<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel" xlink:type="simple" />
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel" xlink:type="simple" />
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_us-gaap_BankingAndThriftAbstract_CBECC0C6A91AC676F963B5A5CE775D5B_label_en-US" xlink:label="lab_us-gaap_BankingAndThriftAbstract_CBECC0C6A91AC676F963B5A5CE775D5B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Banking and Thrift [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BankingAndThriftAbstract" xlink:label="loc_us-gaap_BankingAndThriftAbstract_CBECC0C6A91AC676F963B5A5CE775D5B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BankingAndThriftAbstract_CBECC0C6A91AC676F963B5A5CE775D5B" xlink:to="lab_us-gaap_BankingAndThriftAbstract_CBECC0C6A91AC676F963B5A5CE775D5B" xlink:type="arc" />
    <link:label id="lab_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA_terseLabel_en-US" xlink:label="lab_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Equity Tier 1 (to risk-weighted assets)</link:label>
    <link:label id="lab_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA_label_en-US" xlink:label="lab_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Common Capital [Abstract]</link:label>
    <link:label id="lab_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA_documentation_en-US" xlink:label="lab_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tier One Common Capital [Abstract]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TierOneCommonCapitalAbstract" xlink:label="loc_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA" xlink:to="lab_gbci_TierOneCommonCapitalAbstract_8206E446EB9620DE3254B5A5CE778DCA" xlink:type="arc" />
    <link:label id="lab_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78_terseLabel_en-US" xlink:label="lab_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital Conservation Buffer for 2017</link:label>
    <link:label id="lab_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78_label_en-US" xlink:label="lab_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CapitalConservationBufferToRiskWeightedAssetsCurrentYear</link:label>
    <link:label id="lab_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78_documentation_en-US" xlink:label="lab_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Capital Conservation Buffer as a percentage of risk-weighted assets required for the current year.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear" xlink:label="loc_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78" xlink:to="lab_gbci_CapitalConservationBufferToRiskWeightedAssetsCurrentYear_48B73D9D33BD59063E61B5A5CE7DED78" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentAbstract_AFF837AE944031A211227598770390FC_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentAbstract_075350DB519457899AD90E6E8DADA36A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAbstract_075350DB519457899AD90E6E8DADA36A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentAbstract_075350DB519457899AD90E6E8DADA36A" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentAbstract_075350DB519457899AD90E6E8DADA36A" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_56A1F246CE1120E1984D75987704C15D_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_B4896AD6FD81581C9AE4B6C3FF287BEB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Premises and Equipment</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_56A1F246CE1120E1984D75987704C15D_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_B4896AD6FD81581C9AE4B6C3FF287BEB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_B4896AD6FD81581C9AE4B6C3FF287BEB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_B4896AD6FD81581C9AE4B6C3FF287BEB" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_B4896AD6FD81581C9AE4B6C3FF287BEB" xlink:type="arc" />
    <link:label id="lab_us-gaap_ReceivablesAbstract_EA5D6904AA69DB102233A45FDD1F638E_label_en-US" xlink:label="lab_us-gaap_ReceivablesAbstract_EA5D6904AA69DB102233A45FDD1F638E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Receivables [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReceivablesAbstract" xlink:label="loc_us-gaap_ReceivablesAbstract_EA5D6904AA69DB102233A45FDD1F638E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReceivablesAbstract_EA5D6904AA69DB102233A45FDD1F638E" xlink:to="lab_us-gaap_ReceivablesAbstract_EA5D6904AA69DB102233A45FDD1F638E" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableDisclosureAbstract_FAE2A870F4F728086C8AA45FDD1F8AB5_terseLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableDisclosureAbstract_FAE2A870F4F728086C8AA45FDD1F8AB5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans Receivable</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableDisclosureAbstract_FAE2A870F4F728086C8AA45FDD1F8AB5_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableDisclosureAbstract_FAE2A870F4F728086C8AA45FDD1F8AB5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableDisclosureAbstract" xlink:label="loc_us-gaap_LoansAndLeasesReceivableDisclosureAbstract_FAE2A870F4F728086C8AA45FDD1F8AB5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableDisclosureAbstract_FAE2A870F4F728086C8AA45FDD1F8AB5" xlink:to="lab_us-gaap_LoansAndLeasesReceivableDisclosureAbstract_FAE2A870F4F728086C8AA45FDD1F8AB5" xlink:type="arc" />
    <link:label id="lab_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB_terseLabel_en-US" xlink:label="lab_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of segments in the Company's loan portfolio</link:label>
    <link:label id="lab_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB_label_en-US" xlink:label="lab_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Number of Portfolio Segments</link:label>
    <link:label id="lab_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB_documentation_en-US" xlink:label="lab_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of portfolio segments in the company's total financing receivables.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FinancingReceivableNumberofPortfolioSegments" xlink:label="loc_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB" xlink:to="lab_gbci_FinancingReceivableNumberofPortfolioSegments_B5AF1B19316F1CE89948A45FDD1F86BB" xlink:type="arc" />
    <link:label id="lab_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1_verboseLabel_en-US" xlink:label="lab_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percentage of consolidated stockholders equity exceeding which no borrower had outstanding loans or commitments</link:label>
    <link:label id="lab_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1_label_en-US" xlink:label="lab_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of Consolidated Stockholders Equity Exceeding Which no Borrower had Outstanding Loans or Commitments</link:label>
    <link:label id="lab_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1_documentation_en-US" xlink:label="lab_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage of consolidated stockholders equity exceeding which no borrower had outstanding loans or commitments.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments" xlink:label="loc_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1" xlink:to="lab_gbci_PercentageOfConsolidatedStockholdersEquityExceedingWhichNoBorrowerHadOutstandingLoansOrCommitments_4701E3D57DADCE1B3D0CA45FDD1F8FB1" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansReceivableWithVariableRatesOfInterest1_ECBFE0915AE18F613057A45FDD1F9A57_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansReceivableWithVariableRatesOfInterest1_ECBFE0915AE18F613057A45FDD1F9A57" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Variable rate loans</link:label>
    <link:label id="lab_us-gaap_LoansReceivableWithVariableRatesOfInterest1_ECBFE0915AE18F613057A45FDD1F9A57_label_en-US" xlink:label="lab_us-gaap_LoansReceivableWithVariableRatesOfInterest1_ECBFE0915AE18F613057A45FDD1F9A57" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans Receivable with Variable Rates of Interest</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansReceivableWithVariableRatesOfInterest1" xlink:label="loc_us-gaap_LoansReceivableWithVariableRatesOfInterest1_ECBFE0915AE18F613057A45FDD1F9A57" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansReceivableWithVariableRatesOfInterest1_ECBFE0915AE18F613057A45FDD1F9A57" xlink:to="lab_us-gaap_LoansReceivableWithVariableRatesOfInterest1_ECBFE0915AE18F613057A45FDD1F9A57" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansReceivableWithFixedRatesOfInterest1_01DC2C2CB62020A84603A45FDD1F9133_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansReceivableWithFixedRatesOfInterest1_01DC2C2CB62020A84603A45FDD1F9133" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fixed rate loans</link:label>
    <link:label id="lab_us-gaap_LoansReceivableWithFixedRatesOfInterest1_01DC2C2CB62020A84603A45FDD1F9133_label_en-US" xlink:label="lab_us-gaap_LoansReceivableWithFixedRatesOfInterest1_01DC2C2CB62020A84603A45FDD1F9133" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans Receivable with Fixed Rates of Interest</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansReceivableWithFixedRatesOfInterest1" xlink:label="loc_us-gaap_LoansReceivableWithFixedRatesOfInterest1_01DC2C2CB62020A84603A45FDD1F9133" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansReceivableWithFixedRatesOfInterest1_01DC2C2CB62020A84603A45FDD1F9133" xlink:to="lab_us-gaap_LoansReceivableWithFixedRatesOfInterest1_01DC2C2CB62020A84603A45FDD1F9133" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansPledgedAsCollateral_E62110745150FFD870C2A45FDD1FADE4_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansPledgedAsCollateral_E62110745150FFD870C2A45FDD1FADE4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans pledged as collateral</link:label>
    <link:label id="lab_us-gaap_LoansPledgedAsCollateral_E62110745150FFD870C2A45FDD1FADE4_label_en-US" xlink:label="lab_us-gaap_LoansPledgedAsCollateral_E62110745150FFD870C2A45FDD1FADE4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans Pledged as Collateral</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansPledgedAsCollateral" xlink:label="loc_us-gaap_LoansPledgedAsCollateral_E62110745150FFD870C2A45FDD1FADE4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansPledgedAsCollateral_E62110745150FFD870C2A45FDD1FADE4" xlink:to="lab_us-gaap_LoansPledgedAsCollateral_E62110745150FFD870C2A45FDD1FADE4" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableRelatedParties_F9394999741507EDFD60A45FDD1F5266_periodEndLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableRelatedParties_F9394999741507EDFD60A45FDD1F5266" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Aggregate amount of loans outstanding to related parties</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableRelatedParties_F9394999741507EDFD60A45FDD1F5266_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableRelatedParties_F9394999741507EDFD60A45FDD1F5266" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable, Related Parties</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedParties" xlink:label="loc_us-gaap_LoansAndLeasesReceivableRelatedParties_F9394999741507EDFD60A45FDD1F5266" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableRelatedParties_F9394999741507EDFD60A45FDD1F5266" xlink:to="lab_us-gaap_LoansAndLeasesReceivableRelatedParties_F9394999741507EDFD60A45FDD1F5266" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions_713570DD54DFE23EA90EA45FDD1FE8F4_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions_713570DD54DFE23EA90EA45FDD1FE8F4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">New loans to related parties</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions_713570DD54DFE23EA90EA45FDD1FE8F4_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions_713570DD54DFE23EA90EA45FDD1FE8F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable, Related Parties, Additions</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions" xlink:label="loc_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions_713570DD54DFE23EA90EA45FDD1FE8F4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions_713570DD54DFE23EA90EA45FDD1FE8F4" xlink:to="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesAdditions_713570DD54DFE23EA90EA45FDD1FE8F4" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds_8EBF16116D31A8AA6158A45FDD1F2AC3_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds_8EBF16116D31A8AA6158A45FDD1F2AC3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Repayments of loans by related parties</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds_8EBF16116D31A8AA6158A45FDD1F2AC3_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds_8EBF16116D31A8AA6158A45FDD1F2AC3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable, Related Parties, Proceeds</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds" xlink:label="loc_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds_8EBF16116D31A8AA6158A45FDD1F2AC3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds_8EBF16116D31A8AA6158A45FDD1F2AC3" xlink:to="lab_us-gaap_LoansAndLeasesReceivableRelatedPartiesProceeds_8EBF16116D31A8AA6158A45FDD1F2AC3" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans_C11E6C421CD62188E11DA45FDD1FF991_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans_C11E6C421CD62188E11DA45FDD1FF991" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest income that would have been recorded on non-accrual loans</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans_C11E6C421CD62188E11DA45FDD1FF991_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans_C11E6C421CD62188E11DA45FDD1FF991" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans" xlink:label="loc_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans_C11E6C421CD62188E11DA45FDD1FF991" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans_C11E6C421CD62188E11DA45FDD1FF991" xlink:to="lab_us-gaap_LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans_C11E6C421CD62188E11DA45FDD1FF991" xlink:type="arc" />
    <link:label id="lab_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E_terseLabel_en-US" xlink:label="lab_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">TDR With Pre Modification Loan Balance for Which Oreo Was Received</link:label>
    <link:label id="lab_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E_label_en-US" xlink:label="lab_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">TDR With Pre Modification Loan Balance for Which Oreo Was Received</link:label>
    <link:label id="lab_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E_documentation_en-US" xlink:label="lab_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">TDR with pre modification loan balance, for which OREO was received.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived" xlink:label="loc_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E" xlink:to="lab_gbci_TdrWithPreModificationLoanBalanceForWhichOreoWasReceived_1882355ADB417DF0DBDEA45FDD1FA84E" xlink:type="arc" />
    <link:label id="lab_us-gaap_MortgageLoansInProcessOfForeclosureAmount_36073EBBA223009E838DA45FDD1F8B8E_terseLabel_en-US" xlink:label="lab_us-gaap_MortgageLoansInProcessOfForeclosureAmount_36073EBBA223009E838DA45FDD1F8B8E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process</link:label>
    <link:label id="lab_us-gaap_MortgageLoansInProcessOfForeclosureAmount_36073EBBA223009E838DA45FDD1F8B8E_label_en-US" xlink:label="lab_us-gaap_MortgageLoansInProcessOfForeclosureAmount_36073EBBA223009E838DA45FDD1F8B8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Mortgage Loans in Process of Foreclosure, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageLoansInProcessOfForeclosureAmount" xlink:label="loc_us-gaap_MortgageLoansInProcessOfForeclosureAmount_36073EBBA223009E838DA45FDD1F8B8E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MortgageLoansInProcessOfForeclosureAmount_36073EBBA223009E838DA45FDD1F8B8E" xlink:to="lab_us-gaap_MortgageLoansInProcessOfForeclosureAmount_36073EBBA223009E838DA45FDD1F8B8E" xlink:type="arc" />
    <link:label id="lab_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE_terseLabel_en-US" xlink:label="lab_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">OREO Secured by Residential Real Estate</link:label>
    <link:label id="lab_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE_label_en-US" xlink:label="lab_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Real Estate Acquired Through Foreclosure, Secured by Residential Real Estate</link:label>
    <link:label id="lab_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE_documentation_en-US" xlink:label="lab_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Real Estate Acquired Through Foreclosure, Secured by Residential Real Estate</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate" xlink:label="loc_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE" xlink:to="lab_gbci_RealEstateAcquiredThroughForeclosureSecuredbyResidentialRealEstate_E9BD2DA2AA4A13FD0869A45FDD1F71DE" xlink:type="arc" />
    <link:label id="lab_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A_verboseLabel_en-US" xlink:label="lab_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Additional unfunded commitments on TDRs</link:label>
    <link:label id="lab_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A_label_en-US" xlink:label="lab_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Outstanding Commitments on Troubled Debt Restructuring</link:label>
    <link:label id="lab_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A_documentation_en-US" xlink:label="lab_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Additional outstanding commitments on TDRs.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring" xlink:label="loc_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A" xlink:to="lab_gbci_AdditionalOutstandingCommitmentsOnTroubledDebtRestructuring_7B642CCF060D2603AB43A45FDD1F369A" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown_6BFA12F9A03FAF8AFCD4A45FDD1F9E48_verboseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown_6BFA12F9A03FAF8AFCD4A45FDD1F9E48" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Charge-offs on TDRs</link:label>
    <link:label id="lab_us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown_6BFA12F9A03FAF8AFCD4A45FDD1F9E48_label_en-US" xlink:label="lab_us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown_6BFA12F9A03FAF8AFCD4A45FDD1F9E48" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown" xlink:label="loc_us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown_6BFA12F9A03FAF8AFCD4A45FDD1F9E48" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown_6BFA12F9A03FAF8AFCD4A45FDD1F9E48" xlink:to="lab_us-gaap_FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown_6BFA12F9A03FAF8AFCD4A45FDD1F9E48" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_219640E0477CEB4F6D68759876DABF0B_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_9DB23DEAC0AA5F5B9A61612C07EE6DBC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_9DB23DEAC0AA5F5B9A61612C07EE6DBC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_9DB23DEAC0AA5F5B9A61612C07EE6DBC" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract_9DB23DEAC0AA5F5B9A61612C07EE6DBC" xlink:type="arc" />
    <link:label id="lab_us-gaap_PreferredStockParOrStatedValuePerShare_FDD7C778A602F00BBE27759876DADBBA_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockParOrStatedValuePerShare_F3A24D21C8D95976B902E5B91C0305B2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Preferred shares, par value</link:label>
    <link:label id="lab_us-gaap_PreferredStockParOrStatedValuePerShare_FDD7C778A602F00BBE27759876DADBBA_label_en-US" xlink:label="lab_us-gaap_PreferredStockParOrStatedValuePerShare_F3A24D21C8D95976B902E5B91C0305B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock, Par or Stated Value Per Share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_F3A24D21C8D95976B902E5B91C0305B2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockParOrStatedValuePerShare_F3A24D21C8D95976B902E5B91C0305B2" xlink:to="lab_us-gaap_PreferredStockParOrStatedValuePerShare_F3A24D21C8D95976B902E5B91C0305B2" xlink:type="arc" />
    <link:label id="lab_us-gaap_PreferredStockSharesAuthorized_E34FDFD8CF487621A05F759876DB0EFF_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesAuthorized_16CBC7B1241D5BB3B988B9E1F89E3E66" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Preferred shares, authorized</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesAuthorized_E34FDFD8CF487621A05F759876DB0EFF_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesAuthorized_16CBC7B1241D5BB3B988B9E1F89E3E66" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock, Shares Authorized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_16CBC7B1241D5BB3B988B9E1F89E3E66" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockSharesAuthorized_16CBC7B1241D5BB3B988B9E1F89E3E66" xlink:to="lab_us-gaap_PreferredStockSharesAuthorized_16CBC7B1241D5BB3B988B9E1F89E3E66" xlink:type="arc" />
    <link:label id="lab_us-gaap_PreferredStockSharesIssued_9A376156C3BC99A5B969759876DB7F7B_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued_9E0DCA5A8B6B5D6E9DB8C2B8D66917C9" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Preferred shares, issued</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesIssued_9A376156C3BC99A5B969759876DB7F7B_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued_9E0DCA5A8B6B5D6E9DB8C2B8D66917C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock, Shares Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_9E0DCA5A8B6B5D6E9DB8C2B8D66917C9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockSharesIssued_9E0DCA5A8B6B5D6E9DB8C2B8D66917C9" xlink:to="lab_us-gaap_PreferredStockSharesIssued_9E0DCA5A8B6B5D6E9DB8C2B8D66917C9" xlink:type="arc" />
    <link:label id="lab_us-gaap_PreferredStockSharesOutstanding_73F44C78CB75005A5336759876DB2E39_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding_C2148205257F5FB98A2E043736105DE2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Preferred shares, outstanding</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesOutstanding_73F44C78CB75005A5336759876DB2E39_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding_C2148205257F5FB98A2E043736105DE2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock, Shares Outstanding</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_C2148205257F5FB98A2E043736105DE2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockSharesOutstanding_C2148205257F5FB98A2E043736105DE2" xlink:to="lab_us-gaap_PreferredStockSharesOutstanding_C2148205257F5FB98A2E043736105DE2" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_0B4C7DE29AB5EB372F92759876DB33CF_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare_331881551950543EAD0D257D4AE8E5F7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common stock, par value</link:label>
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_0B4C7DE29AB5EB372F92759876DB33CF_label_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare_331881551950543EAD0D257D4AE8E5F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Par or Stated Value Per Share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_331881551950543EAD0D257D4AE8E5F7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockParOrStatedValuePerShare_331881551950543EAD0D257D4AE8E5F7" xlink:to="lab_us-gaap_CommonStockParOrStatedValuePerShare_331881551950543EAD0D257D4AE8E5F7" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_39DAA0D2B3D310275011759876DB6F4B_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_0CB878C0003D59C2BA8D1F74447078D7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common stock, shares authorized</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_39DAA0D2B3D310275011759876DB6F4B_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized_0CB878C0003D59C2BA8D1F74447078D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Shares Authorized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_0CB878C0003D59C2BA8D1F74447078D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesAuthorized_0CB878C0003D59C2BA8D1F74447078D7" xlink:to="lab_us-gaap_CommonStockSharesAuthorized_0CB878C0003D59C2BA8D1F74447078D7" xlink:type="arc" />
    <link:label id="lab_us-gaap_EquityAbstract_E21A330271EAE06377F29ADADEDBDF45_label_en-US" xlink:label="lab_us-gaap_EquityAbstract_E21A330271EAE06377F29ADADEDBDF45" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityAbstract" xlink:label="loc_us-gaap_EquityAbstract_E21A330271EAE06377F29ADADEDBDF45" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityAbstract_E21A330271EAE06377F29ADADEDBDF45" xlink:to="lab_us-gaap_EquityAbstract_E21A330271EAE06377F29ADADEDBDF45" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_27F8D2968EBB7B8E73B09ADADEDB45C6_verboseLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_27F8D2968EBB7B8E73B09ADADEDB45C6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss)</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_27F8D2968EBB7B8E73B09ADADEDB45C6_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_27F8D2968EBB7B8E73B09ADADEDB45C6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss) Note [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock" xlink:label="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_27F8D2968EBB7B8E73B09ADADEDB45C6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_27F8D2968EBB7B8E73B09ADADEDB45C6" xlink:to="lab_us-gaap_ComprehensiveIncomeNoteTextBlock_27F8D2968EBB7B8E73B09ADADEDB45C6" xlink:type="arc" />
    <link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_E6A22FC4214C3FEB6186AF82040B9563_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_E6A22FC4214C3FEB6186AF82040B9563" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill and Intangible Assets Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_E6A22FC4214C3FEB6186AF82040B9563" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_E6A22FC4214C3FEB6186AF82040B9563" xlink:to="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_E6A22FC4214C3FEB6186AF82040B9563" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FC27830B287F689EB520AF82040B8C94_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FC27830B287F689EB520AF82040B8C94" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of core deposit intangibles</link:label>
    <link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FC27830B287F689EB520AF82040B8C94_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FC27830B287F689EB520AF82040B8C94" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Finite-Lived Intangible Assets [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FC27830B287F689EB520AF82040B8C94" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FC27830B287F689EB520AF82040B8C94" xlink:to="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_FC27830B287F689EB520AF82040B8C94" xlink:type="arc" />
    <link:label id="lab_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB_terseLabel_en-US" xlink:label="lab_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Changes in the carrying value of goodwill</link:label>
    <link:label id="lab_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB_label_en-US" xlink:label="lab_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill Rollforward [Text Block]</link:label>
    <link:label id="lab_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB_documentation_en-US" xlink:label="lab_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tabular disclosure of goodwill rollforward schedule.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_GoodwillRollforwardTextBlock" xlink:label="loc_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB" xlink:to="lab_gbci_GoodwillRollforwardTextBlock_A7312C352ACA10A58CB3AF82040B3FEB" xlink:type="arc" />
    <link:label id="lab_us-gaap_DepositsAbstract_84A688E7C22E4E0A86E8A4BB1512C5DE_label_en-US" xlink:label="lab_us-gaap_DepositsAbstract_84A688E7C22E4E0A86E8A4BB1512C5DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepositsAbstract" xlink:label="loc_us-gaap_DepositsAbstract_84A688E7C22E4E0A86E8A4BB1512C5DE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepositsAbstract_84A688E7C22E4E0A86E8A4BB1512C5DE" xlink:to="lab_us-gaap_DepositsAbstract_84A688E7C22E4E0A86E8A4BB1512C5DE" xlink:type="arc" />
    <link:label id="lab_us-gaap_MaturitiesOfTimeDepositsAbstract_D26CE3F79FFEB6EA9075A4BB1512F034_terseLabel_en-US" xlink:label="lab_us-gaap_MaturitiesOfTimeDepositsAbstract_D26CE3F79FFEB6EA9075A4BB1512F034" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturities of Time Deposits</link:label>
    <link:label id="lab_us-gaap_MaturitiesOfTimeDepositsAbstract_D26CE3F79FFEB6EA9075A4BB1512F034_label_en-US" xlink:label="lab_us-gaap_MaturitiesOfTimeDepositsAbstract_D26CE3F79FFEB6EA9075A4BB1512F034" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturities of Time Deposits [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaturitiesOfTimeDepositsAbstract" xlink:label="loc_us-gaap_MaturitiesOfTimeDepositsAbstract_D26CE3F79FFEB6EA9075A4BB1512F034" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MaturitiesOfTimeDepositsAbstract_D26CE3F79FFEB6EA9075A4BB1512F034" xlink:to="lab_us-gaap_MaturitiesOfTimeDepositsAbstract_D26CE3F79FFEB6EA9075A4BB1512F034" xlink:type="arc" />
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearOne_B6F3EC77BE3291F10C7FA4BB15123E88_verboseLabel_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearOne_B6F3EC77BE3291F10C7FA4BB15123E88" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2018</link:label>
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearOne_B6F3EC77BE3291F10C7FA4BB15123E88_label_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearOne_B6F3EC77BE3291F10C7FA4BB15123E88" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Time Deposit Maturities, Next Twelve Months</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearOne" xlink:label="loc_us-gaap_TimeDepositMaturitiesYearOne_B6F3EC77BE3291F10C7FA4BB15123E88" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TimeDepositMaturitiesYearOne_B6F3EC77BE3291F10C7FA4BB15123E88" xlink:to="lab_us-gaap_TimeDepositMaturitiesYearOne_B6F3EC77BE3291F10C7FA4BB15123E88" xlink:type="arc" />
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearTwo_CE0829D816C44C84BDB6A4BB151202C5_verboseLabel_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearTwo_CE0829D816C44C84BDB6A4BB151202C5" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2019</link:label>
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearTwo_CE0829D816C44C84BDB6A4BB151202C5_label_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearTwo_CE0829D816C44C84BDB6A4BB151202C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Time Deposit Maturities, Year Two</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearTwo" xlink:label="loc_us-gaap_TimeDepositMaturitiesYearTwo_CE0829D816C44C84BDB6A4BB151202C5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TimeDepositMaturitiesYearTwo_CE0829D816C44C84BDB6A4BB151202C5" xlink:to="lab_us-gaap_TimeDepositMaturitiesYearTwo_CE0829D816C44C84BDB6A4BB151202C5" xlink:type="arc" />
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearThree_D9F5425F45C4DB023D89A4BB15121BEC_verboseLabel_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearThree_D9F5425F45C4DB023D89A4BB15121BEC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2020</link:label>
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearThree_D9F5425F45C4DB023D89A4BB15121BEC_label_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearThree_D9F5425F45C4DB023D89A4BB15121BEC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Time Deposit Maturities, Year Three</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearThree" xlink:label="loc_us-gaap_TimeDepositMaturitiesYearThree_D9F5425F45C4DB023D89A4BB15121BEC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TimeDepositMaturitiesYearThree_D9F5425F45C4DB023D89A4BB15121BEC" xlink:to="lab_us-gaap_TimeDepositMaturitiesYearThree_D9F5425F45C4DB023D89A4BB15121BEC" xlink:type="arc" />
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearFour_D0643DE4E9E72DAC50A7A4BB1512CCE2_verboseLabel_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearFour_D0643DE4E9E72DAC50A7A4BB1512CCE2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2021</link:label>
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearFour_D0643DE4E9E72DAC50A7A4BB1512CCE2_label_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearFour_D0643DE4E9E72DAC50A7A4BB1512CCE2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Time Deposit Maturities, Year Four</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearFour" xlink:label="loc_us-gaap_TimeDepositMaturitiesYearFour_D0643DE4E9E72DAC50A7A4BB1512CCE2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TimeDepositMaturitiesYearFour_D0643DE4E9E72DAC50A7A4BB1512CCE2" xlink:to="lab_us-gaap_TimeDepositMaturitiesYearFour_D0643DE4E9E72DAC50A7A4BB1512CCE2" xlink:type="arc" />
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearFive_79AE9607A9627E5493EDA4BB1512C146_verboseLabel_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearFive_79AE9607A9627E5493EDA4BB1512C146" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2022</link:label>
    <link:label id="lab_us-gaap_TimeDepositMaturitiesYearFive_79AE9607A9627E5493EDA4BB1512C146_label_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesYearFive_79AE9607A9627E5493EDA4BB1512C146" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Time Deposit Maturities, Year Five</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesYearFive" xlink:label="loc_us-gaap_TimeDepositMaturitiesYearFive_79AE9607A9627E5493EDA4BB1512C146" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TimeDepositMaturitiesYearFive_79AE9607A9627E5493EDA4BB1512C146" xlink:to="lab_us-gaap_TimeDepositMaturitiesYearFive_79AE9607A9627E5493EDA4BB1512C146" xlink:type="arc" />
    <link:label id="lab_us-gaap_TimeDepositMaturitiesAfterYearFive_1F03B9A00F0550689DB8A4BB15126BD0_verboseLabel_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesAfterYearFive_1F03B9A00F0550689DB8A4BB15126BD0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
    <link:label id="lab_us-gaap_TimeDepositMaturitiesAfterYearFive_1F03B9A00F0550689DB8A4BB15126BD0_label_en-US" xlink:label="lab_us-gaap_TimeDepositMaturitiesAfterYearFive_1F03B9A00F0550689DB8A4BB15126BD0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Time Deposit Maturities, after Year Five</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDepositMaturitiesAfterYearFive" xlink:label="loc_us-gaap_TimeDepositMaturitiesAfterYearFive_1F03B9A00F0550689DB8A4BB15126BD0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TimeDepositMaturitiesAfterYearFive_1F03B9A00F0550689DB8A4BB15126BD0" xlink:to="lab_us-gaap_TimeDepositMaturitiesAfterYearFive_1F03B9A00F0550689DB8A4BB15126BD0" xlink:type="arc" />
    <link:label id="lab_us-gaap_TimeDeposits_E32147B26B48A0BD00A7A4BB1512D97E_totalLabel_en-US" xlink:label="lab_us-gaap_TimeDeposits_E32147B26B48A0BD00A7A4BB1512D97E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_TimeDeposits_E32147B26B48A0BD00A7A4BB1512D97E_label_en-US" xlink:label="lab_us-gaap_TimeDeposits_E32147B26B48A0BD00A7A4BB1512D97E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Time Deposits</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TimeDeposits" xlink:label="loc_us-gaap_TimeDeposits_E32147B26B48A0BD00A7A4BB1512D97E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TimeDeposits_E32147B26B48A0BD00A7A4BB1512D97E" xlink:to="lab_us-gaap_TimeDeposits_E32147B26B48A0BD00A7A4BB1512D97E" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxDisclosureAbstract_57BB0233661FF92F8BD87598774549AA_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureAbstract_32EA9112C28D58E886391025B431D419" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_32EA9112C28D58E886391025B431D419" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_32EA9112C28D58E886391025B431D419" xlink:to="lab_us-gaap_IncomeTaxDisclosureAbstract_32EA9112C28D58E886391025B431D419" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_08E020EAF8989AB79426759877459FE2_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock_2AA1C8CDF0BD5F08B7B396F3520C2B9B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Federal and State Income Taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxDisclosureTextBlock_08E020EAF8989AB79426759877459FE2_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureTextBlock_2AA1C8CDF0BD5F08B7B396F3520C2B9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_2AA1C8CDF0BD5F08B7B396F3520C2B9B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxDisclosureTextBlock_2AA1C8CDF0BD5F08B7B396F3520C2B9B" xlink:to="lab_us-gaap_IncomeTaxDisclosureTextBlock_2AA1C8CDF0BD5F08B7B396F3520C2B9B" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationsAbstract_C28B6C06E98C2CB2EADEAEABC4C091C3_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationsAbstract_C28B6C06E98C2CB2EADEAEABC4C091C3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combinations [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationsAbstract" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_C28B6C06E98C2CB2EADEAEABC4C091C3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_C28B6C06E98C2CB2EADEAEABC4C091C3" xlink:to="lab_us-gaap_BusinessCombinationsAbstract_C28B6C06E98C2CB2EADEAEABC4C091C3" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_280C5DAB6F3055FB428EAEABC4C09432_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_280C5DAB6F3055FB428EAEABC4C09432" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Business Acquisitions, by Acquisition [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_280C5DAB6F3055FB428EAEABC4C09432_label_en-US" xlink:label="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_280C5DAB6F3055FB428EAEABC4C09432" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Business Acquisitions, by Acquisition [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_280C5DAB6F3055FB428EAEABC4C09432" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_280C5DAB6F3055FB428EAEABC4C09432" xlink:to="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_280C5DAB6F3055FB428EAEABC4C09432" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionAxis_5F95042F38BB6DBFA5C6AEABC4C07198_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis_5F95042F38BB6DBFA5C6AEABC4C07198" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition [Axis]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionAxis_5F95042F38BB6DBFA5C6AEABC4C07198_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis_5F95042F38BB6DBFA5C6AEABC4C07198" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_5F95042F38BB6DBFA5C6AEABC4C07198" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_5F95042F38BB6DBFA5C6AEABC4C07198" xlink:to="lab_us-gaap_BusinessAcquisitionAxis_5F95042F38BB6DBFA5C6AEABC4C07198" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_49DBC0B3DB8410A36BA3AEABC4C115F9_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_49DBC0B3DB8410A36BA3AEABC4C115F9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_49DBC0B3DB8410A36BA3AEABC4C115F9_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain_49DBC0B3DB8410A36BA3AEABC4C115F9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_49DBC0B3DB8410A36BA3AEABC4C115F9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_49DBC0B3DB8410A36BA3AEABC4C115F9" xlink:to="lab_us-gaap_BusinessAcquisitionAcquireeDomain_49DBC0B3DB8410A36BA3AEABC4C115F9" xlink:type="arc" />
    <link:label id="lab_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1_terseLabel_en-US" xlink:label="lab_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">The Foothills Bank</link:label>
    <link:label id="lab_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1_label_en-US" xlink:label="lab_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">The Foothills Bank [Member]</link:label>
    <link:label id="lab_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1_documentation_en-US" xlink:label="lab_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The Foothills Bank [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TheFoothillsBankMember" xlink:label="loc_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1" xlink:to="lab_gbci_TheFoothillsBankMember_9D68FA7858571761DF27AEABC4C18AB1" xlink:type="arc" />
    <link:label id="lab_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB_terseLabel_en-US" xlink:label="lab_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Treasure State Bank</link:label>
    <link:label id="lab_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB_label_en-US" xlink:label="lab_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Treasure State Bank [Member]</link:label>
    <link:label id="lab_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB_documentation_en-US" xlink:label="lab_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Treasure State Bank [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TreasureStateBankMember" xlink:label="loc_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB" xlink:to="lab_gbci_TreasureStateBankMember_0346E4448360F611C2A0AEABC4C108FB" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionLineItems_6C10E6C32771FD385591AEABC4C11D7B_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems_6C10E6C32771FD385591AEABC4C11D7B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionLineItems_6C10E6C32771FD385591AEABC4C11D7B_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems_6C10E6C32771FD385591AEABC4C11D7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_6C10E6C32771FD385591AEABC4C11D7B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_6C10E6C32771FD385591AEABC4C11D7B" xlink:to="lab_us-gaap_BusinessAcquisitionLineItems_6C10E6C32771FD385591AEABC4C11D7B" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_835ED8BD21BDD7CA7D89AEABC4C1FED3_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_835ED8BD21BDD7CA7D89AEABC4C1FED3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effective Date of Acquisition</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_835ED8BD21BDD7CA7D89AEABC4C1FED3_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_835ED8BD21BDD7CA7D89AEABC4C1FED3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Effective Date of Acquisition</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1" xlink:label="loc_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_835ED8BD21BDD7CA7D89AEABC4C1FED3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_835ED8BD21BDD7CA7D89AEABC4C1FED3" xlink:to="lab_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_835ED8BD21BDD7CA7D89AEABC4C1FED3" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E4F07AD632A2388CBDE4AEABC4C10B9C_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E4F07AD632A2388CBDE4AEABC4C10B9C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Percentage of Outstanding Common Stock Acquired</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E4F07AD632A2388CBDE4AEABC4C10B9C_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E4F07AD632A2388CBDE4AEABC4C10B9C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Percentage of Voting Interests Acquired</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E4F07AD632A2388CBDE4AEABC4C10B9C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E4F07AD632A2388CBDE4AEABC4C10B9C" xlink:to="lab_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_E4F07AD632A2388CBDE4AEABC4C10B9C" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferred1_9E01C64579093CC69DAEAEABC4C19415_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferred1_9E01C64579093CC69DAEAEABC4C19415" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of consideration transferred</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferred1_9E01C64579093CC69DAEAEABC4C19415_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferred1_9E01C64579093CC69DAEAEABC4C19415" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Consideration Transferred</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_9E01C64579093CC69DAEAEABC4C19415" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_9E01C64579093CC69DAEAEABC4C19415" xlink:to="lab_us-gaap_BusinessCombinationConsiderationTransferred1_9E01C64579093CC69DAEAEABC4C19415" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_2C373698C9CC4EBBEE75AEABC4C23C52_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_2C373698C9CC4EBBEE75AEABC4C23C52" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Shares Issued for Aquisition</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_2C373698C9CC4EBBEE75AEABC4C23C52_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_2C373698C9CC4EBBEE75AEABC4C23C52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Equity Interest Issued or Issuable, Number of Shares</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued" xlink:label="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_2C373698C9CC4EBBEE75AEABC4C23C52" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_2C373698C9CC4EBBEE75AEABC4C23C52" xlink:to="lab_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_2C373698C9CC4EBBEE75AEABC4C23C52" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesGross_6846E98273D6DFCB6139AEABC4C22207_terseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesGross_6846E98273D6DFCB6139AEABC4C22207" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash consideration for outstanding shares</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireBusinessesGross_6846E98273D6DFCB6139AEABC4C22207_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireBusinessesGross_6846E98273D6DFCB6139AEABC4C22207" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Businesses, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_6846E98273D6DFCB6139AEABC4C22207" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireBusinessesGross_6846E98273D6DFCB6139AEABC4C22207" xlink:to="lab_us-gaap_PaymentsToAcquireBusinessesGross_6846E98273D6DFCB6139AEABC4C22207" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationAcquiredReceivablesFairValue_0505588650F10247AF6DAEABC4C28753_verboseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquiredReceivablesFairValue_0505588650F10247AF6DAEABC4C28753" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans receivable</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationAcquiredReceivablesFairValue_0505588650F10247AF6DAEABC4C28753_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquiredReceivablesFairValue_0505588650F10247AF6DAEABC4C28753" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Acquired Receivable, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquiredReceivablesFairValue" xlink:label="loc_us-gaap_BusinessCombinationAcquiredReceivablesFairValue_0505588650F10247AF6DAEABC4C28753" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationAcquiredReceivablesFairValue_0505588650F10247AF6DAEABC4C28753" xlink:to="lab_us-gaap_BusinessCombinationAcquiredReceivablesFairValue_0505588650F10247AF6DAEABC4C28753" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_E4D6AFD42DEACFAEFB3EAEABC4C22ACF_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_E4D6AFD42DEACFAEFB3EAEABC4C22ACF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans Receivable Acquired, Gross Principal and Contractual Interest Due</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_E4D6AFD42DEACFAEFB3EAEABC4C22ACF_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_E4D6AFD42DEACFAEFB3EAEABC4C22ACF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Acquired Receivables, Gross Contractual Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount" xlink:label="loc_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_E4D6AFD42DEACFAEFB3EAEABC4C22ACF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_E4D6AFD42DEACFAEFB3EAEABC4C22ACF" xlink:to="lab_us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount_E4D6AFD42DEACFAEFB3EAEABC4C22ACF" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_02B696477C6067F24016AEABC4C24B09_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_02B696477C6067F24016AEABC4C24B09" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Third-party Acquisition Related Costs</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_02B696477C6067F24016AEABC4C24B09_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_02B696477C6067F24016AEABC4C24B09" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Acquisition Related Costs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_02B696477C6067F24016AEABC4C24B09" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_02B696477C6067F24016AEABC4C24B09" xlink:to="lab_us-gaap_BusinessCombinationAcquisitionRelatedCosts_02B696477C6067F24016AEABC4C24B09" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_ED428E282CB92A994E4AAEABC4C26110_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_ED428E282CB92A994E4AAEABC4C26110" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net interest income and non-interest income</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_ED428E282CB92A994E4AAEABC4C26110_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_ED428E282CB92A994E4AAEABC4C26110" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_ED428E282CB92A994E4AAEABC4C26110" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_ED428E282CB92A994E4AAEABC4C26110" xlink:to="lab_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_ED428E282CB92A994E4AAEABC4C26110" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_E01F2B71B6BFD023586AAEABC4C23721_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_E01F2B71B6BFD023586AAEABC4C23721" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_E01F2B71B6BFD023586AAEABC4C23721_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_E01F2B71B6BFD023586AAEABC4C23721" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_E01F2B71B6BFD023586AAEABC4C23721" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_E01F2B71B6BFD023586AAEABC4C23721" xlink:to="lab_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_E01F2B71B6BFD023586AAEABC4C23721" xlink:type="arc" />
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_9D9F09A0B942F8330F8B759877F74FF9_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5B802BB73E5456788EA9E79C9E09AE86" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5B802BB73E5456788EA9E79C9E09AE86" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5B802BB73E5456788EA9E79C9E09AE86" xlink:to="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_5B802BB73E5456788EA9E79C9E09AE86" xlink:type="arc" />
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_F1A521635AB3445CBA20759877F7ED5D_verboseLabel_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_FEF4A57A938655E3BD5E61C88ACB7869" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Nature of Operations and Summary of Significant Accounting Policies</link:label>
    <link:label id="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_F1A521635AB3445CBA20759877F7ED5D_label_en-US" xlink:label="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_FEF4A57A938655E3BD5E61C88ACB7869" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock" xlink:label="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_FEF4A57A938655E3BD5E61C88ACB7869" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_FEF4A57A938655E3BD5E61C88ACB7869" xlink:to="lab_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureAndSignificantAccountingPoliciesTextBlock_FEF4A57A938655E3BD5E61C88ACB7869" xlink:type="arc" />
    <link:label id="lab_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_6C8DBFCA638544F1547675987743B43E_label_en-US" xlink:label="lab_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_0D39A2F95882532283FB1E78F11A45E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments, Debt and Equity Securities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract" xlink:label="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_0D39A2F95882532283FB1E78F11A45E0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_0D39A2F95882532283FB1E78F11A45E0" xlink:to="lab_us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_0D39A2F95882532283FB1E78F11A45E0" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainLossOnInvestmentsAbstract_C72D6DA2CEB594C8028175987743F0DE_verboseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnInvestmentsAbstract_D33C5751595356AD8445CC463BA6BE8A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Gain or loss on sale of investments</link:label>
    <link:label id="lab_us-gaap_GainLossOnInvestmentsAbstract_C72D6DA2CEB594C8028175987743F0DE_label_en-US" xlink:label="lab_us-gaap_GainLossOnInvestmentsAbstract_D33C5751595356AD8445CC463BA6BE8A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) on Investments [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnInvestmentsAbstract" xlink:label="loc_us-gaap_GainLossOnInvestmentsAbstract_D33C5751595356AD8445CC463BA6BE8A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnInvestmentsAbstract_D33C5751595356AD8445CC463BA6BE8A" xlink:to="lab_us-gaap_GainLossOnInvestmentsAbstract_D33C5751595356AD8445CC463BA6BE8A" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossAbstract_BEF46D4D3984DB809D4E7598774392B9_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossAbstract_0F5EAFC8B24950188FD6932B7A894062" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-sale</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossAbstract_BEF46D4D3984DB809D4E7598774392B9_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossAbstract_0F5EAFC8B24950188FD6932B7A894062" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Gross Realized Gain (Loss), Disclosures [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossAbstract_0F5EAFC8B24950188FD6932B7A894062" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossAbstract_0F5EAFC8B24950188FD6932B7A894062" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainLossAbstract_0F5EAFC8B24950188FD6932B7A894062" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds_F1838156667512BF23D775987743D9E8_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds_ABEF223FCFE255909B98172FB1FDFB6C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales and calls of investment securities</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds_F1838156667512BF23D775987743D9E8_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds_ABEF223FCFE255909B98172FB1FDFB6C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Gross Realized Gains (Losses), Sale Proceeds</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds_ABEF223FCFE255909B98172FB1FDFB6C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds_ABEF223FCFE255909B98172FB1FDFB6C" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds_ABEF223FCFE255909B98172FB1FDFB6C" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_A64DF4230AACA25C5F09759877437C54_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_354D91CAE8325AF798ADD90798FDB705" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross realized gains</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_A64DF4230AACA25C5F09759877437C54_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_354D91CAE8325AF798ADD90798FDB705" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Gross Realized Gains</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedGains" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_354D91CAE8325AF798ADD90798FDB705" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_354D91CAE8325AF798ADD90798FDB705" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedGains_354D91CAE8325AF798ADD90798FDB705" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_38D7D54E6934C55EE7B8759877436385_negatedLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_7FE2713A24C2580BBAA0586CC2C958A6" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gross realized losses</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_38D7D54E6934C55EE7B8759877436385_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_7FE2713A24C2580BBAA0586CC2C958A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Gross Realized Losses</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_7FE2713A24C2580BBAA0586CC2C958A6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_7FE2713A24C2580BBAA0586CC2C958A6" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesGrossRealizedLosses_7FE2713A24C2580BBAA0586CC2C958A6" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesSalesOrTransfersOfInvestmentsAbstract_28188EC217B4FAA8189A75987743509D_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesSalesOrTransfersOfInvestmentsAbstract_9CB7BDDED2DB59CC8E00F7F64B16930E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held-to-maturity</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesSalesOrTransfersOfInvestmentsAbstract_28188EC217B4FAA8189A75987743509D_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesSalesOrTransfersOfInvestmentsAbstract_9CB7BDDED2DB59CC8E00F7F64B16930E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Sales or Transfers of Investments [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesSalesOrTransfersOfInvestmentsAbstract" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesSalesOrTransfersOfInvestmentsAbstract_9CB7BDDED2DB59CC8E00F7F64B16930E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesSalesOrTransfersOfInvestmentsAbstract_9CB7BDDED2DB59CC8E00F7F64B16930E" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesSalesOrTransfersOfInvestmentsAbstract_9CB7BDDED2DB59CC8E00F7F64B16930E" xlink:type="arc" />
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_57CAD65003229906B15B7598774328E8_terseLabel_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_F3EFCE476B0D5CE9AE413E7FA3A67190" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from calls of investment securities</link:label>
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_57CAD65003229906B15B7598774328E8_label_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_F3EFCE476B0D5CE9AE413E7FA3A67190" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-Maturity Securities, Gross Realized Gains (Losses), Sale Proceeds</link:label>
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_57CAD65003229906B15B7598774328E8_documentation_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_F3EFCE476B0D5CE9AE413E7FA3A67190" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The total amount of proceeds received for the sale of securities categorized as held-to-maturity during the reporting period.  The sale of held-to-maturity securities includes proceeds from maturities, prepayments and calls.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds" xlink:label="loc_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_F3EFCE476B0D5CE9AE413E7FA3A67190" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_F3EFCE476B0D5CE9AE413E7FA3A67190" xlink:to="lab_gbci_HeldtoMaturitySecuritiesGrossRealizedGainsLossesSaleProceeds_F3EFCE476B0D5CE9AE413E7FA3A67190" xlink:type="arc" />
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_003C17CA182A4D0A9CF9759877439528_terseLabel_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_E2765376BF3555CFB978A864314DB972" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross realized gains</link:label>
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_003C17CA182A4D0A9CF9759877439528_label_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_E2765376BF3555CFB978A864314DB972" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-Maturity Securities, Sold Security, Realized Gain</link:label>
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_003C17CA182A4D0A9CF9759877439528_documentation_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_E2765376BF3555CFB978A864314DB972" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This item represents the gain realized on the sale of held-to-maturity securities disposed of during the period.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain" xlink:label="loc_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_E2765376BF3555CFB978A864314DB972" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_E2765376BF3555CFB978A864314DB972" xlink:to="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedGain_E2765376BF3555CFB978A864314DB972" xlink:type="arc" />
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_1D4290E3C68C57D33DDF75987744E81A_negatedTerseLabel_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_26EB9B16410B5D9497ADE4A01CB0DB98" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Gross realized losses</link:label>
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_1D4290E3C68C57D33DDF75987744E81A_label_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_26EB9B16410B5D9497ADE4A01CB0DB98" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-Maturity Securities, Sold Security, Realized Loss</link:label>
    <link:label id="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_1D4290E3C68C57D33DDF75987744E81A_documentation_en-US" xlink:label="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_26EB9B16410B5D9497ADE4A01CB0DB98" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This item represents the loss realized on the sale of held-to-maturity securities disposed of during the period. Additionally, this item may include, if not separately presented, any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt securities which are being or have been recognized in earnings during the period.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss" xlink:label="loc_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_26EB9B16410B5D9497ADE4A01CB0DB98" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_26EB9B16410B5D9497ADE4A01CB0DB98" xlink:to="lab_gbci_HeldtoMaturitySecuritiesSoldSecurityRealizedLoss_26EB9B16410B5D9497ADE4A01CB0DB98" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueDisclosuresAbstract_735A7F940661112AC2AE759877F37025_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract_05284BEF95CB55268ACE6F071B17EE27" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Disclosures [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_05284BEF95CB55268ACE6F071B17EE27" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_05284BEF95CB55268ACE6F071B17EE27" xlink:to="lab_us-gaap_FairValueDisclosuresAbstract_05284BEF95CB55268ACE6F071B17EE27" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTable_5EB6DCAD22591952F7AF759877F3B3A0_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTable_3B6C1D41F47853ED9BAA607EE21D70A0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Inputs, Assets, Quantitative Information [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTable_5EB6DCAD22591952F7AF759877F3B3A0_label_en-US" xlink:label="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTable_3B6C1D41F47853ED9BAA607EE21D70A0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Inputs, Assets, Quantitative Information [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsAssetsQuantitativeInformationTable" xlink:label="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable_3B6C1D41F47853ED9BAA607EE21D70A0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTable_3B6C1D41F47853ED9BAA607EE21D70A0" xlink:to="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTable_3B6C1D41F47853ED9BAA607EE21D70A0" xlink:type="arc" />
    <link:label id="lab_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_9662BC9498E357CFB79A759877F33985_terseLabel_en-US" xlink:label="lab_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_276E8E12994B5C77922E55411683507F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Assets And Liabilities By Major Types [Axis]</link:label>
    <link:label id="lab_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_9662BC9498E357CFB79A759877F33985_label_en-US" xlink:label="lab_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_276E8E12994B5C77922E55411683507F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Assets And Liabilities By Major Types [Axis]</link:label>
    <link:label id="lab_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_9662BC9498E357CFB79A759877F33985_documentation_en-US" xlink:label="lab_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_276E8E12994B5C77922E55411683507F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value Assets and Liabilities, by Major Types [Axis]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis" xlink:label="loc_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_276E8E12994B5C77922E55411683507F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_276E8E12994B5C77922E55411683507F" xlink:to="lab_gbci_FairValueAssetsAndLiabilitiesByMajorTypesAxis_276E8E12994B5C77922E55411683507F" xlink:type="arc" />
    <link:label id="lab_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_DE4F15D6A1407F09A71B759877F3E3E5_terseLabel_en-US" xlink:label="lab_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_FFCEC5C633CD52E8B1DB3CF2EDD9DF1B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Assets Measured On Nonrecurring Basis Unobservable Input Reconciliation By Asset Class [Domain]</link:label>
    <link:label id="lab_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_DE4F15D6A1407F09A71B759877F3E3E5_label_en-US" xlink:label="lab_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_FFCEC5C633CD52E8B1DB3CF2EDD9DF1B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Assets Measured On Nonrecurring Basis Unobservable Input Reconciliation By Asset Class [Domain]</link:label>
    <link:label id="lab_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_DE4F15D6A1407F09A71B759877F3E3E5_documentation_en-US" xlink:label="lab_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_FFCEC5C633CD52E8B1DB3CF2EDD9DF1B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Asset Class [Domain]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="loc_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_FFCEC5C633CD52E8B1DB3CF2EDD9DF1B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_FFCEC5C633CD52E8B1DB3CF2EDD9DF1B" xlink:to="lab_gbci_FairValueAssetsMeasuredOnNonrecurringBasisUnobservableInputReconciliationByAssetClassDomain_FFCEC5C633CD52E8B1DB3CF2EDD9DF1B" xlink:type="arc" />
    <link:label id="lab_gbci_OtherRealEstateOwnedMember_CA1314864D50DA8DD873759877F3D72B_terseLabel_en-US" xlink:label="lab_gbci_OtherRealEstateOwnedMember_C08383723334529B8BEA6696D0B3FB50" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other real estate owned</link:label>
    <link:label id="lab_gbci_OtherRealEstateOwnedMember_CA1314864D50DA8DD873759877F3D72B_label_en-US" xlink:label="lab_gbci_OtherRealEstateOwnedMember_C08383723334529B8BEA6696D0B3FB50" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other real estate owned [Member]</link:label>
    <link:label id="lab_gbci_OtherRealEstateOwnedMember_CA1314864D50DA8DD873759877F3D72B_documentation_en-US" xlink:label="lab_gbci_OtherRealEstateOwnedMember_C08383723334529B8BEA6696D0B3FB50" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other real estate owned [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OtherRealEstateOwnedMember" xlink:label="loc_gbci_OtherRealEstateOwnedMember_C08383723334529B8BEA6696D0B3FB50" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OtherRealEstateOwnedMember_C08383723334529B8BEA6696D0B3FB50" xlink:to="lab_gbci_OtherRealEstateOwnedMember_C08383723334529B8BEA6696D0B3FB50" xlink:type="arc" />
    <link:label id="lab_gbci_CollateralDependentImpairedLoansNetOfAlllMember_1CBAE154CC88B004091D759877F3A618_terseLabel_en-US" xlink:label="lab_gbci_CollateralDependentImpairedLoansNetOfAlllMember_3302912DF00F5352BFDDE37443565734" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Collateral-dependent Impaired Loans, Net of ALLL</link:label>
    <link:label id="lab_gbci_CollateralDependentImpairedLoansNetOfAlllMember_1CBAE154CC88B004091D759877F3A618_label_en-US" xlink:label="lab_gbci_CollateralDependentImpairedLoansNetOfAlllMember_3302912DF00F5352BFDDE37443565734" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collateral-dependent Impaired Loans, Net of ALLL [Member]</link:label>
    <link:label id="lab_gbci_CollateralDependentImpairedLoansNetOfAlllMember_1CBAE154CC88B004091D759877F3A618_documentation_en-US" xlink:label="lab_gbci_CollateralDependentImpairedLoansNetOfAlllMember_3302912DF00F5352BFDDE37443565734" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Collateral-dependent Impaired Loans, Net of ALLL [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CollateralDependentImpairedLoansNetOfAlllMember" xlink:label="loc_gbci_CollateralDependentImpairedLoansNetOfAlllMember_3302912DF00F5352BFDDE37443565734" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CollateralDependentImpairedLoansNetOfAlllMember_3302912DF00F5352BFDDE37443565734" xlink:to="lab_gbci_CollateralDependentImpairedLoansNetOfAlllMember_3302912DF00F5352BFDDE37443565734" xlink:type="arc" />
    <link:label id="lab_us-gaap_RangeAxis_CD5C70C7AEF58B8EACBB759877F31FEE_terseLabel_en-US" xlink:label="lab_us-gaap_RangeAxis_8912F5AAA7B05B02A8CD176E21C3460E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Range [Axis]</link:label>
    <link:label id="lab_us-gaap_RangeAxis_CD5C70C7AEF58B8EACBB759877F31FEE_label_en-US" xlink:label="lab_us-gaap_RangeAxis_8912F5AAA7B05B02A8CD176E21C3460E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeAxis" xlink:label="loc_us-gaap_RangeAxis_8912F5AAA7B05B02A8CD176E21C3460E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RangeAxis_8912F5AAA7B05B02A8CD176E21C3460E" xlink:to="lab_us-gaap_RangeAxis_8912F5AAA7B05B02A8CD176E21C3460E" xlink:type="arc" />
    <link:label id="lab_us-gaap_RangeMember_B86677774DDF871D1CDB759877F39412_terseLabel_en-US" xlink:label="lab_us-gaap_RangeMember_A62B0D4C870B545AA52D4C660E0520B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Range [Domain]</link:label>
    <link:label id="lab_us-gaap_RangeMember_B86677774DDF871D1CDB759877F39412_label_en-US" xlink:label="lab_us-gaap_RangeMember_A62B0D4C870B545AA52D4C660E0520B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RangeMember" xlink:label="loc_us-gaap_RangeMember_A62B0D4C870B545AA52D4C660E0520B6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RangeMember_A62B0D4C870B545AA52D4C660E0520B6" xlink:to="lab_us-gaap_RangeMember_A62B0D4C870B545AA52D4C660E0520B6" xlink:type="arc" />
    <link:label id="lab_us-gaap_MinimumMember_B960B86DD0B7FA460567759877F48EF0_terseLabel_en-US" xlink:label="lab_us-gaap_MinimumMember_FBBA749D7C765FF481B806415A872216" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum Range</link:label>
    <link:label id="lab_us-gaap_MinimumMember_B960B86DD0B7FA460567759877F48EF0_label_en-US" xlink:label="lab_us-gaap_MinimumMember_FBBA749D7C765FF481B806415A872216" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MinimumMember" xlink:label="loc_us-gaap_MinimumMember_FBBA749D7C765FF481B806415A872216" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MinimumMember_FBBA749D7C765FF481B806415A872216" xlink:to="lab_us-gaap_MinimumMember_FBBA749D7C765FF481B806415A872216" xlink:type="arc" />
    <link:label id="lab_us-gaap_MaximumMember_7B37BB8839349F69D844759877F4E3AA_terseLabel_en-US" xlink:label="lab_us-gaap_MaximumMember_307C1C945518516EB6BAE7EC2ED3C50F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum Range</link:label>
    <link:label id="lab_us-gaap_MaximumMember_7B37BB8839349F69D844759877F4E3AA_label_en-US" xlink:label="lab_us-gaap_MaximumMember_307C1C945518516EB6BAE7EC2ED3C50F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaximumMember" xlink:label="loc_us-gaap_MaximumMember_307C1C945518516EB6BAE7EC2ED3C50F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MaximumMember_307C1C945518516EB6BAE7EC2ED3C50F" xlink:to="lab_us-gaap_MaximumMember_307C1C945518516EB6BAE7EC2ED3C50F" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageMember_6122400041F59378B018759877F4072C_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageMember_615E13C5B70856FD82539AA7AA8C46AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted Average Range</link:label>
    <link:label id="lab_us-gaap_WeightedAverageMember_6122400041F59378B018759877F4072C_label_en-US" xlink:label="lab_us-gaap_WeightedAverageMember_615E13C5B70856FD82539AA7AA8C46AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageMember" xlink:label="loc_us-gaap_WeightedAverageMember_615E13C5B70856FD82539AA7AA8C46AD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageMember_615E13C5B70856FD82539AA7AA8C46AD" xlink:to="lab_us-gaap_WeightedAverageMember_615E13C5B70856FD82539AA7AA8C46AD" xlink:type="arc" />
    <link:label id="lab_us-gaap_ValuationTechniqueAxis_C92994365442BDE1B0E2759877F4DF5A_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationTechniqueAxis_9DAE4DD86DBF50FD9A852B2A7DA33054" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation Technique [Axis]</link:label>
    <link:label id="lab_us-gaap_ValuationTechniqueAxis_C92994365442BDE1B0E2759877F4DF5A_label_en-US" xlink:label="lab_us-gaap_ValuationTechniqueAxis_9DAE4DD86DBF50FD9A852B2A7DA33054" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation Technique [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationTechniqueAxis" xlink:label="loc_us-gaap_ValuationTechniqueAxis_9DAE4DD86DBF50FD9A852B2A7DA33054" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationTechniqueAxis_9DAE4DD86DBF50FD9A852B2A7DA33054" xlink:to="lab_us-gaap_ValuationTechniqueAxis_9DAE4DD86DBF50FD9A852B2A7DA33054" xlink:type="arc" />
    <link:label id="lab_us-gaap_ValuationTechniqueDomain_1289D7AE4E1040575A86759877F461FC_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationTechniqueDomain_BD7C230C3FC95183AA0C0112FB8FE448" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation Technique [Domain]</link:label>
    <link:label id="lab_us-gaap_ValuationTechniqueDomain_1289D7AE4E1040575A86759877F461FC_label_en-US" xlink:label="lab_us-gaap_ValuationTechniqueDomain_BD7C230C3FC95183AA0C0112FB8FE448" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation Technique [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationTechniqueDomain" xlink:label="loc_us-gaap_ValuationTechniqueDomain_BD7C230C3FC95183AA0C0112FB8FE448" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationTechniqueDomain_BD7C230C3FC95183AA0C0112FB8FE448" xlink:to="lab_us-gaap_ValuationTechniqueDomain_BD7C230C3FC95183AA0C0112FB8FE448" xlink:type="arc" />
    <link:label id="lab_gbci_SalesComparisonApproachValuationTechniqueMember_954EBB9C7D5B0302FBF1759877F41FA2_terseLabel_en-US" xlink:label="lab_gbci_SalesComparisonApproachValuationTechniqueMember_60D27CBBEF4E52669004AA174BA7D13D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sales Comparison Approach</link:label>
    <link:label id="lab_gbci_SalesComparisonApproachValuationTechniqueMember_954EBB9C7D5B0302FBF1759877F41FA2_label_en-US" xlink:label="lab_gbci_SalesComparisonApproachValuationTechniqueMember_60D27CBBEF4E52669004AA174BA7D13D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sales Comparison Approach Valuation Technique [Member]</link:label>
    <link:label id="lab_gbci_SalesComparisonApproachValuationTechniqueMember_954EBB9C7D5B0302FBF1759877F41FA2_documentation_en-US" xlink:label="lab_gbci_SalesComparisonApproachValuationTechniqueMember_60D27CBBEF4E52669004AA174BA7D13D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sales Comparison Approach [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SalesComparisonApproachValuationTechniqueMember" xlink:label="loc_gbci_SalesComparisonApproachValuationTechniqueMember_60D27CBBEF4E52669004AA174BA7D13D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SalesComparisonApproachValuationTechniqueMember_60D27CBBEF4E52669004AA174BA7D13D" xlink:to="lab_gbci_SalesComparisonApproachValuationTechniqueMember_60D27CBBEF4E52669004AA174BA7D13D" xlink:type="arc" />
    <link:label id="lab_gbci_CombinedApproachValuationTechniqueMember_9F59FE8DBBE1F173FBD4759877F4B0F8_terseLabel_en-US" xlink:label="lab_gbci_CombinedApproachValuationTechniqueMember_88FFE4E7F202509BB04B0634FB5A8609" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Combined Approach</link:label>
    <link:label id="lab_gbci_CombinedApproachValuationTechniqueMember_9F59FE8DBBE1F173FBD4759877F4B0F8_label_en-US" xlink:label="lab_gbci_CombinedApproachValuationTechniqueMember_88FFE4E7F202509BB04B0634FB5A8609" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Combined Approach Valuation Technique [Member]</link:label>
    <link:label id="lab_gbci_CombinedApproachValuationTechniqueMember_9F59FE8DBBE1F173FBD4759877F4B0F8_documentation_en-US" xlink:label="lab_gbci_CombinedApproachValuationTechniqueMember_88FFE4E7F202509BB04B0634FB5A8609" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Combined Approach [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CombinedApproachValuationTechniqueMember" xlink:label="loc_gbci_CombinedApproachValuationTechniqueMember_88FFE4E7F202509BB04B0634FB5A8609" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CombinedApproachValuationTechniqueMember_88FFE4E7F202509BB04B0634FB5A8609" xlink:to="lab_gbci_CombinedApproachValuationTechniqueMember_88FFE4E7F202509BB04B0634FB5A8609" xlink:type="arc" />
    <link:label id="lab_us-gaap_CostApproachValuationTechniqueMember_71F2C178F9DA52226F68759877F462CD_terseLabel_en-US" xlink:label="lab_us-gaap_CostApproachValuationTechniqueMember_D9F27B3C9ECE542E8E62E95A10B09A29" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cost Approach</link:label>
    <link:label id="lab_us-gaap_CostApproachValuationTechniqueMember_71F2C178F9DA52226F68759877F462CD_label_en-US" xlink:label="lab_us-gaap_CostApproachValuationTechniqueMember_D9F27B3C9ECE542E8E62E95A10B09A29" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost Approach Valuation Technique [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostApproachValuationTechniqueMember" xlink:label="loc_us-gaap_CostApproachValuationTechniqueMember_D9F27B3C9ECE542E8E62E95A10B09A29" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostApproachValuationTechniqueMember_D9F27B3C9ECE542E8E62E95A10B09A29" xlink:to="lab_us-gaap_CostApproachValuationTechniqueMember_D9F27B3C9ECE542E8E62E95A10B09A29" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_F7A45C355B966E13737F759877F401C3_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_55686F24426A5843926FF841D6DD7012" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Hierarchy [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_F7A45C355B966E13737F759877F401C3_label_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_55686F24426A5843926FF841D6DD7012" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Hierarchy [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_55686F24426A5843926FF841D6DD7012" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_55686F24426A5843926FF841D6DD7012" xlink:to="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_55686F24426A5843926FF841D6DD7012" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5A8AB08D6076BFC2C968759877F46A34_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_892FDE592A2950F6B2E4F63F4DCEE693" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Hierarchy [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_5A8AB08D6076BFC2C968759877F46A34_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_892FDE592A2950F6B2E4F63F4DCEE693" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Hierarchy [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_892FDE592A2950F6B2E4F63F4DCEE693" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_892FDE592A2950F6B2E4F63F4DCEE693" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_892FDE592A2950F6B2E4F63F4DCEE693" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsLevel3Member_CC7195C370BE8539456F759877F45CD2_verboseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel3Member_DC482DF2FDF553EC823660BD8D108CC6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Level 3</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel3Member_CC7195C370BE8539456F759877F45CD2_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel3Member_DC482DF2FDF553EC823660BD8D108CC6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 3 [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_DC482DF2FDF553EC823660BD8D108CC6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel3Member_DC482DF2FDF553EC823660BD8D108CC6" xlink:to="lab_us-gaap_FairValueInputsLevel3Member_DC482DF2FDF553EC823660BD8D108CC6" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueByMeasurementFrequencyAxis_2E15E699BDD5C3AB0F3E759877F4193A_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementFrequencyAxis_C3591154E1875F76A8DF854BEFAB8385" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value by Measurement Frequency [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByMeasurementFrequencyAxis_2E15E699BDD5C3AB0F3E759877F4193A_label_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementFrequencyAxis_C3591154E1875F76A8DF854BEFAB8385" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Frequency [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_C3591154E1875F76A8DF854BEFAB8385" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_C3591154E1875F76A8DF854BEFAB8385" xlink:to="lab_us-gaap_FairValueByMeasurementFrequencyAxis_C3591154E1875F76A8DF854BEFAB8385" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueMeasurementFrequencyDomain_6FA9C8E3696C1281966A759877F5978F_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementFrequencyDomain_F940E01A352C53D7A4A31CF950CD1D36" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement Frequency [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementFrequencyDomain_6FA9C8E3696C1281966A759877F5978F_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementFrequencyDomain_F940E01A352C53D7A4A31CF950CD1D36" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement Frequency [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_F940E01A352C53D7A4A31CF950CD1D36" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_F940E01A352C53D7A4A31CF950CD1D36" xlink:to="lab_us-gaap_FairValueMeasurementFrequencyDomain_F940E01A352C53D7A4A31CF950CD1D36" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueMeasurementsNonrecurringMember_03066F7CAEBC3C29D960759877F555DC_verboseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsNonrecurringMember_278D277624A155328E0AF7CB56AABC9B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Nonrecurring Measurements</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsNonrecurringMember_03066F7CAEBC3C29D960759877F555DC_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsNonrecurringMember_278D277624A155328E0AF7CB56AABC9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurements, Nonrecurring [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsNonrecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsNonrecurringMember_278D277624A155328E0AF7CB56AABC9B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsNonrecurringMember_278D277624A155328E0AF7CB56AABC9B" xlink:to="lab_us-gaap_FairValueMeasurementsNonrecurringMember_278D277624A155328E0AF7CB56AABC9B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems_861148CAFB82E7F0F3BD759877F5A9E0_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems_A8EE033E081754DBBB4BE9FF37D28D9C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Quantitative Information About Level 3 Fair Value Measurements</link:label>
    <link:label id="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems_861148CAFB82E7F0F3BD759877F5A9E0_label_en-US" xlink:label="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems_A8EE033E081754DBBB4BE9FF37D28D9C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Inputs, Assets, Quantitative Information [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems" xlink:label="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems_A8EE033E081754DBBB4BE9FF37D28D9C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems_A8EE033E081754DBBB4BE9FF37D28D9C" xlink:to="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationLineItems_A8EE033E081754DBBB4BE9FF37D28D9C" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsFairValueDisclosure_88BD0B676A8748FABD42759877F5695C_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure_CE455FEEF3E7570DAA5453A3E0F926C0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair Value</link:label>
    <link:label id="lab_us-gaap_AssetsFairValueDisclosure_88BD0B676A8748FABD42759877F5695C_label_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure_CE455FEEF3E7570DAA5453A3E0F926C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_CE455FEEF3E7570DAA5453A3E0F926C0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_CE455FEEF3E7570DAA5453A3E0F926C0" xlink:to="lab_us-gaap_AssetsFairValueDisclosure_CE455FEEF3E7570DAA5453A3E0F926C0" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsAbstract_1A090E60750E48AAAC60759877F50AB9_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsAbstract_38C5744DD74958D4B6058DD794396C14" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unobservable Inputs</link:label>
    <link:label id="lab_us-gaap_FairValueInputsAbstract_1A090E60750E48AAAC60759877F50AB9_label_en-US" xlink:label="lab_us-gaap_FairValueInputsAbstract_38C5744DD74958D4B6058DD794396C14" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Inputs [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsAbstract" xlink:label="loc_us-gaap_FairValueInputsAbstract_38C5744DD74958D4B6058DD794396C14" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsAbstract_38C5744DD74958D4B6058DD794396C14" xlink:to="lab_us-gaap_FairValueInputsAbstract_38C5744DD74958D4B6058DD794396C14" xlink:type="arc" />
    <link:label id="lab_gbci_FairValueInputsSellingCosts_569CAA0272B52B36CDF5759877F5A37B_terseLabel_en-US" xlink:label="lab_gbci_FairValueInputsSellingCosts_A7B16A8060035701A1549DB48772F277" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Selling Costs</link:label>
    <link:label id="lab_gbci_FairValueInputsSellingCosts_569CAA0272B52B36CDF5759877F5A37B_label_en-US" xlink:label="lab_gbci_FairValueInputsSellingCosts_A7B16A8060035701A1549DB48772F277" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Inputs, Selling Costs</link:label>
    <link:label id="lab_gbci_FairValueInputsSellingCosts_569CAA0272B52B36CDF5759877F5A37B_documentation_en-US" xlink:label="lab_gbci_FairValueInputsSellingCosts_A7B16A8060035701A1549DB48772F277" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage of adjustment to the observed price for estimated selling costs, used as an input to measure fair value.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FairValueInputsSellingCosts" xlink:label="loc_gbci_FairValueInputsSellingCosts_A7B16A8060035701A1549DB48772F277" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FairValueInputsSellingCosts_A7B16A8060035701A1549DB48772F277" xlink:to="lab_gbci_FairValueInputsSellingCosts_A7B16A8060035701A1549DB48772F277" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsComparabilityAdjustments_FDAD67DBEC463BE807FA759877F5C566_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsComparabilityAdjustments_7006B1932DE45FCF85341F2F74C08080" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustment to Comparables</link:label>
    <link:label id="lab_us-gaap_FairValueInputsComparabilityAdjustments_FDAD67DBEC463BE807FA759877F5C566_label_en-US" xlink:label="lab_us-gaap_FairValueInputsComparabilityAdjustments_7006B1932DE45FCF85341F2F74C08080" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Inputs, Comparability Adjustments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsComparabilityAdjustments" xlink:label="loc_us-gaap_FairValueInputsComparabilityAdjustments_7006B1932DE45FCF85341F2F74C08080" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsComparabilityAdjustments_7006B1932DE45FCF85341F2F74C08080" xlink:to="lab_us-gaap_FairValueInputsComparabilityAdjustments_7006B1932DE45FCF85341F2F74C08080" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0185EBB087DCB6A62A957598774A1605_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F05D8EFD04005762AF0B9D52BB13BBCD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0185EBB087DCB6A62A957598774A1605_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F05D8EFD04005762AF0B9D52BB13BBCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F05D8EFD04005762AF0B9D52BB13BBCD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F05D8EFD04005762AF0B9D52BB13BBCD" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_F05D8EFD04005762AF0B9D52BB13BBCD" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_3E0F5B125B2C3A1D82BD7598774A3A70_verboseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member_A61E6D4DA6615EECAFD5ADF6F3A1937D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Level 1</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_3E0F5B125B2C3A1D82BD7598774A3A70_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member_A61E6D4DA6615EECAFD5ADF6F3A1937D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_A61E6D4DA6615EECAFD5ADF6F3A1937D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel1Member_A61E6D4DA6615EECAFD5ADF6F3A1937D" xlink:to="lab_us-gaap_FairValueInputsLevel1Member_A61E6D4DA6615EECAFD5ADF6F3A1937D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_2EB7452183171ED09B5A7598774AF5A7_verboseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member_3B29A77626BE522AB5286E9D3EB99FFD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Level 2</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_2EB7452183171ED09B5A7598774AF5A7_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member_3B29A77626BE522AB5286E9D3EB99FFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_3B29A77626BE522AB5286E9D3EB99FFD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel2Member_3B29A77626BE522AB5286E9D3EB99FFD" xlink:to="lab_us-gaap_FairValueInputsLevel2Member_3B29A77626BE522AB5286E9D3EB99FFD" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_184748E412214B8BD9107598774BA19F_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_D416554FD66A5DA8A76836DFE5D0692C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_184748E412214B8BD9107598774BA19F_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_D416554FD66A5DA8A76836DFE5D0692C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_D416554FD66A5DA8A76836DFE5D0692C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_D416554FD66A5DA8A76836DFE5D0692C" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_D416554FD66A5DA8A76836DFE5D0692C" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract_3C37D623EEEDCD07533B7598774BD667_verboseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract_92F21B456282542E99A5864F07D2B79A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Assets with a recorded change from re-measuring at fair value on a non-recurring basis</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract_3C37D623EEEDCD07533B7598774BD667_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract_92F21B456282542E99A5864F07D2B79A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract_92F21B456282542E99A5864F07D2B79A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract_92F21B456282542E99A5864F07D2B79A" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisAbstract_92F21B456282542E99A5864F07D2B79A" xlink:type="arc" />
    <link:label id="lab_gbci_OtherRealEstateOwnedFairValueDisclosure_AF31D708FC1A7A66C42D7598774B134B_verboseLabel_en-US" xlink:label="lab_gbci_OtherRealEstateOwnedFairValueDisclosure_B1D82373A8D35DEBB4269C1D8187D072" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other real estate owned</link:label>
    <link:label id="lab_gbci_OtherRealEstateOwnedFairValueDisclosure_AF31D708FC1A7A66C42D7598774B134B_label_en-US" xlink:label="lab_gbci_OtherRealEstateOwnedFairValueDisclosure_B1D82373A8D35DEBB4269C1D8187D072" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Real Estate Owned Fair Value Disclosure</link:label>
    <link:label id="lab_gbci_OtherRealEstateOwnedFairValueDisclosure_AF31D708FC1A7A66C42D7598774B134B_documentation_en-US" xlink:label="lab_gbci_OtherRealEstateOwnedFairValueDisclosure_B1D82373A8D35DEBB4269C1D8187D072" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Other real estate owned fair value disclosure.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OtherRealEstateOwnedFairValueDisclosure" xlink:label="loc_gbci_OtherRealEstateOwnedFairValueDisclosure_B1D82373A8D35DEBB4269C1D8187D072" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OtherRealEstateOwnedFairValueDisclosure_B1D82373A8D35DEBB4269C1D8187D072" xlink:to="lab_gbci_OtherRealEstateOwnedFairValueDisclosure_B1D82373A8D35DEBB4269C1D8187D072" xlink:type="arc" />
    <link:label id="lab_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_A92AE37A673980D155567598774B88DF_verboseLabel_en-US" xlink:label="lab_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_51E9B286D0D6598F848FDAD9DE9A32C4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Collateral-dependent impaired loans, net of ALLL</link:label>
    <link:label id="lab_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_A92AE37A673980D155567598774B88DF_label_en-US" xlink:label="lab_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_51E9B286D0D6598F848FDAD9DE9A32C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collateral Dependent Impaired Loans Owned Fair Value Disclosure</link:label>
    <link:label id="lab_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_A92AE37A673980D155567598774B88DF_documentation_en-US" xlink:label="lab_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_51E9B286D0D6598F848FDAD9DE9A32C4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Collateral dependent impaired loans owned fair value disclosure.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure" xlink:label="loc_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_51E9B286D0D6598F848FDAD9DE9A32C4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_51E9B286D0D6598F848FDAD9DE9A32C4" xlink:to="lab_gbci_CollateralDependentImpairedLoansOwnedFairValueDisclosure_51E9B286D0D6598F848FDAD9DE9A32C4" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsFairValueDisclosure_44B764A107E0E29ED3867598774B6F8C_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure_CB5F12EF523C5104988D48AAA872CC12" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets measured at fair value on a non-recurring basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_CB5F12EF523C5104988D48AAA872CC12" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_CB5F12EF523C5104988D48AAA872CC12" xlink:to="lab_us-gaap_AssetsFairValueDisclosure_CB5F12EF523C5104988D48AAA872CC12" xlink:type="arc" />
    <link:label id="lab_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92_terseLabel_en-US" xlink:label="lab_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Marketable Securities [Table]</link:label>
    <link:label id="lab_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92_label_en-US" xlink:label="lab_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Marketable Securities [Table]</link:label>
    <link:label id="lab_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92_documentation_en-US" xlink:label="lab_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule of Marketable Securities [Table]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ScheduleofMarketableSecuritiesTable" xlink:label="loc_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92" xlink:to="lab_gbci_ScheduleofMarketableSecuritiesTable_C34F11D275DDCF28C57BB9AD3B4C2D92" xlink:type="arc" />
    <link:label id="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_80406FE5CFC65A03B3BFB9AD3B4C208E_terseLabel_en-US" xlink:label="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_80406FE5CFC65A03B3BFB9AD3B4C208E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Major Types of Debt and Equity Securities [Axis]</link:label>
    <link:label id="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_80406FE5CFC65A03B3BFB9AD3B4C208E_label_en-US" xlink:label="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_80406FE5CFC65A03B3BFB9AD3B4C208E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major Types of Debt and Equity Securities [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_80406FE5CFC65A03B3BFB9AD3B4C208E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_80406FE5CFC65A03B3BFB9AD3B4C208E" xlink:to="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_80406FE5CFC65A03B3BFB9AD3B4C208E" xlink:type="arc" />
    <link:label id="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_0148C8FA8469A7368D98B9AD3B4C960F_terseLabel_en-US" xlink:label="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_0148C8FA8469A7368D98B9AD3B4C960F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Major Types of Debt and Equity Securities [Domain]</link:label>
    <link:label id="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_0148C8FA8469A7368D98B9AD3B4C960F_label_en-US" xlink:label="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_0148C8FA8469A7368D98B9AD3B4C960F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Major Types of Debt and Equity Securities [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_0148C8FA8469A7368D98B9AD3B4C960F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_0148C8FA8469A7368D98B9AD3B4C960F" xlink:to="lab_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_0148C8FA8469A7368D98B9AD3B4C960F" xlink:type="arc" />
    <link:label id="lab_us-gaap_MortgageBackedSecuritiesMember_975B0569B675F7A542C5B9AD3B4CE8D3_verboseLabel_en-US" xlink:label="lab_us-gaap_MortgageBackedSecuritiesMember_975B0569B675F7A542C5B9AD3B4CE8D3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_MortgageBackedSecuritiesMember_975B0569B675F7A542C5B9AD3B4CE8D3_label_en-US" xlink:label="lab_us-gaap_MortgageBackedSecuritiesMember_975B0569B675F7A542C5B9AD3B4CE8D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collateralized Mortgage Backed Securities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MortgageBackedSecuritiesMember" xlink:label="loc_us-gaap_MortgageBackedSecuritiesMember_975B0569B675F7A542C5B9AD3B4CE8D3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MortgageBackedSecuritiesMember_975B0569B675F7A542C5B9AD3B4CE8D3" xlink:to="lab_us-gaap_MortgageBackedSecuritiesMember_975B0569B675F7A542C5B9AD3B4CE8D3" xlink:type="arc" />
    <link:label id="lab_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E_terseLabel_en-US" xlink:label="lab_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment Securities</link:label>
    <link:label id="lab_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E_label_en-US" xlink:label="lab_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Marketable Securities [Line Items]</link:label>
    <link:label id="lab_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E_documentation_en-US" xlink:label="lab_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Line Items] for Schedule of Marketable Securities [Table] [Table]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ScheduleofMarketableSecuritiesLineItems" xlink:label="loc_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E" xlink:to="lab_gbci_ScheduleofMarketableSecuritiesLineItems_53492880A8A02E0012F8B9AD3B4CEB1E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract_DCE50466BEAF3355B8E8B9AD3B4C51FD_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract_DCE50466BEAF3355B8E8B9AD3B4C51FD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-Sale</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract_DCE50466BEAF3355B8E8B9AD3B4C51FD_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract_DCE50466BEAF3355B8E8B9AD3B4C51FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract_DCE50466BEAF3355B8E8B9AD3B4C51FD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract_DCE50466BEAF3355B8E8B9AD3B4C51FD" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAbstract_DCE50466BEAF3355B8E8B9AD3B4C51FD" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_0D95ACC31B89EE29D98FB9AD3B4CEFF0_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_0D95ACC31B89EE29D98FB9AD3B4CEFF0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-Sale, Amortized Cost</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_0D95ACC31B89EE29D98FB9AD3B4CEFF0_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_0D95ACC31B89EE29D98FB9AD3B4CEFF0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_0D95ACC31B89EE29D98FB9AD3B4CEFF0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_0D95ACC31B89EE29D98FB9AD3B4CEFF0" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAmortizedCostBasisRollingMaturityAbstract_0D95ACC31B89EE29D98FB9AD3B4CEFF0" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_9076EE030DC476DCBBEFB9AD3B4C5972_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_9076EE030DC476DCBBEFB9AD3B4C5972" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due within one year</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_9076EE030DC476DCBBEFB9AD3B4C5972_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_9076EE030DC476DCBBEFB9AD3B4C5972" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_9076EE030DC476DCBBEFB9AD3B4C5972" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_9076EE030DC476DCBBEFB9AD3B4C5972" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis_9076EE030DC476DCBBEFB9AD3B4C5972" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_BE511D76096D19FA34F6B9AD3B4CB8F7_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_BE511D76096D19FA34F6B9AD3B4CB8F7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after one year through five years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_BE511D76096D19FA34F6B9AD3B4CB8F7_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_BE511D76096D19FA34F6B9AD3B4CB8F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_BE511D76096D19FA34F6B9AD3B4CB8F7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_BE511D76096D19FA34F6B9AD3B4CB8F7" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis_BE511D76096D19FA34F6B9AD3B4CB8F7" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_103F5B2C4A9DA0E66FDEB9AD3B4C7CE0_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_103F5B2C4A9DA0E66FDEB9AD3B4C7CE0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after five years through ten years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_103F5B2C4A9DA0E66FDEB9AD3B4C7CE0_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_103F5B2C4A9DA0E66FDEB9AD3B4C7CE0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Rolling Year Six Through Ten, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_103F5B2C4A9DA0E66FDEB9AD3B4C7CE0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_103F5B2C4A9DA0E66FDEB9AD3B4C7CE0" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis_103F5B2C4A9DA0E66FDEB9AD3B4C7CE0" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_E791C31B7C8049BF1CDAB9AD3B4C04F0_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_E791C31B7C8049BF1CDAB9AD3B4C04F0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after ten years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_E791C31B7C8049BF1CDAB9AD3B4C04F0_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_E791C31B7C8049BF1CDAB9AD3B4C04F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_E791C31B7C8049BF1CDAB9AD3B4C04F0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_E791C31B7C8049BF1CDAB9AD3B4C04F0" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis_E791C31B7C8049BF1CDAB9AD3B4C04F0" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_F66403BC57488B755BF3B9AD3B4C31AD_totalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_F66403BC57488B755BF3B9AD3B4C31AD" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total before mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_F66403BC57488B755BF3B9AD3B4C31AD_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_F66403BC57488B755BF3B9AD3B4C31AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_F66403BC57488B755BF3B9AD3B4C31AD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_F66403BC57488B755BF3B9AD3B4C31AD" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_F66403BC57488B755BF3B9AD3B4C31AD" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_1706AA4AB210E906DC1BB9AD3B4DF0D7_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_1706AA4AB210E906DC1BB9AD3B4DF0D7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_1706AA4AB210E906DC1BB9AD3B4DF0D7_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_1706AA4AB210E906DC1BB9AD3B4DF0D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_1706AA4AB210E906DC1BB9AD3B4DF0D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_1706AA4AB210E906DC1BB9AD3B4DF0D7" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost_1706AA4AB210E906DC1BB9AD3B4DF0D7" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4F611181DFD6B5C220D1B9AD3B4DED76_totalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4F611181DFD6B5C220D1B9AD3B4DED76" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4F611181DFD6B5C220D1B9AD3B4DED76_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4F611181DFD6B5C220D1B9AD3B4DED76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Debt Securities, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4F611181DFD6B5C220D1B9AD3B4DED76" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4F611181DFD6B5C220D1B9AD3B4DED76" xlink:to="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_4F611181DFD6B5C220D1B9AD3B4DED76" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_2CBF3924F2E90B0450E0B9AD3B4D37DB_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_2CBF3924F2E90B0450E0B9AD3B4D37DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-Sale, Fair Value</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_2CBF3924F2E90B0450E0B9AD3B4D37DB_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_2CBF3924F2E90B0450E0B9AD3B4D37DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_2CBF3924F2E90B0450E0B9AD3B4D37DB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_2CBF3924F2E90B0450E0B9AD3B4D37DB" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_2CBF3924F2E90B0450E0B9AD3B4D37DB" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_84C8966BC9752561F076B9AD3B4D2F98_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_84C8966BC9752561F076B9AD3B4D2F98" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due with one year</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_84C8966BC9752561F076B9AD3B4D2F98_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_84C8966BC9752561F076B9AD3B4D2F98" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_84C8966BC9752561F076B9AD3B4D2F98" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_84C8966BC9752561F076B9AD3B4D2F98" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_84C8966BC9752561F076B9AD3B4D2F98" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_FEA9DB123ECB1E75CD9DB9AD3B4D9012_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_FEA9DB123ECB1E75CD9DB9AD3B4D9012" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after one year through five years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_FEA9DB123ECB1E75CD9DB9AD3B4D9012_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_FEA9DB123ECB1E75CD9DB9AD3B4D9012" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_FEA9DB123ECB1E75CD9DB9AD3B4D9012" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_FEA9DB123ECB1E75CD9DB9AD3B4D9012" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_FEA9DB123ECB1E75CD9DB9AD3B4D9012" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_983C8B051FC01BEF6977B9AD3B4D94DC_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_983C8B051FC01BEF6977B9AD3B4D94DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after five years through ten years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_983C8B051FC01BEF6977B9AD3B4D94DC_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_983C8B051FC01BEF6977B9AD3B4D94DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Rolling Year Six Through Ten, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_983C8B051FC01BEF6977B9AD3B4D94DC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_983C8B051FC01BEF6977B9AD3B4D94DC" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_983C8B051FC01BEF6977B9AD3B4D94DC" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_87F8AEF435C18019E9EDB9AD3B4DFA56_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_87F8AEF435C18019E9EDB9AD3B4DFA56" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after ten years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_87F8AEF435C18019E9EDB9AD3B4DFA56_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_87F8AEF435C18019E9EDB9AD3B4DFA56" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_87F8AEF435C18019E9EDB9AD3B4DFA56" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_87F8AEF435C18019E9EDB9AD3B4DFA56" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue_87F8AEF435C18019E9EDB9AD3B4DFA56" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_8E60AAA88DBBB325A9D4B9AD3B4D0914_totalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_8E60AAA88DBBB325A9D4B9AD3B4D0914" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total before mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_8E60AAA88DBBB325A9D4B9AD3B4D0914_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_8E60AAA88DBBB325A9D4B9AD3B4D0914" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, Single Maturity Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_8E60AAA88DBBB325A9D4B9AD3B4D0914" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_8E60AAA88DBBB325A9D4B9AD3B4D0914" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate_8E60AAA88DBBB325A9D4B9AD3B4D0914" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_C3C87C4E4366D5780A03B9AD3B4D9CAF_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_C3C87C4E4366D5780A03B9AD3B4D9CAF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_C3C87C4E4366D5780A03B9AD3B4D9CAF_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_C3C87C4E4366D5780A03B9AD3B4D9CAF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_C3C87C4E4366D5780A03B9AD3B4D9CAF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_C3C87C4E4366D5780A03B9AD3B4D9CAF" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_C3C87C4E4366D5780A03B9AD3B4D9CAF" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_659C12EAC22D9FDA2BCCB9AD3B4DCBB0_verboseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_659C12EAC22D9FDA2BCCB9AD3B4DCBB0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_659C12EAC22D9FDA2BCCB9AD3B4DCBB0_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_659C12EAC22D9FDA2BCCB9AD3B4DCBB0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Debt Securities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_659C12EAC22D9FDA2BCCB9AD3B4DCBB0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_659C12EAC22D9FDA2BCCB9AD3B4DCBB0" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_659C12EAC22D9FDA2BCCB9AD3B4DCBB0" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract_ABCDE8DD8DEBA921E8F3B9AD3B4D27A0_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract_ABCDE8DD8DEBA921E8F3B9AD3B4D27A0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held-to-Maturity</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract_ABCDE8DD8DEBA921E8F3B9AD3B4D27A0_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract_ABCDE8DD8DEBA921E8F3B9AD3B4D27A0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract_ABCDE8DD8DEBA921E8F3B9AD3B4D27A0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract_ABCDE8DD8DEBA921E8F3B9AD3B4D27A0" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAbstract_ABCDE8DD8DEBA921E8F3B9AD3B4D27A0" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_1F5EDA41AE74F162E95DB9AD3B4D548B_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_1F5EDA41AE74F162E95DB9AD3B4D548B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held-to-Maturity, Amortized Cost</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_1F5EDA41AE74F162E95DB9AD3B4D548B_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_1F5EDA41AE74F162E95DB9AD3B4D548B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_1F5EDA41AE74F162E95DB9AD3B4D548B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_1F5EDA41AE74F162E95DB9AD3B4D548B" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNetCarryingAmountAbstract_1F5EDA41AE74F162E95DB9AD3B4D548B" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost_D93A12807C3D94F241C2B9AD3B4D697A_terseLabel_en-US" xlink:label="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost_D93A12807C3D94F241C2B9AD3B4D697A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due within one year</link:label>
    <link:label id="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost_D93A12807C3D94F241C2B9AD3B4D697A_label_en-US" xlink:label="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost_D93A12807C3D94F241C2B9AD3B4D697A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost" xlink:label="loc_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost_D93A12807C3D94F241C2B9AD3B4D697A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost_D93A12807C3D94F241C2B9AD3B4D697A" xlink:to="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost_D93A12807C3D94F241C2B9AD3B4D697A" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost_5DEF4BC186D16417296AB9AD3B4D0A5F_terseLabel_en-US" xlink:label="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost_5DEF4BC186D16417296AB9AD3B4D0A5F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after one year through five years</link:label>
    <link:label id="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost_5DEF4BC186D16417296AB9AD3B4D0A5F_label_en-US" xlink:label="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost_5DEF4BC186D16417296AB9AD3B4D0A5F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Rolling Year Two Through Five, Amortized Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost" xlink:label="loc_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost_5DEF4BC186D16417296AB9AD3B4D0A5F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost_5DEF4BC186D16417296AB9AD3B4D0A5F" xlink:to="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost_5DEF4BC186D16417296AB9AD3B4D0A5F" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost_FED3744BD5F0DD8FDAC4B9AD3B4E72B6_terseLabel_en-US" xlink:label="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost_FED3744BD5F0DD8FDAC4B9AD3B4E72B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after five years through ten years</link:label>
    <link:label id="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost_FED3744BD5F0DD8FDAC4B9AD3B4E72B6_label_en-US" xlink:label="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost_FED3744BD5F0DD8FDAC4B9AD3B4E72B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Rolling Year Six Through Ten, Amortized Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost" xlink:label="loc_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost_FED3744BD5F0DD8FDAC4B9AD3B4E72B6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost_FED3744BD5F0DD8FDAC4B9AD3B4E72B6" xlink:to="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost_FED3744BD5F0DD8FDAC4B9AD3B4E72B6" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost_40BBF747B9F3E84BAE9EB9AD3B4E6569_terseLabel_en-US" xlink:label="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost_40BBF747B9F3E84BAE9EB9AD3B4E6569" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after ten years</link:label>
    <link:label id="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost_40BBF747B9F3E84BAE9EB9AD3B4E6569_label_en-US" xlink:label="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost_40BBF747B9F3E84BAE9EB9AD3B4E6569" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Rolling after Ten Years, Amortized Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost" xlink:label="loc_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost_40BBF747B9F3E84BAE9EB9AD3B4E6569" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost_40BBF747B9F3E84BAE9EB9AD3B4E6569" xlink:to="lab_us-gaap_HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost_40BBF747B9F3E84BAE9EB9AD3B4E6569" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_83BC888B13D0F6F54E23B9AD3B4E2261_totalLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_83BC888B13D0F6F54E23B9AD3B4E2261" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total before mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_83BC888B13D0F6F54E23B9AD3B4E2261_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_83BC888B13D0F6F54E23B9AD3B4E2261" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_83BC888B13D0F6F54E23B9AD3B4E2261" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_83BC888B13D0F6F54E23B9AD3B4E2261" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis_83BC888B13D0F6F54E23B9AD3B4E2261" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount_61071DC5CEB65BCB7D3DB9AD3B4E9CD1_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount_61071DC5CEB65BCB7D3DB9AD3B4E9CD1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount_61071DC5CEB65BCB7D3DB9AD3B4E9CD1_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount_61071DC5CEB65BCB7D3DB9AD3B4E9CD1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, without Single Maturity Date, Net Carrying Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount_61071DC5CEB65BCB7D3DB9AD3B4E9CD1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount_61071DC5CEB65BCB7D3DB9AD3B4E9CD1" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateNetCarryingAmount_61071DC5CEB65BCB7D3DB9AD3B4E9CD1" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecurities_989C17CD201C51453722B9AD3B4E9019_verboseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecurities_989C17CD201C51453722B9AD3B4E9019" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Amortized Cost</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecurities_989C17CD201C51453722B9AD3B4E9019_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecurities_989C17CD201C51453722B9AD3B4E9019" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="loc_us-gaap_HeldToMaturitySecurities_989C17CD201C51453722B9AD3B4E9019" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecurities_989C17CD201C51453722B9AD3B4E9019" xlink:to="lab_us-gaap_HeldToMaturitySecurities_989C17CD201C51453722B9AD3B4E9019" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_D2EC8420A71E57A24F44B9AD3B4E4A40_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_D2EC8420A71E57A24F44B9AD3B4E4A40" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held-to-Maturity, Fair Value</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_D2EC8420A71E57A24F44B9AD3B4E4A40_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_D2EC8420A71E57A24F44B9AD3B4E4A40" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueRollingMaturityAbstract" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_D2EC8420A71E57A24F44B9AD3B4E4A40" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_D2EC8420A71E57A24F44B9AD3B4E4A40" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValueRollingMaturityAbstract_D2EC8420A71E57A24F44B9AD3B4E4A40" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_869F5291E120260421AEB9AD3B4EBF7A_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_869F5291E120260421AEB9AD3B4EBF7A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due within one year</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_869F5291E120260421AEB9AD3B4EBF7A_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_869F5291E120260421AEB9AD3B4EBF7A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Next Rolling Twelve Months, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_869F5291E120260421AEB9AD3B4EBF7A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_869F5291E120260421AEB9AD3B4EBF7A" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue_869F5291E120260421AEB9AD3B4EBF7A" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_A478FA5E7688614CAE19B9AD3B4EF1A9_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_A478FA5E7688614CAE19B9AD3B4EF1A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after one year through five years</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_A478FA5E7688614CAE19B9AD3B4EF1A9_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_A478FA5E7688614CAE19B9AD3B4EF1A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Rolling Year Two Through Five, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_A478FA5E7688614CAE19B9AD3B4EF1A9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_A478FA5E7688614CAE19B9AD3B4EF1A9" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue_A478FA5E7688614CAE19B9AD3B4EF1A9" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_1863F102F80C05953499B9AD3B4E3552_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_1863F102F80C05953499B9AD3B4E3552" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after five years through ten years</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_1863F102F80C05953499B9AD3B4E3552_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_1863F102F80C05953499B9AD3B4E3552" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Rolling Year Six Through Ten, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_1863F102F80C05953499B9AD3B4E3552" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_1863F102F80C05953499B9AD3B4E3552" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue_1863F102F80C05953499B9AD3B4E3552" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue_217022691BC92BE4296CB9AD3B4E43ED_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue_217022691BC92BE4296CB9AD3B4E43ED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Due after ten years</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue_217022691BC92BE4296CB9AD3B4E43ED_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue_217022691BC92BE4296CB9AD3B4E43ED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Rolling after Ten Years, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue_217022691BC92BE4296CB9AD3B4E43ED" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue_217022691BC92BE4296CB9AD3B4E43ED" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue_217022691BC92BE4296CB9AD3B4E43ED" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_9661F85E4D1F6B87C6C7B9AD3B4E2B2F_totalLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_9661F85E4D1F6B87C6C7B9AD3B4E2B2F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total before mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_9661F85E4D1F6B87C6C7B9AD3B4E2B2F_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_9661F85E4D1F6B87C6C7B9AD3B4E2B2F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_9661F85E4D1F6B87C6C7B9AD3B4E2B2F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_9661F85E4D1F6B87C6C7B9AD3B4E2B2F" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue_9661F85E4D1F6B87C6C7B9AD3B4E2B2F" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_5F60CE2BD1C46BD3E963B9AD3B4E2833_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_5F60CE2BD1C46BD3E963B9AD3B4E2833" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mortgage-backed securities</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_5F60CE2BD1C46BD3E963B9AD3B4E2833_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_5F60CE2BD1C46BD3E963B9AD3B4E2833" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Debt Maturities, without Single Maturity Date, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_5F60CE2BD1C46BD3E963B9AD3B4E2833" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_5F60CE2BD1C46BD3E963B9AD3B4E2833" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue_5F60CE2BD1C46BD3E963B9AD3B4E2833" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesFairValue_93FD35704FF4042B82C1B9AD3B4E25F6_verboseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesFairValue_93FD35704FF4042B82C1B9AD3B4E25F6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesFairValue_93FD35704FF4042B82C1B9AD3B4E25F6_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesFairValue_93FD35704FF4042B82C1B9AD3B4E25F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_93FD35704FF4042B82C1B9AD3B4E25F6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_93FD35704FF4042B82C1B9AD3B4E25F6" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesFairValue_93FD35704FF4042B82C1B9AD3B4E25F6" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_233F87015BA9811A29C8B433B4FEEB26_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_233F87015BA9811A29C8B433B4FEEB26" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_233F87015BA9811A29C8B433B4FEEB26_label_en-US" xlink:label="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_233F87015BA9811A29C8B433B4FEEB26" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable" xlink:label="loc_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_233F87015BA9811A29C8B433B4FEEB26" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_233F87015BA9811A29C8B433B4FEEB26" xlink:to="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTable_233F87015BA9811A29C8B433B4FEEB26" xlink:type="arc" />
    <link:label id="lab_dei_LegalEntityAxis_E3E4143E6E1D011BC0E0B433B4FF8A33_terseLabel_en-US" xlink:label="lab_dei_LegalEntityAxis_E3E4143E6E1D011BC0E0B433B4FF8A33" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:label id="lab_dei_LegalEntityAxis_E3E4143E6E1D011BC0E0B433B4FF8A33_label_en-US" xlink:label="lab_dei_LegalEntityAxis_E3E4143E6E1D011BC0E0B433B4FF8A33" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_E3E4143E6E1D011BC0E0B433B4FF8A33" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis_E3E4143E6E1D011BC0E0B433B4FF8A33" xlink:to="lab_dei_LegalEntityAxis_E3E4143E6E1D011BC0E0B433B4FF8A33" xlink:type="arc" />
    <link:label id="lab_dei_EntityDomain_00BAA74F35F53D9D5727B433B4FFC925_terseLabel_en-US" xlink:label="lab_dei_EntityDomain_00BAA74F35F53D9D5727B433B4FFC925" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity [Domain]</link:label>
    <link:label id="lab_dei_EntityDomain_00BAA74F35F53D9D5727B433B4FFC925_label_en-US" xlink:label="lab_dei_EntityDomain_00BAA74F35F53D9D5727B433B4FFC925" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_00BAA74F35F53D9D5727B433B4FFC925" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain_00BAA74F35F53D9D5727B433B4FFC925" xlink:to="lab_dei_EntityDomain_00BAA74F35F53D9D5727B433B4FFC925" xlink:type="arc" />
    <link:label id="lab_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A_verboseLabel_en-US" xlink:label="lab_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Glacier Bank</link:label>
    <link:label id="lab_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A_label_en-US" xlink:label="lab_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Glacier Bank [Member]</link:label>
    <link:label id="lab_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A_documentation_en-US" xlink:label="lab_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Glacier Bank</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_GlacierBankMember" xlink:label="loc_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A" xlink:to="lab_gbci_GlacierBankMember_D246667789701A89F875B433B4FFCD5A" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_A2AC9468D252A5ACA129B433B4FFC296_terseLabel_en-US" xlink:label="lab_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_A2AC9468D252A5ACA129B433B4FFC296" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Capital</link:label>
    <link:label id="lab_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_A2AC9468D252A5ACA129B433B4FFC296_label_en-US" xlink:label="lab_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_A2AC9468D252A5ACA129B433B4FFC296" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems" xlink:label="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_A2AC9468D252A5ACA129B433B4FFC296" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_A2AC9468D252A5ACA129B433B4FFC296" xlink:to="lab_us-gaap_ComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsLineItems_A2AC9468D252A5ACA129B433B4FFC296" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalAbstract_B933ACC68844D8E5340AB433B4FFF811_verboseLabel_en-US" xlink:label="lab_us-gaap_CapitalAbstract_B933ACC68844D8E5340AB433B4FFF811" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total capital (to risk-weighted assets)</link:label>
    <link:label id="lab_us-gaap_CapitalAbstract_B933ACC68844D8E5340AB433B4FFF811_label_en-US" xlink:label="lab_us-gaap_CapitalAbstract_B933ACC68844D8E5340AB433B4FFF811" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalAbstract" xlink:label="loc_us-gaap_CapitalAbstract_B933ACC68844D8E5340AB433B4FFF811" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalAbstract_B933ACC68844D8E5340AB433B4FFF811" xlink:to="lab_us-gaap_CapitalAbstract_B933ACC68844D8E5340AB433B4FFF811" xlink:type="arc" />
    <link:label id="lab_us-gaap_Capital_71A680160B24AF29E47FB433B4FFE583_verboseLabel_en-US" xlink:label="lab_us-gaap_Capital_71A680160B24AF29E47FB433B4FFE583" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Actual, Amount</link:label>
    <link:label id="lab_us-gaap_Capital_71A680160B24AF29E47FB433B4FFE583_label_en-US" xlink:label="lab_us-gaap_Capital_71A680160B24AF29E47FB433B4FFE583" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Capital" xlink:label="loc_us-gaap_Capital_71A680160B24AF29E47FB433B4FFE583" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Capital_71A680160B24AF29E47FB433B4FFE583" xlink:to="lab_us-gaap_Capital_71A680160B24AF29E47FB433B4FFE583" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalToRiskWeightedAssets_9ACEFDD80B248CE9F02CB433B4FF3327_verboseLabel_en-US" xlink:label="lab_us-gaap_CapitalToRiskWeightedAssets_9ACEFDD80B248CE9F02CB433B4FF3327" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Actual, Ratio</link:label>
    <link:label id="lab_us-gaap_CapitalToRiskWeightedAssets_9ACEFDD80B248CE9F02CB433B4FF3327_label_en-US" xlink:label="lab_us-gaap_CapitalToRiskWeightedAssets_9ACEFDD80B248CE9F02CB433B4FF3327" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital to Risk Weighted Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalToRiskWeightedAssets" xlink:label="loc_us-gaap_CapitalToRiskWeightedAssets_9ACEFDD80B248CE9F02CB433B4FF3327" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalToRiskWeightedAssets_9ACEFDD80B248CE9F02CB433B4FF3327" xlink:to="lab_us-gaap_CapitalToRiskWeightedAssets_9ACEFDD80B248CE9F02CB433B4FF3327" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalRequiredForCapitalAdequacy_F3BFA051C10AFF1DF54FB433B5003192_verboseLabel_en-US" xlink:label="lab_us-gaap_CapitalRequiredForCapitalAdequacy_F3BFA051C10AFF1DF54FB433B5003192" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Minimum capital requirement, Amount</link:label>
    <link:label id="lab_us-gaap_CapitalRequiredForCapitalAdequacy_F3BFA051C10AFF1DF54FB433B5003192_label_en-US" xlink:label="lab_us-gaap_CapitalRequiredForCapitalAdequacy_F3BFA051C10AFF1DF54FB433B5003192" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Required for Capital Adequacy</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalRequiredForCapitalAdequacy" xlink:label="loc_us-gaap_CapitalRequiredForCapitalAdequacy_F3BFA051C10AFF1DF54FB433B5003192" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalRequiredForCapitalAdequacy_F3BFA051C10AFF1DF54FB433B5003192" xlink:to="lab_us-gaap_CapitalRequiredForCapitalAdequacy_F3BFA051C10AFF1DF54FB433B5003192" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_D705B60D7EA11F594E30B433B50060EC_verboseLabel_en-US" xlink:label="lab_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_D705B60D7EA11F594E30B433B50060EC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Minimum capital requirement, Ratio</link:label>
    <link:label id="lab_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_D705B60D7EA11F594E30B433B50060EC_label_en-US" xlink:label="lab_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_D705B60D7EA11F594E30B433B50060EC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Required for Capital Adequacy to Risk Weighted Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xlink:label="loc_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_D705B60D7EA11F594E30B433B50060EC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_D705B60D7EA11F594E30B433B50060EC" xlink:to="lab_us-gaap_CapitalRequiredForCapitalAdequacyToRiskWeightedAssets_D705B60D7EA11F594E30B433B50060EC" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalRequiredToBeWellCapitalized_4D6456E447BF58FDA962B433B500A018_verboseLabel_en-US" xlink:label="lab_us-gaap_CapitalRequiredToBeWellCapitalized_4D6456E447BF58FDA962B433B500A018" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Well capitalized requirement, Amount</link:label>
    <link:label id="lab_us-gaap_CapitalRequiredToBeWellCapitalized_4D6456E447BF58FDA962B433B500A018_label_en-US" xlink:label="lab_us-gaap_CapitalRequiredToBeWellCapitalized_4D6456E447BF58FDA962B433B500A018" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Required to be Well Capitalized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalRequiredToBeWellCapitalized" xlink:label="loc_us-gaap_CapitalRequiredToBeWellCapitalized_4D6456E447BF58FDA962B433B500A018" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalRequiredToBeWellCapitalized_4D6456E447BF58FDA962B433B500A018" xlink:to="lab_us-gaap_CapitalRequiredToBeWellCapitalized_4D6456E447BF58FDA962B433B500A018" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_ECA9FBC4FE7A4627FFE4B433B5000D80_verboseLabel_en-US" xlink:label="lab_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_ECA9FBC4FE7A4627FFE4B433B5000D80" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Well capitalized requirement, Ratio</link:label>
    <link:label id="lab_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_ECA9FBC4FE7A4627FFE4B433B5000D80_label_en-US" xlink:label="lab_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_ECA9FBC4FE7A4627FFE4B433B5000D80" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Required to be Well Capitalized to Risk Weighted Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xlink:label="loc_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_ECA9FBC4FE7A4627FFE4B433B5000D80" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_ECA9FBC4FE7A4627FFE4B433B5000D80" xlink:to="lab_us-gaap_CapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_ECA9FBC4FE7A4627FFE4B433B5000D80" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalAbstract_D5800237563A07018E8CB433B5004A5C_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalAbstract_D5800237563A07018E8CB433B5004A5C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Tier 1 capital (to risk-weighted assets)</link:label>
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalAbstract_D5800237563A07018E8CB433B5004A5C_label_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalAbstract_D5800237563A07018E8CB433B5004A5C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Risk Based Capital [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalAbstract" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalAbstract_D5800237563A07018E8CB433B5004A5C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneRiskBasedCapitalAbstract_D5800237563A07018E8CB433B5004A5C" xlink:to="lab_us-gaap_TierOneRiskBasedCapitalAbstract_D5800237563A07018E8CB433B5004A5C" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneRiskBasedCapital_6C41F3EA3C1CA76E3AECB433B5003EB0_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapital_6C41F3EA3C1CA76E3AECB433B5003EB0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Actual, Amount</link:label>
    <link:label id="lab_us-gaap_TierOneRiskBasedCapital_6C41F3EA3C1CA76E3AECB433B5003EB0_label_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapital_6C41F3EA3C1CA76E3AECB433B5003EB0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Risk Based Capital</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapital" xlink:label="loc_us-gaap_TierOneRiskBasedCapital_6C41F3EA3C1CA76E3AECB433B5003EB0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneRiskBasedCapital_6C41F3EA3C1CA76E3AECB433B5003EB0" xlink:to="lab_us-gaap_TierOneRiskBasedCapital_6C41F3EA3C1CA76E3AECB433B5003EB0" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_0B08E14A4E7C00A622C0B433B5009552_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_0B08E14A4E7C00A622C0B433B5009552" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Actual, Ratio</link:label>
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_0B08E14A4E7C00A622C0B433B5009552_label_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_0B08E14A4E7C00A622C0B433B5009552" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Risk Based Capital to Risk Weighted Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_0B08E14A4E7C00A622C0B433B5009552" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_0B08E14A4E7C00A622C0B433B5009552" xlink:to="lab_us-gaap_TierOneRiskBasedCapitalToRiskWeightedAssets_0B08E14A4E7C00A622C0B433B5009552" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_3A14FB87343210A00876B433B500D7DE_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_3A14FB87343210A00876B433B500D7DE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Minimum capital requirement, Amount</link:label>
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_3A14FB87343210A00876B433B500D7DE_label_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_3A14FB87343210A00876B433B500D7DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Risk Based Capital Required for Capital Adequacy</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_3A14FB87343210A00876B433B500D7DE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_3A14FB87343210A00876B433B500D7DE" xlink:to="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacy_3A14FB87343210A00876B433B500D7DE" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_A74059CB818A1EEA2949B433B50130A7_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_A74059CB818A1EEA2949B433B50130A7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Minimum capital requirement, Ratio</link:label>
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_A74059CB818A1EEA2949B433B50130A7_label_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_A74059CB818A1EEA2949B433B50130A7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_A74059CB818A1EEA2949B433B50130A7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_A74059CB818A1EEA2949B433B50130A7" xlink:to="lab_us-gaap_TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets_A74059CB818A1EEA2949B433B50130A7" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_CA17EE77AE09CC0FB7BDB433B50144ED_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_CA17EE77AE09CC0FB7BDB433B50144ED" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Well capitalized requirement, Amount</link:label>
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_CA17EE77AE09CC0FB7BDB433B50144ED_label_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_CA17EE77AE09CC0FB7BDB433B50144ED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Risk Based Capital Required to be Well Capitalized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_CA17EE77AE09CC0FB7BDB433B50144ED" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_CA17EE77AE09CC0FB7BDB433B50144ED" xlink:to="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalized_CA17EE77AE09CC0FB7BDB433B50144ED" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_EA4FFB361E00C18F9278B433B501A8DB_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_EA4FFB361E00C18F9278B433B501A8DB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Well capitalized requirement, Ratio</link:label>
    <link:label id="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_EA4FFB361E00C18F9278B433B501A8DB_label_en-US" xlink:label="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_EA4FFB361E00C18F9278B433B501A8DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" xlink:label="loc_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_EA4FFB361E00C18F9278B433B501A8DB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_EA4FFB361E00C18F9278B433B501A8DB" xlink:to="lab_us-gaap_TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets_EA4FFB361E00C18F9278B433B501A8DB" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonEquityTierOneCapitalAbstract_12640812702E6BBB1250B4494D3CCC89_terseLabel_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapitalAbstract_12640812702E6BBB1250B4494D3CCC89" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common Equity Tier 1 (to risk-weighted assets)</link:label>
    <link:label id="lab_us-gaap_CommonEquityTierOneCapitalAbstract_12640812702E6BBB1250B4494D3CCC89_label_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapitalAbstract_12640812702E6BBB1250B4494D3CCC89" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Equity Tier One Capital [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonEquityTierOneCapitalAbstract" xlink:label="loc_us-gaap_CommonEquityTierOneCapitalAbstract_12640812702E6BBB1250B4494D3CCC89" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonEquityTierOneCapitalAbstract_12640812702E6BBB1250B4494D3CCC89" xlink:to="lab_us-gaap_CommonEquityTierOneCapitalAbstract_12640812702E6BBB1250B4494D3CCC89" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonEquityTierOneCapital_D653F22C6C6F2FD02060B4449E2DF5A0_terseLabel_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapital_D653F22C6C6F2FD02060B4449E2DF5A0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Actual, Amount</link:label>
    <link:label id="lab_us-gaap_CommonEquityTierOneCapital_D653F22C6C6F2FD02060B4449E2DF5A0_label_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapital_D653F22C6C6F2FD02060B4449E2DF5A0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Equity Tier One Capital</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonEquityTierOneCapital" xlink:label="loc_us-gaap_CommonEquityTierOneCapital_D653F22C6C6F2FD02060B4449E2DF5A0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonEquityTierOneCapital_D653F22C6C6F2FD02060B4449E2DF5A0" xlink:to="lab_us-gaap_CommonEquityTierOneCapital_D653F22C6C6F2FD02060B4449E2DF5A0" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonEquityTierOneCapitalRatio_3E6BE995DF8C4ACBBEA8B447AEE8C1C7_terseLabel_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapitalRatio_3E6BE995DF8C4ACBBEA8B447AEE8C1C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Actual, Ratio</link:label>
    <link:label id="lab_us-gaap_CommonEquityTierOneCapitalRatio_3E6BE995DF8C4ACBBEA8B447AEE8C1C7_label_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapitalRatio_3E6BE995DF8C4ACBBEA8B447AEE8C1C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Equity Tier One Capital Ratio</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonEquityTierOneCapitalRatio" xlink:label="loc_us-gaap_CommonEquityTierOneCapitalRatio_3E6BE995DF8C4ACBBEA8B447AEE8C1C7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonEquityTierOneCapitalRatio_3E6BE995DF8C4ACBBEA8B447AEE8C1C7" xlink:to="lab_us-gaap_CommonEquityTierOneCapitalRatio_3E6BE995DF8C4ACBBEA8B447AEE8C1C7" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy_C9D4C498D6BBA4552B50B445BBD60706_terseLabel_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy_C9D4C498D6BBA4552B50B445BBD60706" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum capital requirement, Amount</link:label>
    <link:label id="lab_us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy_C9D4C498D6BBA4552B50B445BBD60706_label_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy_C9D4C498D6BBA4552B50B445BBD60706" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Equity Tier One Capital Required for Capital Adequacy</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy" xlink:label="loc_us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy_C9D4C498D6BBA4552B50B445BBD60706" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy_C9D4C498D6BBA4552B50B445BBD60706" xlink:to="lab_us-gaap_CommonEquityTierOneCapitalRequiredForCapitalAdequacy_C9D4C498D6BBA4552B50B445BBD60706" xlink:type="arc" />
    <link:label id="lab_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47_terseLabel_en-US" xlink:label="lab_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum capital requirement, Ratio</link:label>
    <link:label id="lab_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47_label_en-US" xlink:label="lab_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Common Capital Required for Capital Adequacy to Risk Weighted Assets</link:label>
    <link:label id="lab_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47_documentation_en-US" xlink:label="lab_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The minimum Tier One Common Capital Ratio (Tier one common capital divided by risk-weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets" xlink:label="loc_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47" xlink:to="lab_gbci_TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets_EDA895462AF13B15EF0FB433B501EE47" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized_495BE8FEEF53E35FBB5BB4464040262D_terseLabel_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized_495BE8FEEF53E35FBB5BB4464040262D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Well capitalized requirement, Amount</link:label>
    <link:label id="lab_us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized_495BE8FEEF53E35FBB5BB4464040262D_label_en-US" xlink:label="lab_us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized_495BE8FEEF53E35FBB5BB4464040262D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Equity Tier One Capital Required to be Well-Capitalized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized" xlink:label="loc_us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized_495BE8FEEF53E35FBB5BB4464040262D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized_495BE8FEEF53E35FBB5BB4464040262D" xlink:to="lab_us-gaap_CommonEquityTierOneCapitalRequiredToBeWellCapitalized_495BE8FEEF53E35FBB5BB4464040262D" xlink:type="arc" />
    <link:label id="lab_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C_terseLabel_en-US" xlink:label="lab_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Well capitalized requirement, Ratio</link:label>
    <link:label id="lab_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C_label_en-US" xlink:label="lab_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Common Capital Required to be Well Capitalized to Risk Weighted Assets</link:label>
    <link:label id="lab_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C_documentation_en-US" xlink:label="lab_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The Tier 1 common capital ratio (Tier 1 common capital divided by risk weighted assets) required to be categorized as "well capitalized" under the regulatory framework for prompt corrective action.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets" xlink:label="loc_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C" xlink:to="lab_gbci_TierOneCommonCapitalRequiredtobeWellCapitalizedtoRiskWeightedAssets_ADFDCFB8F9E762DCDE66B433B506124C" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneLeverageCapitalAbstract_73C0E96C5A96DECA8B19B433B50713B5_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalAbstract_73C0E96C5A96DECA8B19B433B50713B5" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Tier 1 capital (to average assets)</link:label>
    <link:label id="lab_us-gaap_TierOneLeverageCapitalAbstract_73C0E96C5A96DECA8B19B433B50713B5_label_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalAbstract_73C0E96C5A96DECA8B19B433B50713B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Leverage Capital [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalAbstract" xlink:label="loc_us-gaap_TierOneLeverageCapitalAbstract_73C0E96C5A96DECA8B19B433B50713B5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneLeverageCapitalAbstract_73C0E96C5A96DECA8B19B433B50713B5" xlink:to="lab_us-gaap_TierOneLeverageCapitalAbstract_73C0E96C5A96DECA8B19B433B50713B5" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneLeverageCapital_DB7A83D0A72139655E78B433B5074FF3_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapital_DB7A83D0A72139655E78B433B5074FF3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Actual, Amount</link:label>
    <link:label id="lab_us-gaap_TierOneLeverageCapital_DB7A83D0A72139655E78B433B5074FF3_label_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapital_DB7A83D0A72139655E78B433B5074FF3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Leverage Capital</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapital" xlink:label="loc_us-gaap_TierOneLeverageCapital_DB7A83D0A72139655E78B433B5074FF3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneLeverageCapital_DB7A83D0A72139655E78B433B5074FF3" xlink:to="lab_us-gaap_TierOneLeverageCapital_DB7A83D0A72139655E78B433B5074FF3" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneLeverageCapitalToAverageAssets_D274F0B203745B458C7DB433B50741AD_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalToAverageAssets_D274F0B203745B458C7DB433B50741AD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Actual, Ratio</link:label>
    <link:label id="lab_us-gaap_TierOneLeverageCapitalToAverageAssets_D274F0B203745B458C7DB433B50741AD_label_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalToAverageAssets_D274F0B203745B458C7DB433B50741AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Leverage Capital to Average Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalToAverageAssets" xlink:label="loc_us-gaap_TierOneLeverageCapitalToAverageAssets_D274F0B203745B458C7DB433B50741AD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneLeverageCapitalToAverageAssets_D274F0B203745B458C7DB433B50741AD" xlink:to="lab_us-gaap_TierOneLeverageCapitalToAverageAssets_D274F0B203745B458C7DB433B50741AD" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_BE5BE7FB9AE014600E49B433B5076C96_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_BE5BE7FB9AE014600E49B433B5076C96" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Minimum capital requirement, Amount</link:label>
    <link:label id="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_BE5BE7FB9AE014600E49B433B5076C96_label_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_BE5BE7FB9AE014600E49B433B5076C96" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Leverage Capital Required for Capital Adequacy</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy" xlink:label="loc_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_BE5BE7FB9AE014600E49B433B5076C96" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_BE5BE7FB9AE014600E49B433B5076C96" xlink:to="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacy_BE5BE7FB9AE014600E49B433B5076C96" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_495843D239B2FD7D7505B433B5077CE2_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_495843D239B2FD7D7505B433B5077CE2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Minimum capital requirement, Ratio</link:label>
    <link:label id="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_495843D239B2FD7D7505B433B5077CE2_label_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_495843D239B2FD7D7505B433B5077CE2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Leverage Capital Required for Capital Adequacy to Average Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets" xlink:label="loc_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_495843D239B2FD7D7505B433B5077CE2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_495843D239B2FD7D7505B433B5077CE2" xlink:to="lab_us-gaap_TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets_495843D239B2FD7D7505B433B5077CE2" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_3CA36FBBD7292731F6F9B433B507D705_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_3CA36FBBD7292731F6F9B433B507D705" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Well capitalized requirement, Amount</link:label>
    <link:label id="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_3CA36FBBD7292731F6F9B433B507D705_label_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_3CA36FBBD7292731F6F9B433B507D705" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Leverage Capital Required to be Well Capitalized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized" xlink:label="loc_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_3CA36FBBD7292731F6F9B433B507D705" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_3CA36FBBD7292731F6F9B433B507D705" xlink:to="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalized_3CA36FBBD7292731F6F9B433B507D705" xlink:type="arc" />
    <link:label id="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_5908BC1872BC83D166D7B433B5077FF1_verboseLabel_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_5908BC1872BC83D166D7B433B5077FF1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Well capitalized requirement, Ratio</link:label>
    <link:label id="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_5908BC1872BC83D166D7B433B5077FF1_label_en-US" xlink:label="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_5908BC1872BC83D166D7B433B5077FF1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tier One Leverage Capital Required to be Well Capitalized to Average Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets" xlink:label="loc_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_5908BC1872BC83D166D7B433B5077FF1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_5908BC1872BC83D166D7B433B5077FF1" xlink:to="lab_us-gaap_TierOneLeverageCapitalRequiredToBeWellCapitalizedToAverageAssets_5908BC1872BC83D166D7B433B5077FF1" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_7EC46A122C0408169585759878359263_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_5BE730946DFF5A3BA0698DEF7023F90E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Financing Receivables Past Due [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_7EC46A122C0408169585759878359263_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_5BE730946DFF5A3BA0698DEF7023F90E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Financing Receivables Past Due [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFinancingReceivablesPastDueTable" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_5BE730946DFF5A3BA0698DEF7023F90E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_5BE730946DFF5A3BA0698DEF7023F90E" xlink:to="lab_us-gaap_ScheduleOfFinancingReceivablesPastDueTable_5BE730946DFF5A3BA0698DEF7023F90E" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivablePortfolioSegmentAxis_534F68573F74BAAD1033759878367CE2_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivablePortfolioSegmentAxis_78DD6668A2815A3E88C75E29E7DF0797" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Receivable Portfolio Segment [Axis]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivablePortfolioSegmentAxis_534F68573F74BAAD1033759878367CE2_label_en-US" xlink:label="lab_us-gaap_FinancingReceivablePortfolioSegmentAxis_78DD6668A2815A3E88C75E29E7DF0797" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable Portfolio Segment [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentAxis" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_78DD6668A2815A3E88C75E29E7DF0797" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentAxis_78DD6668A2815A3E88C75E29E7DF0797" xlink:to="lab_us-gaap_FinancingReceivablePortfolioSegmentAxis_78DD6668A2815A3E88C75E29E7DF0797" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivablePortfolioSegmentDomain_75A246B5B2E94B7DB14475987836AB76_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivablePortfolioSegmentDomain_2105C277D8A4501C889B76EA5B11FD12" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Receivable Portfolio Segment [Domain]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivablePortfolioSegmentDomain_75A246B5B2E94B7DB14475987836AB76_label_en-US" xlink:label="lab_us-gaap_FinancingReceivablePortfolioSegmentDomain_2105C277D8A4501C889B76EA5B11FD12" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable Portfolio Segment [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablePortfolioSegmentDomain" xlink:label="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2105C277D8A4501C889B76EA5B11FD12" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivablePortfolioSegmentDomain_2105C277D8A4501C889B76EA5B11FD12" xlink:to="lab_us-gaap_FinancingReceivablePortfolioSegmentDomain_2105C277D8A4501C889B76EA5B11FD12" xlink:type="arc" />
    <link:label id="lab_us-gaap_ResidentialPortfolioSegmentMember_02979BCD442D2FC24649759878365574_terseLabel_en-US" xlink:label="lab_us-gaap_ResidentialPortfolioSegmentMember_D267946DEDD4590F808393E031A2647E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Residential Real Estate</link:label>
    <link:label id="lab_us-gaap_ResidentialPortfolioSegmentMember_02979BCD442D2FC24649759878365574_label_en-US" xlink:label="lab_us-gaap_ResidentialPortfolioSegmentMember_D267946DEDD4590F808393E031A2647E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Residential Portfolio Segment [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResidentialPortfolioSegmentMember" xlink:label="loc_us-gaap_ResidentialPortfolioSegmentMember_D267946DEDD4590F808393E031A2647E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ResidentialPortfolioSegmentMember_D267946DEDD4590F808393E031A2647E" xlink:to="lab_us-gaap_ResidentialPortfolioSegmentMember_D267946DEDD4590F808393E031A2647E" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommercialPortfolioSegmentMember_431FEAE01DE05E8349A8759878374974_terseLabel_en-US" xlink:label="lab_us-gaap_CommercialPortfolioSegmentMember_B71DE51B9F3258E3902C9AA231C0EB49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commercial</link:label>
    <link:label id="lab_us-gaap_CommercialPortfolioSegmentMember_431FEAE01DE05E8349A8759878374974_label_en-US" xlink:label="lab_us-gaap_CommercialPortfolioSegmentMember_B71DE51B9F3258E3902C9AA231C0EB49" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Portfolio Segment [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommercialPortfolioSegmentMember" xlink:label="loc_us-gaap_CommercialPortfolioSegmentMember_B71DE51B9F3258E3902C9AA231C0EB49" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommercialPortfolioSegmentMember_B71DE51B9F3258E3902C9AA231C0EB49" xlink:to="lab_us-gaap_CommercialPortfolioSegmentMember_B71DE51B9F3258E3902C9AA231C0EB49" xlink:type="arc" />
    <link:label id="lab_us-gaap_ConsumerPortfolioSegmentMember_8B05FE7E79B1EA663252759878373A44_terseLabel_en-US" xlink:label="lab_us-gaap_ConsumerPortfolioSegmentMember_84BE00E5C15156BAA204F3603F820403" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consumer and Other</link:label>
    <link:label id="lab_us-gaap_ConsumerPortfolioSegmentMember_8B05FE7E79B1EA663252759878373A44_label_en-US" xlink:label="lab_us-gaap_ConsumerPortfolioSegmentMember_84BE00E5C15156BAA204F3603F820403" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consumer Portfolio Segment [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsumerPortfolioSegmentMember" xlink:label="loc_us-gaap_ConsumerPortfolioSegmentMember_84BE00E5C15156BAA204F3603F820403" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConsumerPortfolioSegmentMember_84BE00E5C15156BAA204F3603F820403" xlink:to="lab_us-gaap_ConsumerPortfolioSegmentMember_84BE00E5C15156BAA204F3603F820403" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_B5F505C4F0A751BA5B6275987837D6D0_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_BE57724E54E05F018E424763C490EC9D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Financing Receivable [Axis]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_B5F505C4F0A751BA5B6275987837D6D0_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_BE57724E54E05F018E424763C490EC9D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Financing Receivable, Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_BE57724E54E05F018E424763C490EC9D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_BE57724E54E05F018E424763C490EC9D" xlink:to="lab_us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis_BE57724E54E05F018E424763C490EC9D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_1CBC0789000AC81FBB7575987837EA13_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_E2BC10AFBEFD5DE695001710901F7630" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Class of Financing Receivable [Domain]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_1CBC0789000AC81FBB7575987837EA13_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_E2BC10AFBEFD5DE695001710901F7630" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Financing Receivable, Type [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_E2BC10AFBEFD5DE695001710901F7630" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_E2BC10AFBEFD5DE695001710901F7630" xlink:to="lab_us-gaap_FinancingReceivableRecordedInvestmentClassOfFinancingReceivableDomain_E2BC10AFBEFD5DE695001710901F7630" xlink:type="arc" />
    <link:label id="lab_us-gaap_ResidentialRealEstateMember_B8CD61CABDDC84EDE5FD75987837C202_terseLabel_en-US" xlink:label="lab_us-gaap_ResidentialRealEstateMember_031B58AB6D605177A451B9552B8B2CDE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Residential Real Estate</link:label>
    <link:label id="lab_us-gaap_ResidentialRealEstateMember_B8CD61CABDDC84EDE5FD75987837C202_label_en-US" xlink:label="lab_us-gaap_ResidentialRealEstateMember_031B58AB6D605177A451B9552B8B2CDE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Residential Real Estate [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResidentialRealEstateMember" xlink:label="loc_us-gaap_ResidentialRealEstateMember_031B58AB6D605177A451B9552B8B2CDE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ResidentialRealEstateMember_031B58AB6D605177A451B9552B8B2CDE" xlink:to="lab_us-gaap_ResidentialRealEstateMember_031B58AB6D605177A451B9552B8B2CDE" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommercialRealEstateMember_E693457C0517DBEE32FE759878375D90_terseLabel_en-US" xlink:label="lab_us-gaap_CommercialRealEstateMember_08CE8B547F285A07B12F33C0E2D25EFA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commercial Real Estate</link:label>
    <link:label id="lab_us-gaap_CommercialRealEstateMember_E693457C0517DBEE32FE759878375D90_label_en-US" xlink:label="lab_us-gaap_CommercialRealEstateMember_08CE8B547F285A07B12F33C0E2D25EFA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Real Estate [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommercialRealEstateMember" xlink:label="loc_us-gaap_CommercialRealEstateMember_08CE8B547F285A07B12F33C0E2D25EFA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommercialRealEstateMember_08CE8B547F285A07B12F33C0E2D25EFA" xlink:to="lab_us-gaap_CommercialRealEstateMember_08CE8B547F285A07B12F33C0E2D25EFA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommercialLoanMember_C351B4565165BAA476D575987837E2BB_terseLabel_en-US" xlink:label="lab_us-gaap_CommercialLoanMember_F7010D1575D85A57B5AA7FE9E1C72577" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Commercial</link:label>
    <link:label id="lab_us-gaap_CommercialLoanMember_C351B4565165BAA476D575987837E2BB_label_en-US" xlink:label="lab_us-gaap_CommercialLoanMember_F7010D1575D85A57B5AA7FE9E1C72577" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Loan [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommercialLoanMember" xlink:label="loc_us-gaap_CommercialLoanMember_F7010D1575D85A57B5AA7FE9E1C72577" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommercialLoanMember_F7010D1575D85A57B5AA7FE9E1C72577" xlink:to="lab_us-gaap_CommercialLoanMember_F7010D1575D85A57B5AA7FE9E1C72577" xlink:type="arc" />
    <link:label id="lab_gbci_HomeEquityHomeEquityLineofCreditMember_B467CFEF51BCA46A7339759878376CF7_terseLabel_en-US" xlink:label="lab_gbci_HomeEquityHomeEquityLineofCreditMember_ECA889ECEEEF54108B7FE6F9A0100F97" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Home Equity</link:label>
    <link:label id="lab_gbci_HomeEquityHomeEquityLineofCreditMember_B467CFEF51BCA46A7339759878376CF7_label_en-US" xlink:label="lab_gbci_HomeEquityHomeEquityLineofCreditMember_ECA889ECEEEF54108B7FE6F9A0100F97" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Home Equity Home Equity Line of Credit [Member]</link:label>
    <link:label id="lab_gbci_HomeEquityHomeEquityLineofCreditMember_B467CFEF51BCA46A7339759878376CF7_documentation_en-US" xlink:label="lab_gbci_HomeEquityHomeEquityLineofCreditMember_ECA889ECEEEF54108B7FE6F9A0100F97" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loan based on the equity of the borrower's residential property.  Includes close-ended loans in which the borrower receives the loan amount upfront and revolving, open-ended loans under a line of credit.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_HomeEquityHomeEquityLineofCreditMember" xlink:label="loc_gbci_HomeEquityHomeEquityLineofCreditMember_ECA889ECEEEF54108B7FE6F9A0100F97" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_HomeEquityHomeEquityLineofCreditMember_ECA889ECEEEF54108B7FE6F9A0100F97" xlink:to="lab_gbci_HomeEquityHomeEquityLineofCreditMember_ECA889ECEEEF54108B7FE6F9A0100F97" xlink:type="arc" />
    <link:label id="lab_us-gaap_ConsumerLoanMember_20DEEC786DA63AD32B6E75987837D097_terseLabel_en-US" xlink:label="lab_us-gaap_ConsumerLoanMember_AE6288F61B2C50CFA86A6C3BDA41A185" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Consumer</link:label>
    <link:label id="lab_us-gaap_ConsumerLoanMember_20DEEC786DA63AD32B6E75987837D097_label_en-US" xlink:label="lab_us-gaap_ConsumerLoanMember_AE6288F61B2C50CFA86A6C3BDA41A185" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consumer Loan [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsumerLoanMember" xlink:label="loc_us-gaap_ConsumerLoanMember_AE6288F61B2C50CFA86A6C3BDA41A185" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConsumerLoanMember_AE6288F61B2C50CFA86A6C3BDA41A185" xlink:to="lab_us-gaap_ConsumerLoanMember_AE6288F61B2C50CFA86A6C3BDA41A185" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivablesPeriodPastDueAxis_D6B41FF9960B8C20A449759878371278_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivablesPeriodPastDueAxis_FA388EE073615479BB1FC7665DB1BF4F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Receivables, Period Past Due [Axis]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivablesPeriodPastDueAxis_D6B41FF9960B8C20A449759878371278_label_en-US" xlink:label="lab_us-gaap_FinancingReceivablesPeriodPastDueAxis_FA388EE073615479BB1FC7665DB1BF4F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables, Period Past Due [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablesPeriodPastDueAxis" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_FA388EE073615479BB1FC7665DB1BF4F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueAxis_FA388EE073615479BB1FC7665DB1BF4F" xlink:to="lab_us-gaap_FinancingReceivablesPeriodPastDueAxis_FA388EE073615479BB1FC7665DB1BF4F" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivablesPeriodPastDueDomain_711FCEE23D85A234982275987837E121_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivablesPeriodPastDueDomain_23C202F6EDCA55249C182381CE1716B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Receivables, Period Past Due [Domain]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivablesPeriodPastDueDomain_711FCEE23D85A234982275987837E121_label_en-US" xlink:label="lab_us-gaap_FinancingReceivablesPeriodPastDueDomain_23C202F6EDCA55249C182381CE1716B0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables, Period Past Due [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablesPeriodPastDueDomain" xlink:label="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_23C202F6EDCA55249C182381CE1716B0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivablesPeriodPastDueDomain_23C202F6EDCA55249C182381CE1716B0" xlink:to="lab_us-gaap_FinancingReceivablesPeriodPastDueDomain_23C202F6EDCA55249C182381CE1716B0" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivables30To59DaysPastDueMember_87B869B5A14A026FAF1D759878375CCB_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivables30To59DaysPastDueMember_C8372DCE4BEF54D3BE07E6B5F800DD6B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accruing loans 30 to 59 days past due</link:label>
    <link:label id="lab_us-gaap_FinancingReceivables30To59DaysPastDueMember_87B869B5A14A026FAF1D759878375CCB_label_en-US" xlink:label="lab_us-gaap_FinancingReceivables30To59DaysPastDueMember_C8372DCE4BEF54D3BE07E6B5F800DD6B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables, 30 to 59 Days Past Due [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivables30To59DaysPastDueMember" xlink:label="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_C8372DCE4BEF54D3BE07E6B5F800DD6B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivables30To59DaysPastDueMember_C8372DCE4BEF54D3BE07E6B5F800DD6B" xlink:to="lab_us-gaap_FinancingReceivables30To59DaysPastDueMember_C8372DCE4BEF54D3BE07E6B5F800DD6B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivables60To89DaysPastDueMember_37963FBDF5EB2F3399A0759878377E1B_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivables60To89DaysPastDueMember_D7B0FDBA376958D69F1BB7610F46EE02" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accruing loans 60 to 89 days past due</link:label>
    <link:label id="lab_us-gaap_FinancingReceivables60To89DaysPastDueMember_37963FBDF5EB2F3399A0759878377E1B_label_en-US" xlink:label="lab_us-gaap_FinancingReceivables60To89DaysPastDueMember_D7B0FDBA376958D69F1BB7610F46EE02" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables, 60 to 89 Days Past Due [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivables60To89DaysPastDueMember" xlink:label="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_D7B0FDBA376958D69F1BB7610F46EE02" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivables60To89DaysPastDueMember_D7B0FDBA376958D69F1BB7610F46EE02" xlink:to="lab_us-gaap_FinancingReceivables60To89DaysPastDueMember_D7B0FDBA376958D69F1BB7610F46EE02" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_6455BBC09B04703BFB0375987838CCE7_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_A415095A555C58929AA86089856EE58B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accruing loans 90 days or more past due</link:label>
    <link:label id="lab_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_6455BBC09B04703BFB0375987838CCE7_label_en-US" xlink:label="lab_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_A415095A555C58929AA86089856EE58B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables, Equal to Greater than 90 Days Past Due [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember" xlink:label="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_A415095A555C58929AA86089856EE58B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_A415095A555C58929AA86089856EE58B" xlink:to="lab_us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember_A415095A555C58929AA86089856EE58B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_2567F17351A9B2FF4E6875987838CFD3_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_DAA426316FCF5C97B9884D7AC1DF3E16" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Receivable, Recorded Investment, Past Due [Line Items]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_2567F17351A9B2FF4E6875987838CFD3_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_DAA426316FCF5C97B9884D7AC1DF3E16" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Recorded Investment, Past Due [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_DAA426316FCF5C97B9884D7AC1DF3E16" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_DAA426316FCF5C97B9884D7AC1DF3E16" xlink:to="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDueLineItems_DAA426316FCF5C97B9884D7AC1DF3E16" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract_7AA57B86386DE7A5B78975987838F3AC_verboseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract_C997978E35095FEDBF440BB0C139B359" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loan portfolio aging analysis</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract_7AA57B86386DE7A5B78975987838F3AC_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract_C997978E35095FEDBF440BB0C139B359" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Recorded Investment, Aging [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract_C997978E35095FEDBF440BB0C139B359" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract_C997978E35095FEDBF440BB0C139B359" xlink:to="lab_us-gaap_FinancingReceivableRecordedInvestmentAgingAbstract_C997978E35095FEDBF440BB0C139B359" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDue_96DFE26A9A778A9A8915759878388989_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDue_C815709740575556B93011D32CD2F205" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Past due loans</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDue_96DFE26A9A778A9A8915759878388989_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDue_C815709740575556B93011D32CD2F205" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Recorded Investment, Past Due</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentPastDue" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDue_C815709740575556B93011D32CD2F205" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentPastDue_C815709740575556B93011D32CD2F205" xlink:to="lab_us-gaap_FinancingReceivableRecordedInvestmentPastDue_C815709740575556B93011D32CD2F205" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_5D7EC66AA2A323ABEB6675987838EDCF_verboseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_00DC334041105DC9BDA694B7A52926BB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-accrual loans</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_5D7EC66AA2A323ABEB6675987838EDCF_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_00DC334041105DC9BDA694B7A52926BB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Recorded Investment, Nonaccrual Status</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_00DC334041105DC9BDA694B7A52926BB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_00DC334041105DC9BDA694B7A52926BB" xlink:to="lab_us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus_00DC334041105DC9BDA694B7A52926BB" xlink:type="arc" />
    <link:label id="lab_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_FCFEDA55EFD4F4D6C99D75987838664D_terseLabel_en-US" xlink:label="lab_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_E17318B80EB952CC939C0B06D6259182" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total past due and non-accrual loans</link:label>
    <link:label id="lab_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_FCFEDA55EFD4F4D6C99D75987838664D_label_en-US" xlink:label="lab_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_E17318B80EB952CC939C0B06D6259182" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable Recorded Investment Past Due and Non Accrual Loans</link:label>
    <link:label id="lab_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_FCFEDA55EFD4F4D6C99D75987838664D_documentation_en-US" xlink:label="lab_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_E17318B80EB952CC939C0B06D6259182" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financing receivable recorded investment past due and non accrual loans.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans" xlink:label="loc_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_E17318B80EB952CC939C0B06D6259182" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_E17318B80EB952CC939C0B06D6259182" xlink:to="lab_gbci_FinancingReceivableRecordedInvestmentPastDueAndNonAccrualLoans_E17318B80EB952CC939C0B06D6259182" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentCurrent_2BBFCA0FA030CBBE115F75987838E854_verboseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentCurrent_BE34D4DF36A55AECB71405E0D251A0CF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current loans receivable</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableRecordedInvestmentCurrent_2BBFCA0FA030CBBE115F75987838E854_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableRecordedInvestmentCurrent_BE34D4DF36A55AECB71405E0D251A0CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Recorded Investment, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableRecordedInvestmentCurrent" xlink:label="loc_us-gaap_FinancingReceivableRecordedInvestmentCurrent_BE34D4DF36A55AECB71405E0D251A0CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableRecordedInvestmentCurrent_BE34D4DF36A55AECB71405E0D251A0CF" xlink:to="lab_us-gaap_FinancingReceivableRecordedInvestmentCurrent_BE34D4DF36A55AECB71405E0D251A0CF" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_3E28AC5A47B600AEEC2575987838AD53_totalLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_91BEBC29BC9B51AA940FA9F65133D62A" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total loans receivable</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_3E28AC5A47B600AEEC2575987838AD53_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_91BEBC29BC9B51AA940FA9F65133D62A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable, Net of Deferred Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:label="loc_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_91BEBC29BC9B51AA940FA9F65133D62A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_91BEBC29BC9B51AA940FA9F65133D62A" xlink:to="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_91BEBC29BC9B51AA940FA9F65133D62A" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_59AC0FFC528B59F4EDC275987762FBF0_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_634D653A4F725DFE959AD940841EDF75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments and Hedging Activities Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_634D653A4F725DFE959AD940841EDF75" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_634D653A4F725DFE959AD940841EDF75" xlink:to="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_634D653A4F725DFE959AD940841EDF75" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_CEFBC29FCA42F4B0362875987762C88B_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_BB72890B20425B95A43DD3A798338350" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Derivatives and Hedging Activities</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_CEFBC29FCA42F4B0362875987762C88B_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_BB72890B20425B95A43DD3A798338350" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments and Hedging Activities Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_BB72890B20425B95A43DD3A798338350" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_BB72890B20425B95A43DD3A798338350" xlink:to="lab_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_BB72890B20425B95A43DD3A798338350" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_3B2494C80B63DB9D5395759879182BBE_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_9BBE12498941555D93361251EA444E05" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of consolidated income tax expense</link:label>
    <link:label id="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_3B2494C80B63DB9D5395759879182BBE_label_en-US" xlink:label="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_9BBE12498941555D93361251EA444E05" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_9BBE12498941555D93361251EA444E05" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_9BBE12498941555D93361251EA444E05" xlink:to="lab_us-gaap_ScheduleOfComponentsOfIncomeTaxExpenseBenefitTableTextBlock_9BBE12498941555D93361251EA444E05" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_8B2612CB718E875E9B807598791882D6_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2411176289E351CFB081B6A9A06BF7C0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of effective tax rate</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_8B2612CB718E875E9B807598791882D6_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2411176289E351CFB081B6A9A06BF7C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2411176289E351CFB081B6A9A06BF7C0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2411176289E351CFB081B6A9A06BF7C0" xlink:to="lab_us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_2411176289E351CFB081B6A9A06BF7C0" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_32FFF3FB4F2CBCD72A8975987918077E_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_5E545197BBB956D7982C31BA73F4F33E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of net deferred tax asset</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_32FFF3FB4F2CBCD72A8975987918077E_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_5E545197BBB956D7982C31BA73F4F33E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Deferred Tax Assets and Liabilities [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_5E545197BBB956D7982C31BA73F4F33E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_5E545197BBB956D7982C31BA73F4F33E" xlink:to="lab_us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_5E545197BBB956D7982C31BA73F4F33E" xlink:type="arc" />
    <link:label id="lab_us-gaap_SummaryOfIncomeTaxExaminationsTextBlock_2F95EDBB00CBE273025675987918DAE9_verboseLabel_en-US" xlink:label="lab_us-gaap_SummaryOfIncomeTaxExaminationsTextBlock_9BA4F406614D57E18ABB2725D5CE83AA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Income tax return jurisdictions and years subject to examination</link:label>
    <link:label id="lab_us-gaap_SummaryOfIncomeTaxExaminationsTextBlock_2F95EDBB00CBE273025675987918DAE9_label_en-US" xlink:label="lab_us-gaap_SummaryOfIncomeTaxExaminationsTextBlock_9BA4F406614D57E18ABB2725D5CE83AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Summary of Income Tax Examinations [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SummaryOfIncomeTaxExaminationsTextBlock" xlink:label="loc_us-gaap_SummaryOfIncomeTaxExaminationsTextBlock_9BA4F406614D57E18ABB2725D5CE83AA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SummaryOfIncomeTaxExaminationsTextBlock_9BA4F406614D57E18ABB2725D5CE83AA" xlink:to="lab_us-gaap_SummaryOfIncomeTaxExaminationsTextBlock_9BA4F406614D57E18ABB2725D5CE83AA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract_AF08062970DC2142C2F8A52E4388F54E_label_en-US" xlink:label="lab_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract_AF08062970DC2142C2F8A52E4388F54E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Financial Information of Parent Company Only Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract" xlink:label="loc_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract_AF08062970DC2142C2F8A52E4388F54E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract_AF08062970DC2142C2F8A52E4388F54E" xlink:to="lab_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract_AF08062970DC2142C2F8A52E4388F54E" xlink:type="arc" />
    <link:label id="lab_us-gaap_CondensedIncomeStatementTable_5C029C28CD4ECAB909B3A52E4388797A_terseLabel_en-US" xlink:label="lab_us-gaap_CondensedIncomeStatementTable_5C029C28CD4ECAB909B3A52E4388797A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Income Statement [Table]</link:label>
    <link:label id="lab_us-gaap_CondensedIncomeStatementTable_5C029C28CD4ECAB909B3A52E4388797A_label_en-US" xlink:label="lab_us-gaap_CondensedIncomeStatementTable_5C029C28CD4ECAB909B3A52E4388797A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Income Statement [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedIncomeStatementTable" xlink:label="loc_us-gaap_CondensedIncomeStatementTable_5C029C28CD4ECAB909B3A52E4388797A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CondensedIncomeStatementTable_5C029C28CD4ECAB909B3A52E4388797A" xlink:to="lab_us-gaap_CondensedIncomeStatementTable_5C029C28CD4ECAB909B3A52E4388797A" xlink:type="arc" />
    <link:label id="lab_us-gaap_ConsolidatedEntitiesAxis_30713F08F81C4ECC7D43A54C6D05C3CD_terseLabel_en-US" xlink:label="lab_us-gaap_ConsolidatedEntitiesAxis_30713F08F81C4ECC7D43A54C6D05C3CD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
    <link:label id="lab_us-gaap_ConsolidatedEntitiesAxis_30713F08F81C4ECC7D43A54C6D05C3CD_label_en-US" xlink:label="lab_us-gaap_ConsolidatedEntitiesAxis_30713F08F81C4ECC7D43A54C6D05C3CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidatedEntitiesAxis" xlink:label="loc_us-gaap_ConsolidatedEntitiesAxis_30713F08F81C4ECC7D43A54C6D05C3CD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConsolidatedEntitiesAxis_30713F08F81C4ECC7D43A54C6D05C3CD" xlink:to="lab_us-gaap_ConsolidatedEntitiesAxis_30713F08F81C4ECC7D43A54C6D05C3CD" xlink:type="arc" />
    <link:label id="lab_us-gaap_ConsolidatedEntitiesDomain_12D01A63DB3514C3A89AA54C6D143821_terseLabel_en-US" xlink:label="lab_us-gaap_ConsolidatedEntitiesDomain_12D01A63DB3514C3A89AA54C6D143821" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Domain]</link:label>
    <link:label id="lab_us-gaap_ConsolidatedEntitiesDomain_12D01A63DB3514C3A89AA54C6D143821_label_en-US" xlink:label="lab_us-gaap_ConsolidatedEntitiesDomain_12D01A63DB3514C3A89AA54C6D143821" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidated Entities [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidatedEntitiesDomain" xlink:label="loc_us-gaap_ConsolidatedEntitiesDomain_12D01A63DB3514C3A89AA54C6D143821" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConsolidatedEntitiesDomain_12D01A63DB3514C3A89AA54C6D143821" xlink:to="lab_us-gaap_ConsolidatedEntitiesDomain_12D01A63DB3514C3A89AA54C6D143821" xlink:type="arc" />
    <link:label id="lab_us-gaap_ParentCompanyMember_9019A0E237564B78FF33A54C6D14ED4F_terseLabel_en-US" xlink:label="lab_us-gaap_ParentCompanyMember_9019A0E237564B78FF33A54C6D14ED4F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Parent Company</link:label>
    <link:label id="lab_us-gaap_ParentCompanyMember_9019A0E237564B78FF33A54C6D14ED4F_label_en-US" xlink:label="lab_us-gaap_ParentCompanyMember_9019A0E237564B78FF33A54C6D14ED4F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Parent Company [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ParentCompanyMember" xlink:label="loc_us-gaap_ParentCompanyMember_9019A0E237564B78FF33A54C6D14ED4F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ParentCompanyMember_9019A0E237564B78FF33A54C6D14ED4F" xlink:to="lab_us-gaap_ParentCompanyMember_9019A0E237564B78FF33A54C6D14ED4F" xlink:type="arc" />
    <link:label id="lab_us-gaap_CondensedIncomeStatementsCaptionsLineItems_3D81DE334915BA8B9606A52E43883ECA_terseLabel_en-US" xlink:label="lab_us-gaap_CondensedIncomeStatementsCaptionsLineItems_3D81DE334915BA8B9606A52E43883ECA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Income Statements, Captions [Line Items]</link:label>
    <link:label id="lab_us-gaap_CondensedIncomeStatementsCaptionsLineItems_3D81DE334915BA8B9606A52E43883ECA_label_en-US" xlink:label="lab_us-gaap_CondensedIncomeStatementsCaptionsLineItems_3D81DE334915BA8B9606A52E43883ECA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Income Statements, Captions [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedIncomeStatementsCaptionsLineItems" xlink:label="loc_us-gaap_CondensedIncomeStatementsCaptionsLineItems_3D81DE334915BA8B9606A52E43883ECA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CondensedIncomeStatementsCaptionsLineItems_3D81DE334915BA8B9606A52E43883ECA" xlink:to="lab_us-gaap_CondensedIncomeStatementsCaptionsLineItems_3D81DE334915BA8B9606A52E43883ECA" xlink:type="arc" />
    <link:label id="lab_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047_verboseLabel_en-US" xlink:label="lab_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Condensed Statements of Operations and Comprehensive Income</link:label>
    <link:label id="lab_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047_label_en-US" xlink:label="lab_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Operations [Abstract]</link:label>
    <link:label id="lab_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047_documentation_en-US" xlink:label="lab_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Statement of operations.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_StatementOfOperationsAbstract" xlink:label="loc_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047" xlink:to="lab_gbci_StatementOfOperationsAbstract_90709EF0C42F62FB366CA52E43882047" xlink:type="arc" />
    <link:label id="lab_us-gaap_RevenuesAbstract_72E97817407CA92386FCA52E4388CA85_verboseLabel_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_72E97817407CA92386FCA52E4388CA85" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Income</link:label>
    <link:label id="lab_us-gaap_RevenuesAbstract_72E97817407CA92386FCA52E4388CA85_label_en-US" xlink:label="lab_us-gaap_RevenuesAbstract_72E97817407CA92386FCA52E4388CA85" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenues [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RevenuesAbstract" xlink:label="loc_us-gaap_RevenuesAbstract_72E97817407CA92386FCA52E4388CA85" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenuesAbstract_72E97817407CA92386FCA52E4388CA85" xlink:to="lab_us-gaap_RevenuesAbstract_72E97817407CA92386FCA52E4388CA85" xlink:type="arc" />
    <link:label id="lab_us-gaap_InvestmentIncomeDividend_596922E83F6535108246A52E4388E8D7_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIncomeDividend_596922E83F6535108246A52E4388E8D7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends from subsidiaries</link:label>
    <link:label id="lab_us-gaap_InvestmentIncomeDividend_596922E83F6535108246A52E4388E8D7_label_en-US" xlink:label="lab_us-gaap_InvestmentIncomeDividend_596922E83F6535108246A52E4388E8D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Income, Dividend</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentIncomeDividend" xlink:label="loc_us-gaap_InvestmentIncomeDividend_596922E83F6535108246A52E4388E8D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIncomeDividend_596922E83F6535108246A52E4388E8D7" xlink:to="lab_us-gaap_InvestmentIncomeDividend_596922E83F6535108246A52E4388E8D7" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_4C053B8412723D496637A52E438832E7_terseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_4C053B8412723D496637A52E438832E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain on sale of investments</link:label>
    <link:label id="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_4C053B8412723D496637A52E438832E7_label_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_4C053B8412723D496637A52E438832E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) on Sale of Securities, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:label="loc_us-gaap_GainLossOnSaleOfSecuritiesNet_4C053B8412723D496637A52E438832E7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfSecuritiesNet_4C053B8412723D496637A52E438832E7" xlink:to="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_4C053B8412723D496637A52E438832E7" xlink:type="arc" />
    <link:label id="lab_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A_verboseLabel_en-US" xlink:label="lab_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Intercompany charges for services</link:label>
    <link:label id="lab_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A_label_en-US" xlink:label="lab_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Intercompany Charges for Services</link:label>
    <link:label id="lab_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A_documentation_en-US" xlink:label="lab_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Intercompany charges for services.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_IntercompanyChargesForServices" xlink:label="loc_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A" xlink:to="lab_gbci_IntercompanyChargesForServices_DF50D95F63BDCA6A7B73A52E4388240A" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherIncome_AFABD563DDF9B959CC5AA52E4388BD2A_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherIncome_AFABD563DDF9B959CC5AA52E4388BD2A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other income</link:label>
    <link:label id="lab_us-gaap_OtherIncome_AFABD563DDF9B959CC5AA52E4388BD2A_label_en-US" xlink:label="lab_us-gaap_OtherIncome_AFABD563DDF9B959CC5AA52E4388BD2A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIncome" xlink:label="loc_us-gaap_OtherIncome_AFABD563DDF9B959CC5AA52E4388BD2A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIncome_AFABD563DDF9B959CC5AA52E4388BD2A" xlink:to="lab_us-gaap_OtherIncome_AFABD563DDF9B959CC5AA52E4388BD2A" xlink:type="arc" />
    <link:label id="lab_us-gaap_Revenues_76F45F31CDD3F5CC3DDEA52E4388141F_totalLabel_en-US" xlink:label="lab_us-gaap_Revenues_76F45F31CDD3F5CC3DDEA52E4388141F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total income</link:label>
    <link:label id="lab_us-gaap_Revenues_76F45F31CDD3F5CC3DDEA52E4388141F_label_en-US" xlink:label="lab_us-gaap_Revenues_76F45F31CDD3F5CC3DDEA52E4388141F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenues</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_76F45F31CDD3F5CC3DDEA52E4388141F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Revenues_76F45F31CDD3F5CC3DDEA52E4388141F" xlink:to="lab_us-gaap_Revenues_76F45F31CDD3F5CC3DDEA52E4388141F" xlink:type="arc" />
    <link:label id="lab_us-gaap_CostsAndExpensesAbstract_10E7CE5D194987C59AA9A52E43884A32_verboseLabel_en-US" xlink:label="lab_us-gaap_CostsAndExpensesAbstract_10E7CE5D194987C59AA9A52E43884A32" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Expenses</link:label>
    <link:label id="lab_us-gaap_CostsAndExpensesAbstract_10E7CE5D194987C59AA9A52E43884A32_label_en-US" xlink:label="lab_us-gaap_CostsAndExpensesAbstract_10E7CE5D194987C59AA9A52E43884A32" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Costs and Expenses [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostsAndExpensesAbstract" xlink:label="loc_us-gaap_CostsAndExpensesAbstract_10E7CE5D194987C59AA9A52E43884A32" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostsAndExpensesAbstract_10E7CE5D194987C59AA9A52E43884A32" xlink:to="lab_us-gaap_CostsAndExpensesAbstract_10E7CE5D194987C59AA9A52E43884A32" xlink:type="arc" />
    <link:label id="lab_us-gaap_LaborAndRelatedExpense_CD450E6E0D2F06F6387EA52E4388620D_verboseLabel_en-US" xlink:label="lab_us-gaap_LaborAndRelatedExpense_CD450E6E0D2F06F6387EA52E4388620D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Compensation and employee benefits</link:label>
    <link:label id="lab_us-gaap_LaborAndRelatedExpense_CD450E6E0D2F06F6387EA52E4388620D_label_en-US" xlink:label="lab_us-gaap_LaborAndRelatedExpense_CD450E6E0D2F06F6387EA52E4388620D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Labor and Related Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="loc_us-gaap_LaborAndRelatedExpense_CD450E6E0D2F06F6387EA52E4388620D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LaborAndRelatedExpense_CD450E6E0D2F06F6387EA52E4388620D" xlink:to="lab_us-gaap_LaborAndRelatedExpense_CD450E6E0D2F06F6387EA52E4388620D" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherNoninterestExpense_DDC142399C20046CA6F2A52E4388BC35_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNoninterestExpense_DDC142399C20046CA6F2A52E4388BC35" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other operating expenses</link:label>
    <link:label id="lab_us-gaap_OtherNoninterestExpense_DDC142399C20046CA6F2A52E4388BC35_label_en-US" xlink:label="lab_us-gaap_OtherNoninterestExpense_DDC142399C20046CA6F2A52E4388BC35" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Noninterest Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="loc_us-gaap_OtherNoninterestExpense_DDC142399C20046CA6F2A52E4388BC35" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNoninterestExpense_DDC142399C20046CA6F2A52E4388BC35" xlink:to="lab_us-gaap_OtherNoninterestExpense_DDC142399C20046CA6F2A52E4388BC35" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestExpense_3E2795D7066363383378A52E43887909_verboseLabel_en-US" xlink:label="lab_us-gaap_NoninterestExpense_3E2795D7066363383378A52E43887909" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total expenses</link:label>
    <link:label id="lab_us-gaap_NoninterestExpense_3E2795D7066363383378A52E43887909_label_en-US" xlink:label="lab_us-gaap_NoninterestExpense_3E2795D7066363383378A52E43887909" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noninterest Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestExpense" xlink:label="loc_us-gaap_NoninterestExpense_3E2795D7066363383378A52E43887909" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestExpense_3E2795D7066363383378A52E43887909" xlink:to="lab_us-gaap_NoninterestExpense_3E2795D7066363383378A52E43887909" xlink:type="arc" />
    <link:label id="lab_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56_totalLabel_en-US" xlink:label="lab_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income before income tax benefit and equity in undistributed net income of subsidiaries</link:label>
    <link:label id="lab_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56_label_en-US" xlink:label="lab_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Before Income Tax Benefit and Equity in Undistributed Earnings of Subsidiaries</link:label>
    <link:label id="lab_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56_documentation_en-US" xlink:label="lab_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Earnings before income tax benefit and equity in undistributed earnings of subsidiaries.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries" xlink:label="loc_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56" xlink:to="lab_gbci_EarningsBeforeIncomeTaxBenefitAndEquityInUndistributedEarningsOfSubsidiaries_A7CDAB292CEDE1C11CFAA52E43885E56" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_20A252E16B6DA49EAA2DA52E43884556_negatedLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_20A252E16B6DA49EAA2DA52E43884556" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Income tax benefit</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_20A252E16B6DA49EAA2DA52E43884556_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_20A252E16B6DA49EAA2DA52E43884556" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_20A252E16B6DA49EAA2DA52E43884556" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_20A252E16B6DA49EAA2DA52E43884556" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit_20A252E16B6DA49EAA2DA52E43884556" xlink:type="arc" />
    <link:label id="lab_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174_totalLabel_en-US" xlink:label="lab_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income before equity in undistributed net income of subsidiaries</link:label>
    <link:label id="lab_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174_label_en-US" xlink:label="lab_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Before Equity in Undistributed Earnings of subsidiaries</link:label>
    <link:label id="lab_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174_documentation_en-US" xlink:label="lab_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Income before equity in undistributed earnings of subsidiaries.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries" xlink:label="loc_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174" xlink:to="lab_gbci_IncomeBeforeEquityInUndistributedEarningsOfSubsidiaries_B4A694AFB693D30F7056A52E4388E174" xlink:type="arc" />
    <link:label id="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9_terseLabel_en-US" xlink:label="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity in undistributed net income of subsidiaries</link:label>
    <link:label id="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9_label_en-US" xlink:label="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiary Income (in Excess of ) Less than Dividends Distributed</link:label>
    <link:label id="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9_documentation_en-US" xlink:label="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Subsidiary Income (in Excess of ) Less than Dividends Distributed</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed" xlink:label="loc_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9" xlink:to="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_B2FC8D03ACA1B24735E8A52E438827E9" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_5102908DF99CDF3AC85FA52E4388DB66_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_5102908DF99CDF3AC85FA52E4388DB66" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net Income</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_5102908DF99CDF3AC85FA52E4388DB66_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_5102908DF99CDF3AC85FA52E4388DB66" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Income (Loss) Attributable to Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_5102908DF99CDF3AC85FA52E4388DB66" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss_5102908DF99CDF3AC85FA52E4388DB66" xlink:to="lab_us-gaap_NetIncomeLoss_5102908DF99CDF3AC85FA52E4388DB66" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_C17D9C78E09C89E3DC8EA52E4398B927_verboseLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax_C17D9C78E09C89E3DC8EA52E4398B927" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive Income</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_C17D9C78E09C89E3DC8EA52E4398B927_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax_C17D9C78E09C89E3DC8EA52E4398B927" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_C17D9C78E09C89E3DC8EA52E4398B927" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_C17D9C78E09C89E3DC8EA52E4398B927" xlink:to="lab_us-gaap_ComprehensiveIncomeNetOfTax_C17D9C78E09C89E3DC8EA52E4398B927" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock_BC9F1053AB29F68C446D759878C7C911_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock_CF145686893E5F8B80FD18A7613D4920" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Condensed Statements of Financial Condition</link:label>
    <link:label id="lab_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock_BC9F1053AB29F68C446D759878C7C911_label_en-US" xlink:label="lab_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock_CF145686893E5F8B80FD18A7613D4920" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock_CF145686893E5F8B80FD18A7613D4920" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock_CF145686893E5F8B80FD18A7613D4920" xlink:to="lab_us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock_CF145686893E5F8B80FD18A7613D4920" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock_52B81FC5D2F03AEC88DA759878C71232_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock_7C9C475928D05F30B58D04DF83E66CBE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Condensed Statements of Operations and Comprehensive Income</link:label>
    <link:label id="lab_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock_52B81FC5D2F03AEC88DA759878C71232_label_en-US" xlink:label="lab_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock_7C9C475928D05F30B58D04DF83E66CBE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Income Statement [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock_7C9C475928D05F30B58D04DF83E66CBE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock_7C9C475928D05F30B58D04DF83E66CBE" xlink:to="lab_us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock_7C9C475928D05F30B58D04DF83E66CBE" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock_43EA13B631793D0240B8759878C71661_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock_A6B22240BA225C27AD2013C7D1715C2E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Condensed Statements of Cash Flows</link:label>
    <link:label id="lab_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock_43EA13B631793D0240B8759878C71661_label_en-US" xlink:label="lab_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock_A6B22240BA225C27AD2013C7D1715C2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statement [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock_A6B22240BA225C27AD2013C7D1715C2E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock_A6B22240BA225C27AD2013C7D1715C2E" xlink:to="lab_us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock_A6B22240BA225C27AD2013C7D1715C2E" xlink:type="arc" />
    <link:label id="lab_us-gaap_CondensedBalanceSheetStatementTable_0B89C68175EF6B2A07D8A4BB4375811C_terseLabel_en-US" xlink:label="lab_us-gaap_CondensedBalanceSheetStatementTable_0B89C68175EF6B2A07D8A4BB4375811C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet Statement [Table]</link:label>
    <link:label id="lab_us-gaap_CondensedBalanceSheetStatementTable_0B89C68175EF6B2A07D8A4BB4375811C_label_en-US" xlink:label="lab_us-gaap_CondensedBalanceSheetStatementTable_0B89C68175EF6B2A07D8A4BB4375811C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet Statement [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedBalanceSheetStatementTable" xlink:label="loc_us-gaap_CondensedBalanceSheetStatementTable_0B89C68175EF6B2A07D8A4BB4375811C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CondensedBalanceSheetStatementTable_0B89C68175EF6B2A07D8A4BB4375811C" xlink:to="lab_us-gaap_CondensedBalanceSheetStatementTable_0B89C68175EF6B2A07D8A4BB4375811C" xlink:type="arc" />
    <link:label id="lab_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems_083CD139FAB8BB969F1DA4BB4375C34D_terseLabel_en-US" xlink:label="lab_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems_083CD139FAB8BB969F1DA4BB4375C34D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet Statements, Captions [Line Items]</link:label>
    <link:label id="lab_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems_083CD139FAB8BB969F1DA4BB4375C34D_label_en-US" xlink:label="lab_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems_083CD139FAB8BB969F1DA4BB4375C34D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet Statements, Captions [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems" xlink:label="loc_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems_083CD139FAB8BB969F1DA4BB4375C34D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems_083CD139FAB8BB969F1DA4BB4375C34D" xlink:to="lab_us-gaap_CondensedBalanceSheetStatementsCaptionsLineItems_083CD139FAB8BB969F1DA4BB4375C34D" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_9557CA10DF68300CF244A4BB43755726_verboseLabel_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract_9557CA10DF68300CF244A4BB43755726" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Condensed Statements of Financial Condition</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="loc_us-gaap_StatementOfFinancialPositionAbstract_9557CA10DF68300CF244A4BB43755726" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfFinancialPositionAbstract_9557CA10DF68300CF244A4BB43755726" xlink:to="lab_us-gaap_StatementOfFinancialPositionAbstract_9557CA10DF68300CF244A4BB43755726" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsAbstract_709AE7FE6FDC81DB3C7AA4BB4375B2EF_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract_709AE7FE6FDC81DB3C7AA4BB4375B2EF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_us-gaap_AssetsAbstract_709AE7FE6FDC81DB3C7AA4BB4375B2EF_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract_709AE7FE6FDC81DB3C7AA4BB4375B2EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_709AE7FE6FDC81DB3C7AA4BB4375B2EF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract_709AE7FE6FDC81DB3C7AA4BB4375B2EF" xlink:to="lab_us-gaap_AssetsAbstract_709AE7FE6FDC81DB3C7AA4BB4375B2EF" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndDueFromBanks_4B2BD8DDCD98786600FFA4BB4375A2D3_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndDueFromBanks_4B2BD8DDCD98786600FFA4BB4375A2D3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash on hand and in banks</link:label>
    <link:label id="lab_us-gaap_CashAndDueFromBanks_4B2BD8DDCD98786600FFA4BB4375A2D3_label_en-US" xlink:label="lab_us-gaap_CashAndDueFromBanks_4B2BD8DDCD98786600FFA4BB4375A2D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Due from Banks</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndDueFromBanks" xlink:label="loc_us-gaap_CashAndDueFromBanks_4B2BD8DDCD98786600FFA4BB4375A2D3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndDueFromBanks_4B2BD8DDCD98786600FFA4BB4375A2D3" xlink:to="lab_us-gaap_CashAndDueFromBanks_4B2BD8DDCD98786600FFA4BB4375A2D3" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestBearingDepositsInBanks_4FC1C7E8CA6B73186103A4BB437543AF_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestBearingDepositsInBanks_4FC1C7E8CA6B73186103A4BB437543AF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest bearing cash deposits</link:label>
    <link:label id="lab_us-gaap_InterestBearingDepositsInBanks_4FC1C7E8CA6B73186103A4BB437543AF_label_en-US" xlink:label="lab_us-gaap_InterestBearingDepositsInBanks_4FC1C7E8CA6B73186103A4BB437543AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest-bearing Deposits in Banks and Other Financial Institutions</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestBearingDepositsInBanks" xlink:label="loc_us-gaap_InterestBearingDepositsInBanks_4FC1C7E8CA6B73186103A4BB437543AF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestBearingDepositsInBanks_4FC1C7E8CA6B73186103A4BB437543AF" xlink:to="lab_us-gaap_InterestBearingDepositsInBanks_4FC1C7E8CA6B73186103A4BB437543AF" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashCashEquivalentsAndFederalFundsSold_780E0750F55EF36B28F5A4BB43754C19_terseLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsAndFederalFundsSold_780E0750F55EF36B28F5A4BB43754C19" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsAndFederalFundsSold_780E0750F55EF36B28F5A4BB43754C19_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsAndFederalFundsSold_780E0750F55EF36B28F5A4BB43754C19" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash, Cash Equivalents, and Federal Funds Sold</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashCashEquivalentsAndFederalFundsSold" xlink:label="loc_us-gaap_CashCashEquivalentsAndFederalFundsSold_780E0750F55EF36B28F5A4BB43754C19" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsAndFederalFundsSold_780E0750F55EF36B28F5A4BB43754C19" xlink:to="lab_us-gaap_CashCashEquivalentsAndFederalFundsSold_780E0750F55EF36B28F5A4BB43754C19" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecurities_F6FEE34F25B524FE4F73A4BB43753B3D_verboseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecurities_F6FEE34F25B524FE4F73A4BB43753B3D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investment securities, available-for-sale</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecurities_F6FEE34F25B524FE4F73A4BB43753B3D_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecurities_F6FEE34F25B524FE4F73A4BB43753B3D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecurities_F6FEE34F25B524FE4F73A4BB43753B3D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecurities_F6FEE34F25B524FE4F73A4BB43753B3D" xlink:to="lab_us-gaap_AvailableForSaleSecurities_F6FEE34F25B524FE4F73A4BB43753B3D" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherAssets_24AEA95BBF1A7F2ADA5CA4BB4375DF87_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherAssets_24AEA95BBF1A7F2ADA5CA4BB4375DF87" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_us-gaap_OtherAssets_24AEA95BBF1A7F2ADA5CA4BB4375DF87_label_en-US" xlink:label="lab_us-gaap_OtherAssets_24AEA95BBF1A7F2ADA5CA4BB4375DF87" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssets" xlink:label="loc_us-gaap_OtherAssets_24AEA95BBF1A7F2ADA5CA4BB4375DF87" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssets_24AEA95BBF1A7F2ADA5CA4BB4375DF87" xlink:to="lab_us-gaap_OtherAssets_24AEA95BBF1A7F2ADA5CA4BB4375DF87" xlink:type="arc" />
    <link:label id="lab_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59_verboseLabel_en-US" xlink:label="lab_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investment in subsidiaries</link:label>
    <link:label id="lab_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59_label_en-US" xlink:label="lab_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in Subsidiaries</link:label>
    <link:label id="lab_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59_documentation_en-US" xlink:label="lab_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investments in Subsidiaries</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_InvestmentsinSubsidiaries" xlink:label="loc_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59" xlink:to="lab_gbci_InvestmentsinSubsidiaries_2FE9A2743A0CE7A62DAEA4BB43757E59" xlink:type="arc" />
    <link:label id="lab_us-gaap_Assets_BB5F0ABD3CDAEEC978A7A4BB43759CCD_terseLabel_en-US" xlink:label="lab_us-gaap_Assets_BB5F0ABD3CDAEEC978A7A4BB43759CCD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label id="lab_us-gaap_Assets_BB5F0ABD3CDAEEC978A7A4BB43759CCD_label_en-US" xlink:label="lab_us-gaap_Assets_BB5F0ABD3CDAEEC978A7A4BB43759CCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_BB5F0ABD3CDAEEC978A7A4BB43759CCD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets_BB5F0ABD3CDAEEC978A7A4BB43759CCD" xlink:to="lab_us-gaap_Assets_BB5F0ABD3CDAEEC978A7A4BB43759CCD" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_BC7FCF46A00BDFE0FEC6A4BB4375C326_verboseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_BC7FCF46A00BDFE0FEC6A4BB4375C326" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Liabilities and Stockholders' Equity</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_BC7FCF46A00BDFE0FEC6A4BB4375C326_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_BC7FCF46A00BDFE0FEC6A4BB4375C326" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities and Equity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_BC7FCF46A00BDFE0FEC6A4BB4375C326" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_BC7FCF46A00BDFE0FEC6A4BB4375C326" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_BC7FCF46A00BDFE0FEC6A4BB4375C326" xlink:type="arc" />
    <link:label id="lab_us-gaap_DividendsPayableCurrentAndNoncurrent_61281DB03F08CD301A87A4BB4375A6B6_verboseLabel_en-US" xlink:label="lab_us-gaap_DividendsPayableCurrentAndNoncurrent_61281DB03F08CD301A87A4BB4375A6B6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Dividends payable</link:label>
    <link:label id="lab_us-gaap_DividendsPayableCurrentAndNoncurrent_61281DB03F08CD301A87A4BB4375A6B6_label_en-US" xlink:label="lab_us-gaap_DividendsPayableCurrentAndNoncurrent_61281DB03F08CD301A87A4BB4375A6B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends Payable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_61281DB03F08CD301A87A4BB4375A6B6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_61281DB03F08CD301A87A4BB4375A6B6" xlink:to="lab_us-gaap_DividendsPayableCurrentAndNoncurrent_61281DB03F08CD301A87A4BB4375A6B6" xlink:type="arc" />
    <link:label id="lab_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_3EAFF906D041017294E3A4BB4375FE9B_verboseLabel_en-US" xlink:label="lab_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_3EAFF906D041017294E3A4BB4375FE9B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Subordinated debentures</link:label>
    <link:label id="lab_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_3EAFF906D041017294E3A4BB4375FE9B_label_en-US" xlink:label="lab_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_3EAFF906D041017294E3A4BB4375FE9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust" xlink:label="loc_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_3EAFF906D041017294E3A4BB4375FE9B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_3EAFF906D041017294E3A4BB4375FE9B" xlink:to="lab_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_3EAFF906D041017294E3A4BB4375FE9B" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherLiabilities_EB443759EAA8E51AB5F0A4BB4375E45B_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilities_EB443759EAA8E51AB5F0A4BB4375E45B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_us-gaap_OtherLiabilities_EB443759EAA8E51AB5F0A4BB4375E45B_label_en-US" xlink:label="lab_us-gaap_OtherLiabilities_EB443759EAA8E51AB5F0A4BB4375E45B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="loc_us-gaap_OtherLiabilities_EB443759EAA8E51AB5F0A4BB4375E45B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilities_EB443759EAA8E51AB5F0A4BB4375E45B" xlink:to="lab_us-gaap_OtherLiabilities_EB443759EAA8E51AB5F0A4BB4375E45B" xlink:type="arc" />
    <link:label id="lab_us-gaap_Liabilities_D8C1EFAD4A788CE3148DA4BB43752A81_terseLabel_en-US" xlink:label="lab_us-gaap_Liabilities_D8C1EFAD4A788CE3148DA4BB43752A81" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_us-gaap_Liabilities_D8C1EFAD4A788CE3148DA4BB43752A81_label_en-US" xlink:label="lab_us-gaap_Liabilities_D8C1EFAD4A788CE3148DA4BB43752A81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_D8C1EFAD4A788CE3148DA4BB43752A81" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities_D8C1EFAD4A788CE3148DA4BB43752A81" xlink:to="lab_us-gaap_Liabilities_D8C1EFAD4A788CE3148DA4BB43752A81" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockValueOutstanding_C2C89B4E87164169D6C1A4BB4375FC6D_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockValueOutstanding_C2C89B4E87164169D6C1A4BB4375FC6D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Common stock</link:label>
    <link:label id="lab_us-gaap_CommonStockValueOutstanding_C2C89B4E87164169D6C1A4BB4375FC6D_label_en-US" xlink:label="lab_us-gaap_CommonStockValueOutstanding_C2C89B4E87164169D6C1A4BB4375FC6D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Value, Outstanding</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="loc_us-gaap_CommonStockValueOutstanding_C2C89B4E87164169D6C1A4BB4375FC6D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockValueOutstanding_C2C89B4E87164169D6C1A4BB4375FC6D" xlink:to="lab_us-gaap_CommonStockValueOutstanding_C2C89B4E87164169D6C1A4BB4375FC6D" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalCommonStock_5A770B53F04DF7F011FAA4BB437596F0_verboseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock_5A770B53F04DF7F011FAA4BB437596F0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Paid-in capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalCommonStock_5A770B53F04DF7F011FAA4BB437596F0_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock_5A770B53F04DF7F011FAA4BB437596F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid in Capital, Common Stock</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_5A770B53F04DF7F011FAA4BB437596F0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalCommonStock_5A770B53F04DF7F011FAA4BB437596F0" xlink:to="lab_us-gaap_AdditionalPaidInCapitalCommonStock_5A770B53F04DF7F011FAA4BB437596F0" xlink:type="arc" />
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F534DDF844EFFAD9A20DA4BB4375DED0_verboseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F534DDF844EFFAD9A20DA4BB4375DED0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Retained earnings</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F534DDF844EFFAD9A20DA4BB4375DED0_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F534DDF844EFFAD9A20DA4BB4375DED0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_F534DDF844EFFAD9A20DA4BB4375DED0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsAccumulatedDeficit_F534DDF844EFFAD9A20DA4BB4375DED0" xlink:to="lab_us-gaap_RetainedEarningsAccumulatedDeficit_F534DDF844EFFAD9A20DA4BB4375DED0" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_258A05BC4E202686D268A4BB4375AB1C_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_258A05BC4E202686D268A4BB4375AB1C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated other comprehensive loss</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_258A05BC4E202686D268A4BB4375AB1C_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_258A05BC4E202686D268A4BB4375AB1C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_258A05BC4E202686D268A4BB4375AB1C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_258A05BC4E202686D268A4BB4375AB1C" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_258A05BC4E202686D268A4BB4375AB1C" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquity_9D4D6C6898ED39A23A27A4BB43753046_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_9D4D6C6898ED39A23A27A4BB43753046" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total stockholders&#8217; equity</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_9D4D6C6898ED39A23A27A4BB43753046_label_en-US" xlink:label="lab_us-gaap_StockholdersEquity_9D4D6C6898ED39A23A27A4BB43753046" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Attributable to Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_9D4D6C6898ED39A23A27A4BB43753046" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity_9D4D6C6898ED39A23A27A4BB43753046" xlink:to="lab_us-gaap_StockholdersEquity_9D4D6C6898ED39A23A27A4BB43753046" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_0CB67F2D62A5C46B6E6FA4BB43759F91_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_0CB67F2D62A5C46B6E6FA4BB43759F91" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total liabilities and stockholders&#8217; equity</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_0CB67F2D62A5C46B6E6FA4BB43759F91_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_0CB67F2D62A5C46B6E6FA4BB43759F91" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities and Equity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_0CB67F2D62A5C46B6E6FA4BB43759F91" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_0CB67F2D62A5C46B6E6FA4BB43759F91" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity_0CB67F2D62A5C46B6E6FA4BB43759F91" xlink:type="arc" />
    <link:label id="lab_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_00415C5ACB6EBCADC1AF759877F9EB2E_label_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_0F2E9BB8BA30538288AC3C75EE9B5E3E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Method Investments and Joint Ventures [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract" xlink:label="loc_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_0F2E9BB8BA30538288AC3C75EE9B5E3E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_0F2E9BB8BA30538288AC3C75EE9B5E3E" xlink:to="lab_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_0F2E9BB8BA30538288AC3C75EE9B5E3E" xlink:type="arc" />
    <link:label id="lab_us-gaap_InvestmentsInAffordableHousingProjectsAbstract_30D9FBFA32569119F055759877F9F0A2_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsInAffordableHousingProjectsAbstract_4FD19B5C40335172B23157837F69D59F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investments in Qualified Affordable Housing Projects</link:label>
    <link:label id="lab_us-gaap_InvestmentsInAffordableHousingProjectsAbstract_30D9FBFA32569119F055759877F9F0A2_label_en-US" xlink:label="lab_us-gaap_InvestmentsInAffordableHousingProjectsAbstract_4FD19B5C40335172B23157837F69D59F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in Affordable Housing Projects [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsInAffordableHousingProjectsAbstract" xlink:label="loc_us-gaap_InvestmentsInAffordableHousingProjectsAbstract_4FD19B5C40335172B23157837F69D59F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsInAffordableHousingProjectsAbstract_4FD19B5C40335172B23157837F69D59F" xlink:to="lab_us-gaap_InvestmentsInAffordableHousingProjectsAbstract_4FD19B5C40335172B23157837F69D59F" xlink:type="arc" />
    <link:label id="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization_14495CB9223789E2AAEE759877FA80CE_verboseLabel_en-US" xlink:label="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization_92F0637474C45972B8EC105E7362623A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Amortization expense</link:label>
    <link:label id="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization_14495CB9223789E2AAEE759877FA80CE_label_en-US" xlink:label="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization_92F0637474C45972B8EC105E7362623A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortization Method Qualified Affordable Housing Project Investments, Amortization</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization" xlink:label="loc_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization_92F0637474C45972B8EC105E7362623A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization_92F0637474C45972B8EC105E7362623A" xlink:to="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization_92F0637474C45972B8EC105E7362623A" xlink:type="arc" />
    <link:label id="lab_us-gaap_AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount_47509D1F59AADF26AEC2759877FA20CD_terseLabel_en-US" xlink:label="lab_us-gaap_AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount_290EAA69A4855E60B6357C055B7AD97C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax credits and other tax benefits recognized</link:label>
    <link:label id="lab_us-gaap_AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount_47509D1F59AADF26AEC2759877FA20CD_label_en-US" xlink:label="lab_us-gaap_AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount_290EAA69A4855E60B6357C055B7AD97C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Affordable Housing Tax Credits and Other Tax Benefits, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount" xlink:label="loc_us-gaap_AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount_290EAA69A4855E60B6357C055B7AD97C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount_290EAA69A4855E60B6357C055B7AD97C" xlink:to="lab_us-gaap_AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount_290EAA69A4855E60B6357C055B7AD97C" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherExpensesAbstract_070CE22949F5B443F77D75987926B994_label_en-US" xlink:label="lab_us-gaap_OtherExpensesAbstract_1CF451CF25225A52A7A05FE0985D5876" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Expenses [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherExpensesAbstract" xlink:label="loc_us-gaap_OtherExpensesAbstract_1CF451CF25225A52A7A05FE0985D5876" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherExpensesAbstract_1CF451CF25225A52A7A05FE0985D5876" xlink:to="lab_us-gaap_OtherExpensesAbstract_1CF451CF25225A52A7A05FE0985D5876" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherOperatingIncomeAndExpenseTextBlock_882D1FD5582857EC7DE2759879266139_terseLabel_en-US" xlink:label="lab_us-gaap_OtherOperatingIncomeAndExpenseTextBlock_6249766635BB50A3A27FAA8A09B2ECCD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Expenses</link:label>
    <link:label id="lab_us-gaap_OtherOperatingIncomeAndExpenseTextBlock_882D1FD5582857EC7DE2759879266139_label_en-US" xlink:label="lab_us-gaap_OtherOperatingIncomeAndExpenseTextBlock_6249766635BB50A3A27FAA8A09B2ECCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Operating Income and Expense [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherOperatingIncomeAndExpenseTextBlock" xlink:label="loc_us-gaap_OtherOperatingIncomeAndExpenseTextBlock_6249766635BB50A3A27FAA8A09B2ECCD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherOperatingIncomeAndExpenseTextBlock_6249766635BB50A3A27FAA8A09B2ECCD" xlink:to="lab_us-gaap_OtherOperatingIncomeAndExpenseTextBlock_6249766635BB50A3A27FAA8A09B2ECCD" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExaminationTable_667A678DBC640801B80EA65DC7F5FEC8_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationTable_667A678DBC640801B80EA65DC7F5FEC8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Examination [Table]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExaminationTable_667A678DBC640801B80EA65DC7F5FEC8_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationTable_667A678DBC640801B80EA65DC7F5FEC8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Examination [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExaminationTable" xlink:label="loc_us-gaap_IncomeTaxExaminationTable_667A678DBC640801B80EA65DC7F5FEC8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExaminationTable_667A678DBC640801B80EA65DC7F5FEC8" xlink:to="lab_us-gaap_IncomeTaxExaminationTable_667A678DBC640801B80EA65DC7F5FEC8" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxAuthorityAxis_53AC6FC7376A8984928CA65DC7F52880_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxAuthorityAxis_53AC6FC7376A8984928CA65DC7F52880" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Authority [Axis]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxAuthorityAxis_53AC6FC7376A8984928CA65DC7F52880_label_en-US" xlink:label="lab_us-gaap_IncomeTaxAuthorityAxis_53AC6FC7376A8984928CA65DC7F52880" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Authority [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_53AC6FC7376A8984928CA65DC7F52880" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_53AC6FC7376A8984928CA65DC7F52880" xlink:to="lab_us-gaap_IncomeTaxAuthorityAxis_53AC6FC7376A8984928CA65DC7F52880" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxAuthorityDomain_17A24986FD95F9409713A65DC7F586F2_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxAuthorityDomain_17A24986FD95F9409713A65DC7F586F2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Authority [Domain]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxAuthorityDomain_17A24986FD95F9409713A65DC7F586F2_label_en-US" xlink:label="lab_us-gaap_IncomeTaxAuthorityDomain_17A24986FD95F9409713A65DC7F586F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Authority [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_17A24986FD95F9409713A65DC7F586F2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_17A24986FD95F9409713A65DC7F586F2" xlink:to="lab_us-gaap_IncomeTaxAuthorityDomain_17A24986FD95F9409713A65DC7F586F2" xlink:type="arc" />
    <link:label id="lab_us-gaap_InternalRevenueServiceIRSMember_B0C2F888A5295A7F1E28A65DC7F59FFC_verboseLabel_en-US" xlink:label="lab_us-gaap_InternalRevenueServiceIRSMember_B0C2F888A5295A7F1E28A65DC7F59FFC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Federal</link:label>
    <link:label id="lab_us-gaap_InternalRevenueServiceIRSMember_B0C2F888A5295A7F1E28A65DC7F59FFC_label_en-US" xlink:label="lab_us-gaap_InternalRevenueServiceIRSMember_B0C2F888A5295A7F1E28A65DC7F59FFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Internal Revenue Service (IRS) [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InternalRevenueServiceIRSMember" xlink:label="loc_us-gaap_InternalRevenueServiceIRSMember_B0C2F888A5295A7F1E28A65DC7F59FFC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InternalRevenueServiceIRSMember_B0C2F888A5295A7F1E28A65DC7F59FFC" xlink:to="lab_us-gaap_InternalRevenueServiceIRSMember_B0C2F888A5295A7F1E28A65DC7F59FFC" xlink:type="arc" />
    <link:label id="lab_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1_verboseLabel_en-US" xlink:label="lab_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Montana</link:label>
    <link:label id="lab_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1_label_en-US" xlink:label="lab_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Montana [Member]</link:label>
    <link:label id="lab_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1_documentation_en-US" xlink:label="lab_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Montana.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MontanaMember" xlink:label="loc_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1" xlink:to="lab_gbci_MontanaMember_2DA1BDD1B2D5B53D13F4A65DC7F539A1" xlink:type="arc" />
    <link:label id="lab_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C_verboseLabel_en-US" xlink:label="lab_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Idaho</link:label>
    <link:label id="lab_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C_label_en-US" xlink:label="lab_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Idaho [Member]</link:label>
    <link:label id="lab_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C_documentation_en-US" xlink:label="lab_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Idaho.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_IdahoMember" xlink:label="loc_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C" xlink:to="lab_gbci_IdahoMember_0884AF385CEF727D4FCAA65DC7F53F5C" xlink:type="arc" />
    <link:label id="lab_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0_verboseLabel_en-US" xlink:label="lab_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Utah</link:label>
    <link:label id="lab_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0_label_en-US" xlink:label="lab_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Utah [Member]</link:label>
    <link:label id="lab_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0_documentation_en-US" xlink:label="lab_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Utah.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_UtahMember" xlink:label="loc_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0" xlink:to="lab_gbci_UtahMember_AA8EC2604386B1E4B06AA65DC7F5A7E0" xlink:type="arc" />
    <link:label id="lab_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0_verboseLabel_en-US" xlink:label="lab_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Colorado</link:label>
    <link:label id="lab_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0_label_en-US" xlink:label="lab_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Colorado [Member]</link:label>
    <link:label id="lab_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0_documentation_en-US" xlink:label="lab_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Colorado.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ColoradoMember" xlink:label="loc_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0" xlink:to="lab_gbci_ColoradoMember_E58CA8E6370FFE3C6BFEA65DC7F56AD0" xlink:type="arc" />
    <link:label id="lab_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28_terseLabel_en-US" xlink:label="lab_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Arizona</link:label>
    <link:label id="lab_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28_label_en-US" xlink:label="lab_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Arizona [Member]</link:label>
    <link:label id="lab_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28_documentation_en-US" xlink:label="lab_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Arizona [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ArizonaMember" xlink:label="loc_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28" xlink:to="lab_gbci_ArizonaMember_6BE132CEE5D0338902A3A672C6006B28" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExaminationLineItems_31476EB4DFE6A52E59C9A65DC7F54EAC_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationLineItems_31476EB4DFE6A52E59C9A65DC7F54EAC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Examination</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExaminationLineItems_31476EB4DFE6A52E59C9A65DC7F54EAC_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationLineItems_31476EB4DFE6A52E59C9A65DC7F54EAC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Examination [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExaminationLineItems" xlink:label="loc_us-gaap_IncomeTaxExaminationLineItems_31476EB4DFE6A52E59C9A65DC7F54EAC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExaminationLineItems_31476EB4DFE6A52E59C9A65DC7F54EAC" xlink:to="lab_us-gaap_IncomeTaxExaminationLineItems_31476EB4DFE6A52E59C9A65DC7F54EAC" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExaminationDescription_16540C9988799433937CA65DC7F5719B_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationDescription_16540C9988799433937CA65DC7F5719B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Income tax return jurisdictions and years that remain subject to examination</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExaminationDescription_16540C9988799433937CA65DC7F5719B_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationDescription_16540C9988799433937CA65DC7F5719B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Examination, Description</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExaminationDescription" xlink:label="loc_us-gaap_IncomeTaxExaminationDescription_16540C9988799433937CA65DC7F5719B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExaminationDescription_16540C9988799433937CA65DC7F5719B" xlink:to="lab_us-gaap_IncomeTaxExaminationDescription_16540C9988799433937CA65DC7F5719B" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeTable_412BDDF3D90830AE0F74A4BB446F8DD0_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeTable_412BDDF3D90830AE0F74A4BB446F8DD0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative [Table]</link:label>
    <link:label id="lab_us-gaap_DerivativeTable_412BDDF3D90830AE0F74A4BB446F8DD0_label_en-US" xlink:label="lab_us-gaap_DerivativeTable_412BDDF3D90830AE0F74A4BB446F8DD0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_412BDDF3D90830AE0F74A4BB446F8DD0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeTable_412BDDF3D90830AE0F74A4BB446F8DD0" xlink:to="lab_us-gaap_DerivativeTable_412BDDF3D90830AE0F74A4BB446F8DD0" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentRiskAxis_D3092CAF1025491C114DA4BB446FB6AF_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentRiskAxis_D3092CAF1025491C114DA4BB446FB6AF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Instrument [Axis]</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentRiskAxis_D3092CAF1025491C114DA4BB446FB6AF_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentRiskAxis_D3092CAF1025491C114DA4BB446FB6AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instrument [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_D3092CAF1025491C114DA4BB446FB6AF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_D3092CAF1025491C114DA4BB446FB6AF" xlink:to="lab_us-gaap_DerivativeInstrumentRiskAxis_D3092CAF1025491C114DA4BB446FB6AF" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeContractTypeDomain_517CF534A503D1DC62DEA4BB446FAD0D_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeContractTypeDomain_517CF534A503D1DC62DEA4BB446FAD0D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative, Name [Domain]</link:label>
    <link:label id="lab_us-gaap_DerivativeContractTypeDomain_517CF534A503D1DC62DEA4BB446FAD0D_label_en-US" xlink:label="lab_us-gaap_DerivativeContractTypeDomain_517CF534A503D1DC62DEA4BB446FAD0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Contract [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_517CF534A503D1DC62DEA4BB446FAD0D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_517CF534A503D1DC62DEA4BB446FAD0D" xlink:to="lab_us-gaap_DerivativeContractTypeDomain_517CF534A503D1DC62DEA4BB446FAD0D" xlink:type="arc" />
    <link:label id="lab_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043_terseLabel_en-US" xlink:label="lab_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Rate Swap One</link:label>
    <link:label id="lab_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043_label_en-US" xlink:label="lab_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Rate Swap One [Member]</link:label>
    <link:label id="lab_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043_documentation_en-US" xlink:label="lab_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest rate swap.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_InterestRateSwapOneMember" xlink:label="loc_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043" xlink:to="lab_gbci_InterestRateSwapOneMember_4D2FC8132C71277288EAA4BB446FC043" xlink:type="arc" />
    <link:label id="lab_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1_terseLabel_en-US" xlink:label="lab_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Rate Swap Two</link:label>
    <link:label id="lab_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1_label_en-US" xlink:label="lab_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Rate Swap Two [Member]</link:label>
    <link:label id="lab_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1_documentation_en-US" xlink:label="lab_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest rate swap.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_InterestRateSwapTwoMember" xlink:label="loc_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1" xlink:to="lab_gbci_InterestRateSwapTwoMember_5210010154E441A69873A4BB446FB3D1" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeLineItems_F99F2272BAD9EFCBB718A4BB446FC564_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLineItems_F99F2272BAD9EFCBB718A4BB446FC564" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate swap derivative financial instruments</link:label>
    <link:label id="lab_us-gaap_DerivativeLineItems_F99F2272BAD9EFCBB718A4BB446FC564_label_en-US" xlink:label="lab_us-gaap_DerivativeLineItems_F99F2272BAD9EFCBB718A4BB446FC564" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_F99F2272BAD9EFCBB718A4BB446FC564" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLineItems_F99F2272BAD9EFCBB718A4BB446FC564" xlink:to="lab_us-gaap_DerivativeLineItems_F99F2272BAD9EFCBB718A4BB446FC564" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeLiabilityNotionalAmount_B2D566239BF5D53B1B6FA4BB446F9B2F_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilityNotionalAmount_B2D566239BF5D53B1B6FA4BB446F9B2F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Forecasted Notional Amount</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilityNotionalAmount_B2D566239BF5D53B1B6FA4BB446F9B2F_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilityNotionalAmount_B2D566239BF5D53B1B6FA4BB446F9B2F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liability, Notional Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilityNotionalAmount" xlink:label="loc_us-gaap_DerivativeLiabilityNotionalAmount_B2D566239BF5D53B1B6FA4BB446F9B2F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLiabilityNotionalAmount_B2D566239BF5D53B1B6FA4BB446F9B2F" xlink:to="lab_us-gaap_DerivativeLiabilityNotionalAmount_B2D566239BF5D53B1B6FA4BB446F9B2F" xlink:type="arc" />
    <link:label id="lab_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131_terseLabel_en-US" xlink:label="lab_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Rate</link:label>
    <link:label id="lab_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131_label_en-US" xlink:label="lab_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Variable Interest Rate Basis</link:label>
    <link:label id="lab_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131_documentation_en-US" xlink:label="lab_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The reference rate for the variable rate of the interest rate derivative, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DerivativeVariableInterestRateBasis" xlink:label="loc_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131" xlink:to="lab_gbci_DerivativeVariableInterestRateBasis_1FDFCCB0FC5B39890A07A4BB446FE131" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeFixedInterestRate_6712987EFA703ECF5F2CA4BB446FA4DA_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFixedInterestRate_6712987EFA703ECF5F2CA4BB446FA4DA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fixed Interest Rate</link:label>
    <link:label id="lab_us-gaap_DerivativeFixedInterestRate_6712987EFA703ECF5F2CA4BB446FA4DA_label_en-US" xlink:label="lab_us-gaap_DerivativeFixedInterestRate_6712987EFA703ECF5F2CA4BB446FA4DA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Fixed Interest Rate</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFixedInterestRate" xlink:label="loc_us-gaap_DerivativeFixedInterestRate_6712987EFA703ECF5F2CA4BB446FA4DA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFixedInterestRate_6712987EFA703ECF5F2CA4BB446FA4DA" xlink:to="lab_us-gaap_DerivativeFixedInterestRate_6712987EFA703ECF5F2CA4BB446FA4DA" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInceptionDates_A063F80A77A58497853EA4BB446F0642_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInceptionDates_A063F80A77A58497853EA4BB446F0642" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Term, Effective Date</link:label>
    <link:label id="lab_us-gaap_DerivativeInceptionDates_A063F80A77A58497853EA4BB446F0642_label_en-US" xlink:label="lab_us-gaap_DerivativeInceptionDates_A063F80A77A58497853EA4BB446F0642" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Inception Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInceptionDates" xlink:label="loc_us-gaap_DerivativeInceptionDates_A063F80A77A58497853EA4BB446F0642" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInceptionDates_A063F80A77A58497853EA4BB446F0642" xlink:to="lab_us-gaap_DerivativeInceptionDates_A063F80A77A58497853EA4BB446F0642" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeMaturityDates_AE7187D91DB091C58907A4BB446FE2E1_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeMaturityDates_AE7187D91DB091C58907A4BB446FE2E1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Term, Maturity Date</link:label>
    <link:label id="lab_us-gaap_DerivativeMaturityDates_AE7187D91DB091C58907A4BB446FE2E1_label_en-US" xlink:label="lab_us-gaap_DerivativeMaturityDates_AE7187D91DB091C58907A4BB446FE2E1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Maturity Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeMaturityDates" xlink:label="loc_us-gaap_DerivativeMaturityDates_AE7187D91DB091C58907A4BB446FE2E1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeMaturityDates_AE7187D91DB091C58907A4BB446FE2E1" xlink:to="lab_us-gaap_DerivativeMaturityDates_AE7187D91DB091C58907A4BB446FE2E1" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTable_C7ADD7AB56D621584E6FA4679CD19B07_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTable_C7ADD7AB56D621584E6FA4679CD19B07" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Variable Interest Entities [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTable_C7ADD7AB56D621584E6FA4679CD19B07_label_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTable_C7ADD7AB56D621584E6FA4679CD19B07" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Variable Interest Entities [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTable" xlink:label="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_C7ADD7AB56D621584E6FA4679CD19B07" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTable_C7ADD7AB56D621584E6FA4679CD19B07" xlink:to="lab_us-gaap_ScheduleOfVariableInterestEntitiesTable_C7ADD7AB56D621584E6FA4679CD19B07" xlink:type="arc" />
    <link:label id="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_44E4F60D956A03284887A4679CD19C64_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_44E4F60D956A03284887A4679CD19C64" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Entities [Axis]</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_44E4F60D956A03284887A4679CD19C64_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_44E4F60D956A03284887A4679CD19C64" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entities [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:label="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_44E4F60D956A03284887A4679CD19C64" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_44E4F60D956A03284887A4679CD19C64" xlink:to="lab_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis_44E4F60D956A03284887A4679CD19C64" xlink:type="arc" />
    <link:label id="lab_us-gaap_ClassificationOfVariableInterestEntityDomain_B7238B5C71DC86AA96D1A4679CD19D67_terseLabel_en-US" xlink:label="lab_us-gaap_ClassificationOfVariableInterestEntityDomain_B7238B5C71DC86AA96D1A4679CD19D67" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Classification [Domain]</link:label>
    <link:label id="lab_us-gaap_ClassificationOfVariableInterestEntityDomain_B7238B5C71DC86AA96D1A4679CD19D67_label_en-US" xlink:label="lab_us-gaap_ClassificationOfVariableInterestEntityDomain_B7238B5C71DC86AA96D1A4679CD19D67" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Classification [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:label="loc_us-gaap_ClassificationOfVariableInterestEntityDomain_B7238B5C71DC86AA96D1A4679CD19D67" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ClassificationOfVariableInterestEntityDomain_B7238B5C71DC86AA96D1A4679CD19D67" xlink:to="lab_us-gaap_ClassificationOfVariableInterestEntityDomain_B7238B5C71DC86AA96D1A4679CD19D67" xlink:type="arc" />
    <link:label id="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_89143FAAE8FE98F68F57A4679CD143AB_verboseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_89143FAAE8FE98F68F57A4679CD143AB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Consolidated VIEs</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_89143FAAE8FE98F68F57A4679CD143AB_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_89143FAAE8FE98F68F57A4679CD143AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Primary Beneficiary [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_89143FAAE8FE98F68F57A4679CD143AB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_89143FAAE8FE98F68F57A4679CD143AB" xlink:to="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_89143FAAE8FE98F68F57A4679CD143AB" xlink:type="arc" />
    <link:label id="lab_us-gaap_BalanceSheetLocationAxis_DC3F9AAE7743199F055CA4679CD13004_terseLabel_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationAxis_DC3F9AAE7743199F055CA4679CD13004" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Axis]</link:label>
    <link:label id="lab_us-gaap_BalanceSheetLocationAxis_DC3F9AAE7743199F055CA4679CD13004_label_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationAxis_DC3F9AAE7743199F055CA4679CD13004" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_DC3F9AAE7743199F055CA4679CD13004" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_DC3F9AAE7743199F055CA4679CD13004" xlink:to="lab_us-gaap_BalanceSheetLocationAxis_DC3F9AAE7743199F055CA4679CD13004" xlink:type="arc" />
    <link:label id="lab_us-gaap_BalanceSheetLocationDomain_89C95CE00C86707A4576A4679CD1A566_terseLabel_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationDomain_89C95CE00C86707A4576A4679CD1A566" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Domain]</link:label>
    <link:label id="lab_us-gaap_BalanceSheetLocationDomain_89C95CE00C86707A4576A4679CD1A566_label_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationDomain_89C95CE00C86707A4576A4679CD1A566" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_89C95CE00C86707A4576A4679CD1A566" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_89C95CE00C86707A4576A4679CD1A566" xlink:to="lab_us-gaap_BalanceSheetLocationDomain_89C95CE00C86707A4576A4679CD1A566" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansReceivableMember_11EB31484E82E8197D4EA4679CD145B8_terseLabel_en-US" xlink:label="lab_us-gaap_LoansReceivableMember_11EB31484E82E8197D4EA4679CD145B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans Receivable</link:label>
    <link:label id="lab_us-gaap_LoansReceivableMember_11EB31484E82E8197D4EA4679CD145B8_label_en-US" xlink:label="lab_us-gaap_LoansReceivableMember_11EB31484E82E8197D4EA4679CD145B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans Receivable [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansReceivableMember" xlink:label="loc_us-gaap_LoansReceivableMember_11EB31484E82E8197D4EA4679CD145B8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansReceivableMember_11EB31484E82E8197D4EA4679CD145B8" xlink:to="lab_us-gaap_LoansReceivableMember_11EB31484E82E8197D4EA4679CD145B8" xlink:type="arc" />
    <link:label id="lab_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72_terseLabel_en-US" xlink:label="lab_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued Interest Receivable</link:label>
    <link:label id="lab_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72_label_en-US" xlink:label="lab_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Interest Receivable [Member]</link:label>
    <link:label id="lab_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72_documentation_en-US" xlink:label="lab_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Primary financial statement caption encompassing accrued interest receivable.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AccruedInterestReceivableMember" xlink:label="loc_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72" xlink:to="lab_gbci_AccruedInterestReceivableMember_64BB31ADA5E121FC9D2BA4679CD14E72" xlink:type="arc" />
    <link:label id="lab_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_2B9471F841EFA017EF9FA4679CD1C9A7_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_2B9471F841EFA017EF9FA4679CD1C9A7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Assets</link:label>
    <link:label id="lab_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_2B9471F841EFA017EF9FA4679CD1C9A7_label_en-US" xlink:label="lab_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_2B9471F841EFA017EF9FA4679CD1C9A7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prepaid Expenses and Other Current Assets [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember" xlink:label="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_2B9471F841EFA017EF9FA4679CD1C9A7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_2B9471F841EFA017EF9FA4679CD1C9A7" xlink:to="lab_us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_2B9471F841EFA017EF9FA4679CD1C9A7" xlink:type="arc" />
    <link:label id="lab_us-gaap_BorrowingsMember_5DF6E1FC78974C372332A4679CD1381D_terseLabel_en-US" xlink:label="lab_us-gaap_BorrowingsMember_5DF6E1FC78974C372332A4679CD1381D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Borrowed Funds</link:label>
    <link:label id="lab_us-gaap_BorrowingsMember_5DF6E1FC78974C372332A4679CD1381D_label_en-US" xlink:label="lab_us-gaap_BorrowingsMember_5DF6E1FC78974C372332A4679CD1381D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Borrowings [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BorrowingsMember" xlink:label="loc_us-gaap_BorrowingsMember_5DF6E1FC78974C372332A4679CD1381D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BorrowingsMember_5DF6E1FC78974C372332A4679CD1381D" xlink:to="lab_us-gaap_BorrowingsMember_5DF6E1FC78974C372332A4679CD1381D" xlink:type="arc" />
    <link:label id="lab_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D_terseLabel_en-US" xlink:label="lab_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued Interest Payable</link:label>
    <link:label id="lab_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D_label_en-US" xlink:label="lab_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued Interest Payable [Member]</link:label>
    <link:label id="lab_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D_documentation_en-US" xlink:label="lab_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Primary financial statement caption encompassing accrued interest payable.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AccruedInterestPayableMember" xlink:label="loc_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D" xlink:to="lab_gbci_AccruedInterestPayableMember_A84C9D52D5A3939BBDAEA4679CD1756D" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_77DD8D7D3A4B38215455A4679CD1A829_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_77DD8D7D3A4B38215455A4679CD1A829" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Liabilities</link:label>
    <link:label id="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_77DD8D7D3A4B38215455A4679CD1A829_label_en-US" xlink:label="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_77DD8D7D3A4B38215455A4679CD1A829" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Payable and Accrued Liabilities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesMember" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_77DD8D7D3A4B38215455A4679CD1A829" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_77DD8D7D3A4B38215455A4679CD1A829" xlink:to="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_77DD8D7D3A4B38215455A4679CD1A829" xlink:type="arc" />
    <link:label id="lab_us-gaap_VariableInterestEntityLineItems_FB9D41D34D98DAD16CC1A4679CD11902_verboseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityLineItems_FB9D41D34D98DAD16CC1A4679CD11902" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Consolidated VIEs</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityLineItems_FB9D41D34D98DAD16CC1A4679CD11902_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityLineItems_FB9D41D34D98DAD16CC1A4679CD11902" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableInterestEntityLineItems" xlink:label="loc_us-gaap_VariableInterestEntityLineItems_FB9D41D34D98DAD16CC1A4679CD11902" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityLineItems_FB9D41D34D98DAD16CC1A4679CD11902" xlink:to="lab_us-gaap_VariableInterestEntityLineItems_FB9D41D34D98DAD16CC1A4679CD11902" xlink:type="arc" />
    <link:label id="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets_786E4D64F091A6D503FCA4679CD1C08E_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets_786E4D64F091A6D503FCA4679CD1C08E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets_786E4D64F091A6D503FCA4679CD1C08E_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets_786E4D64F091A6D503FCA4679CD1C08E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Consolidated, Carrying Amount, Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets" xlink:label="loc_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets_786E4D64F091A6D503FCA4679CD1C08E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets_786E4D64F091A6D503FCA4679CD1C08E" xlink:to="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountAssets_786E4D64F091A6D503FCA4679CD1C08E" xlink:type="arc" />
    <link:label id="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_B0723E1A8253F42A8D5BA4679CD13C32_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_B0723E1A8253F42A8D5BA4679CD13C32" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_B0723E1A8253F42A8D5BA4679CD13C32_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_B0723E1A8253F42A8D5BA4679CD13C32" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Consolidated, Carrying Amount, Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities" xlink:label="loc_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_B0723E1A8253F42A8D5BA4679CD13C32" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_B0723E1A8253F42A8D5BA4679CD13C32" xlink:to="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_B0723E1A8253F42A8D5BA4679CD13C32" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueByAssetClassAxis_DDC610EE91F1A9D273B2A573A742C7D8_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByAssetClassAxis_DDC610EE91F1A9D273B2A573A742C7D8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value by Asset Class [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByAssetClassAxis_DDC610EE91F1A9D273B2A573A742C7D8_label_en-US" xlink:label="lab_us-gaap_FairValueByAssetClassAxis_DDC610EE91F1A9D273B2A573A742C7D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asset Class [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByAssetClassAxis" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_DDC610EE91F1A9D273B2A573A742C7D8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_DDC610EE91F1A9D273B2A573A742C7D8" xlink:to="lab_us-gaap_FairValueByAssetClassAxis_DDC610EE91F1A9D273B2A573A742C7D8" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_123272D97B1FB937018BA573A742D2D6_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_123272D97B1FB937018BA573A742D2D6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Class [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_123272D97B1FB937018BA573A742D2D6_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_123272D97B1FB937018BA573A742D2D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Asset Class [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_123272D97B1FB937018BA573A742D2D6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_123272D97B1FB937018BA573A742D2D6" xlink:to="lab_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_123272D97B1FB937018BA573A742D2D6" xlink:type="arc" />
    <link:label id="lab_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_BCFFBE11A0A2D2491764A573A7421286_verboseLabel_en-US" xlink:label="lab_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_BCFFBE11A0A2D2491764A573A7421286" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">U.S. government and federal agency</link:label>
    <link:label id="lab_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_BCFFBE11A0A2D2491764A573A7421286_label_en-US" xlink:label="lab_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_BCFFBE11A0A2D2491764A573A7421286" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US Government Agencies Debt Securities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_USGovernmentAgenciesDebtSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_BCFFBE11A0A2D2491764A573A7421286" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_BCFFBE11A0A2D2491764A573A7421286" xlink:to="lab_us-gaap_USGovernmentAgenciesDebtSecuritiesMember_BCFFBE11A0A2D2491764A573A7421286" xlink:type="arc" />
    <link:label id="lab_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_07FC1FC9A80DA989CEB5A573A7429653_verboseLabel_en-US" xlink:label="lab_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_07FC1FC9A80DA989CEB5A573A7429653" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">U.S. government sponsored enterprises</link:label>
    <link:label id="lab_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_07FC1FC9A80DA989CEB5A573A7429653_label_en-US" xlink:label="lab_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_07FC1FC9A80DA989CEB5A573A7429653" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US Government-sponsored Enterprises Debt Securities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_07FC1FC9A80DA989CEB5A573A7429653" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_07FC1FC9A80DA989CEB5A573A7429653" xlink:to="lab_us-gaap_USGovernmentSponsoredEnterprisesDebtSecuritiesMember_07FC1FC9A80DA989CEB5A573A7429653" xlink:type="arc" />
    <link:label id="lab_us-gaap_USStatesAndPoliticalSubdivisionsMember_27436940A0712CE0FF40A573A7420127_verboseLabel_en-US" xlink:label="lab_us-gaap_USStatesAndPoliticalSubdivisionsMember_27436940A0712CE0FF40A573A7420127" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">State and local governments</link:label>
    <link:label id="lab_us-gaap_USStatesAndPoliticalSubdivisionsMember_27436940A0712CE0FF40A573A7420127_label_en-US" xlink:label="lab_us-gaap_USStatesAndPoliticalSubdivisionsMember_27436940A0712CE0FF40A573A7420127" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">US States and Political Subdivisions Debt Securities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_USStatesAndPoliticalSubdivisionsMember" xlink:label="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_27436940A0712CE0FF40A573A7420127" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_USStatesAndPoliticalSubdivisionsMember_27436940A0712CE0FF40A573A7420127" xlink:to="lab_us-gaap_USStatesAndPoliticalSubdivisionsMember_27436940A0712CE0FF40A573A7420127" xlink:type="arc" />
    <link:label id="lab_us-gaap_CorporateBondSecuritiesMember_C11BCC37E4222CC14A4AA573A7422534_terseLabel_en-US" xlink:label="lab_us-gaap_CorporateBondSecuritiesMember_C11BCC37E4222CC14A4AA573A7422534" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Corporate bonds</link:label>
    <link:label id="lab_us-gaap_CorporateBondSecuritiesMember_C11BCC37E4222CC14A4AA573A7422534_label_en-US" xlink:label="lab_us-gaap_CorporateBondSecuritiesMember_C11BCC37E4222CC14A4AA573A7422534" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate Bond Securities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CorporateBondSecuritiesMember" xlink:label="loc_us-gaap_CorporateBondSecuritiesMember_C11BCC37E4222CC14A4AA573A7422534" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CorporateBondSecuritiesMember_C11BCC37E4222CC14A4AA573A7422534" xlink:to="lab_us-gaap_CorporateBondSecuritiesMember_C11BCC37E4222CC14A4AA573A7422534" xlink:type="arc" />
    <link:label id="lab_us-gaap_ResidentialMortgageBackedSecuritiesMember_ABA51250FDA4F3C29FB9A58459EFFB86_terseLabel_en-US" xlink:label="lab_us-gaap_ResidentialMortgageBackedSecuritiesMember_ABA51250FDA4F3C29FB9A58459EFFB86" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Residential mortgage backed securities</link:label>
    <link:label id="lab_us-gaap_ResidentialMortgageBackedSecuritiesMember_ABA51250FDA4F3C29FB9A58459EFFB86_label_en-US" xlink:label="lab_us-gaap_ResidentialMortgageBackedSecuritiesMember_ABA51250FDA4F3C29FB9A58459EFFB86" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Residential Mortgage Backed Securities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResidentialMortgageBackedSecuritiesMember" xlink:label="loc_us-gaap_ResidentialMortgageBackedSecuritiesMember_ABA51250FDA4F3C29FB9A58459EFFB86" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ResidentialMortgageBackedSecuritiesMember_ABA51250FDA4F3C29FB9A58459EFFB86" xlink:to="lab_us-gaap_ResidentialMortgageBackedSecuritiesMember_ABA51250FDA4F3C29FB9A58459EFFB86" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommercialMortgageBackedSecuritiesMember_6D8C0DE4EA74E682A21AA5845A0E2F60_terseLabel_en-US" xlink:label="lab_us-gaap_CommercialMortgageBackedSecuritiesMember_6D8C0DE4EA74E682A21AA5845A0E2F60" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commercial mortgage backed securities</link:label>
    <link:label id="lab_us-gaap_CommercialMortgageBackedSecuritiesMember_6D8C0DE4EA74E682A21AA5845A0E2F60_label_en-US" xlink:label="lab_us-gaap_CommercialMortgageBackedSecuritiesMember_6D8C0DE4EA74E682A21AA5845A0E2F60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commercial Mortgage Backed Securities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommercialMortgageBackedSecuritiesMember" xlink:label="loc_us-gaap_CommercialMortgageBackedSecuritiesMember_6D8C0DE4EA74E682A21AA5845A0E2F60" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommercialMortgageBackedSecuritiesMember_6D8C0DE4EA74E682A21AA5845A0E2F60" xlink:to="lab_us-gaap_CommercialMortgageBackedSecuritiesMember_6D8C0DE4EA74E682A21AA5845A0E2F60" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueByLiabilityClassAxis_922010C115E19E857BFFA573A742864A_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByLiabilityClassAxis_922010C115E19E857BFFA573A742864A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value by Liability Class [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByLiabilityClassAxis_922010C115E19E857BFFA573A742864A_label_en-US" xlink:label="lab_us-gaap_FairValueByLiabilityClassAxis_922010C115E19E857BFFA573A742864A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liability Class [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByLiabilityClassAxis" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_922010C115E19E857BFFA573A742864A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_922010C115E19E857BFFA573A742864A" xlink:to="lab_us-gaap_FairValueByLiabilityClassAxis_922010C115E19E857BFFA573A742864A" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0DDBBFACE0BCC465DB6DA573A7427934_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0DDBBFACE0BCC465DB6DA573A7427934" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Liabilities, Measured on Recurring Basis, Unobservable Input Reconciliation, by Liability Class [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0DDBBFACE0BCC465DB6DA573A7427934_label_en-US" xlink:label="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0DDBBFACE0BCC465DB6DA573A7427934" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value by Liability Class [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0DDBBFACE0BCC465DB6DA573A7427934" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0DDBBFACE0BCC465DB6DA573A7427934" xlink:to="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0DDBBFACE0BCC465DB6DA573A7427934" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5F07E6C37C1B7D1C280BA573A742D0B4_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5F07E6C37C1B7D1C280BA573A742D0B4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate swaps</link:label>
    <link:label id="lab_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5F07E6C37C1B7D1C280BA573A742D0B4_label_en-US" xlink:label="lab_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5F07E6C37C1B7D1C280BA573A742D0B4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Financial Instruments, Liabilities [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember" xlink:label="loc_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5F07E6C37C1B7D1C280BA573A742D0B4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5F07E6C37C1B7D1C280BA573A742D0B4" xlink:to="lab_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_5F07E6C37C1B7D1C280BA573A742D0B4" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueMeasurementsRecurringMember_C85FCDADF521C3753525A573A742D503_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsRecurringMember_C85FCDADF521C3753525A573A742D503" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recurring measurements</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsRecurringMember_C85FCDADF521C3753525A573A742D503_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsRecurringMember_C85FCDADF521C3753525A573A742D503" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurements, Recurring [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_C85FCDADF521C3753525A573A742D503" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsRecurringMember_C85FCDADF521C3753525A573A742D503" xlink:to="lab_us-gaap_FairValueMeasurementsRecurringMember_C85FCDADF521C3753525A573A742D503" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsFairValueDisclosureAbstract_74E20D60D705255D74C6A573A74235C0_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosureAbstract_74E20D60D705255D74C6A573A74235C0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Assets</link:label>
    <link:label id="lab_us-gaap_AssetsFairValueDisclosureAbstract_74E20D60D705255D74C6A573A74235C0_label_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosureAbstract_74E20D60D705255D74C6A573A74235C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Fair Value Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_74E20D60D705255D74C6A573A74235C0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_74E20D60D705255D74C6A573A74235C0" xlink:to="lab_us-gaap_AssetsFairValueDisclosureAbstract_74E20D60D705255D74C6A573A74235C0" xlink:type="arc" />
    <link:label id="lab_us-gaap_InvestmentsFairValueDisclosure_16A80E835F6AD70085FEA573A7423C9A_verboseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsFairValueDisclosure_16A80E835F6AD70085FEA573A7423C9A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investment securities, available-for-sale</link:label>
    <link:label id="lab_us-gaap_InvestmentsFairValueDisclosure_16A80E835F6AD70085FEA573A7423C9A_label_en-US" xlink:label="lab_us-gaap_InvestmentsFairValueDisclosure_16A80E835F6AD70085FEA573A7423C9A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsFairValueDisclosure" xlink:label="loc_us-gaap_InvestmentsFairValueDisclosure_16A80E835F6AD70085FEA573A7423C9A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsFairValueDisclosure_16A80E835F6AD70085FEA573A7423C9A" xlink:to="lab_us-gaap_InvestmentsFairValueDisclosure_16A80E835F6AD70085FEA573A7423C9A" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansHeldForSaleFairValueDisclosure_AAB14E4756036A507A63A581E41AFCC4_terseLabel_en-US" xlink:label="lab_us-gaap_LoansHeldForSaleFairValueDisclosure_AAB14E4756036A507A63A581E41AFCC4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans held-for-sale</link:label>
    <link:label id="lab_us-gaap_LoansHeldForSaleFairValueDisclosure_AAB14E4756036A507A63A581E41AFCC4_label_en-US" xlink:label="lab_us-gaap_LoansHeldForSaleFairValueDisclosure_AAB14E4756036A507A63A581E41AFCC4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans Held-for-sale, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansHeldForSaleFairValueDisclosure" xlink:label="loc_us-gaap_LoansHeldForSaleFairValueDisclosure_AAB14E4756036A507A63A581E41AFCC4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansHeldForSaleFairValueDisclosure_AAB14E4756036A507A63A581E41AFCC4" xlink:to="lab_us-gaap_LoansHeldForSaleFairValueDisclosure_AAB14E4756036A507A63A581E41AFCC4" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsFairValueDisclosure_D4A37156667CA603A88AA573A742E154_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosure_D4A37156667CA603A88AA573A742E154" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total assets measured at fair value on a recurring basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_D4A37156667CA603A88AA573A742E154" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsFairValueDisclosure_D4A37156667CA603A88AA573A742E154" xlink:to="lab_us-gaap_AssetsFairValueDisclosure_D4A37156667CA603A88AA573A742E154" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_6DFDBD72C8FD008BD0B1A573A7423B18_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_6DFDBD72C8FD008BD0B1A573A7423B18" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Liabilities</link:label>
    <link:label id="lab_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_6DFDBD72C8FD008BD0B1A573A7423B18_label_en-US" xlink:label="lab_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_6DFDBD72C8FD008BD0B1A573A7423B18" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities Fair Value Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_6DFDBD72C8FD008BD0B1A573A7423B18" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_6DFDBD72C8FD008BD0B1A573A7423B18" xlink:to="lab_us-gaap_FinancialLiabilitiesFairValueDisclosureAbstract_6DFDBD72C8FD008BD0B1A573A7423B18" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeLiabilities_6BBA855B734E5F2E08C5A573A7420166_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities_6BBA855B734E5F2E08C5A573A7420166" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate swaps</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilities_6BBA855B734E5F2E08C5A573A7420166_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities_6BBA855B734E5F2E08C5A573A7420166" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liability</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="loc_us-gaap_DerivativeLiabilities_6BBA855B734E5F2E08C5A573A7420166" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLiabilities_6BBA855B734E5F2E08C5A573A7420166" xlink:to="lab_us-gaap_DerivativeLiabilities_6BBA855B734E5F2E08C5A573A7420166" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancialLiabilitiesFairValueDisclosure_BB734EF8A11C545CCC1CA573A742EF9E_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialLiabilitiesFairValueDisclosure_BB734EF8A11C545CCC1CA573A742EF9E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total liabilities measured at fair value on a recurring basis</link:label>
    <link:label id="lab_us-gaap_FinancialLiabilitiesFairValueDisclosure_BB734EF8A11C545CCC1CA573A742EF9E_label_en-US" xlink:label="lab_us-gaap_FinancialLiabilitiesFairValueDisclosure_BB734EF8A11C545CCC1CA573A742EF9E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Liabilities Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_BB734EF8A11C545CCC1CA573A742EF9E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_BB734EF8A11C545CCC1CA573A742EF9E" xlink:to="lab_us-gaap_FinancialLiabilitiesFairValueDisclosure_BB734EF8A11C545CCC1CA573A742EF9E" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareAbstract_E378AFC6A73879576E41759877B7BE2C_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareAbstract_1AA0F4945B6C527A94C521CCD4E830A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareAbstract" xlink:label="loc_us-gaap_EarningsPerShareAbstract_1AA0F4945B6C527A94C521CCD4E830A2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareAbstract_1AA0F4945B6C527A94C521CCD4E830A2" xlink:to="lab_us-gaap_EarningsPerShareAbstract_1AA0F4945B6C527A94C521CCD4E830A2" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_3A03853CD8A6DFC47C6B759877B77B1F_verboseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock_FAC13D83F2C252BF98E5A18064E6FECA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Earnings Per Share</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_3A03853CD8A6DFC47C6B759877B77B1F_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock_FAC13D83F2C252BF98E5A18064E6FECA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_FAC13D83F2C252BF98E5A18064E6FECA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareTextBlock_FAC13D83F2C252BF98E5A18064E6FECA" xlink:to="lab_us-gaap_EarningsPerShareTextBlock_FAC13D83F2C252BF98E5A18064E6FECA" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_74E27D5A941273FCD130759878DE35B1_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_ACD0924A79D35B289CBC3CBC6BAA77C4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of consolidated income tax expense</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_74E27D5A941273FCD130759878DE35B1_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_ACD0924A79D35B289CBC3CBC6BAA77C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Expense (Benefit), Continuing Operations [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_ACD0924A79D35B289CBC3CBC6BAA77C4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_ACD0924A79D35B289CBC3CBC6BAA77C4" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract_ACD0924A79D35B289CBC3CBC6BAA77C4" xlink:type="arc" />
    <link:label id="lab_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_16C4D518606D3B03D70C759878DE8BF6_verboseLabel_en-US" xlink:label="lab_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_4CBDF92FAC8E5F30AEEB9B80844F3331" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Current</link:label>
    <link:label id="lab_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_16C4D518606D3B03D70C759878DE8BF6_label_en-US" xlink:label="lab_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_4CBDF92FAC8E5F30AEEB9B80844F3331" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Income Tax Expense (Benefit), Continuing Operations [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_4CBDF92FAC8E5F30AEEB9B80844F3331" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_4CBDF92FAC8E5F30AEEB9B80844F3331" xlink:to="lab_us-gaap_CurrentIncomeTaxExpenseBenefitContinuingOperationsAbstract_4CBDF92FAC8E5F30AEEB9B80844F3331" xlink:type="arc" />
    <link:label id="lab_us-gaap_CurrentFederalTaxExpenseBenefit_BF3E15137550FC2F410F759878DED9EA_verboseLabel_en-US" xlink:label="lab_us-gaap_CurrentFederalTaxExpenseBenefit_355C004BD1105CB8ABFAD30DF1CC10A3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Federal</link:label>
    <link:label id="lab_us-gaap_CurrentFederalTaxExpenseBenefit_BF3E15137550FC2F410F759878DED9EA_label_en-US" xlink:label="lab_us-gaap_CurrentFederalTaxExpenseBenefit_355C004BD1105CB8ABFAD30DF1CC10A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Federal Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_355C004BD1105CB8ABFAD30DF1CC10A3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CurrentFederalTaxExpenseBenefit_355C004BD1105CB8ABFAD30DF1CC10A3" xlink:to="lab_us-gaap_CurrentFederalTaxExpenseBenefit_355C004BD1105CB8ABFAD30DF1CC10A3" xlink:type="arc" />
    <link:label id="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_A36B8B276545668FE7D0759878DEADBC_verboseLabel_en-US" xlink:label="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_8F3F02E3A31356FCA1517ADA06D120A7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">State</link:label>
    <link:label id="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_A36B8B276545668FE7D0759878DEADBC_label_en-US" xlink:label="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_8F3F02E3A31356FCA1517ADA06D120A7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current State and Local Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_8F3F02E3A31356FCA1517ADA06D120A7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_8F3F02E3A31356FCA1517ADA06D120A7" xlink:to="lab_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_8F3F02E3A31356FCA1517ADA06D120A7" xlink:type="arc" />
    <link:label id="lab_us-gaap_CurrentIncomeTaxExpenseBenefit_84AB32E956D25817BB89759878DEB78A_totalLabel_en-US" xlink:label="lab_us-gaap_CurrentIncomeTaxExpenseBenefit_B8DF5CC6738E5D3A887F30C6BA567DF1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current income tax expense</link:label>
    <link:label id="lab_us-gaap_CurrentIncomeTaxExpenseBenefit_84AB32E956D25817BB89759878DEB78A_label_en-US" xlink:label="lab_us-gaap_CurrentIncomeTaxExpenseBenefit_B8DF5CC6738E5D3A887F30C6BA567DF1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_B8DF5CC6738E5D3A887F30C6BA567DF1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_B8DF5CC6738E5D3A887F30C6BA567DF1" xlink:to="lab_us-gaap_CurrentIncomeTaxExpenseBenefit_B8DF5CC6738E5D3A887F30C6BA567DF1" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_34D0E4821AAC64E78320759878DE50CA_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_E4403F224A3D5A60A19E76094234B19C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_34D0E4821AAC64E78320759878DE50CA_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_E4403F224A3D5A60A19E76094234B19C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_E4403F224A3D5A60A19E76094234B19C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_E4403F224A3D5A60A19E76094234B19C" xlink:to="lab_us-gaap_DeferredIncomeTaxExpenseBenefitContinuingOperationsAbstract_E4403F224A3D5A60A19E76094234B19C" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_8EF8748DC59E21E0FECF759878DEFB97_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_BBE8AB5B910A5BC09E1E7DFCDB9057D7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Federal</link:label>
    <link:label id="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_8EF8748DC59E21E0FECF759878DEFB97_label_en-US" xlink:label="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_BBE8AB5B910A5BC09E1E7DFCDB9057D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Federal Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_BBE8AB5B910A5BC09E1E7DFCDB9057D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_BBE8AB5B910A5BC09E1E7DFCDB9057D7" xlink:to="lab_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_BBE8AB5B910A5BC09E1E7DFCDB9057D7" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_6A0166239981D18E7794759878DE18C8_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_2FDF066045095B37949D7FEF3E5E89A3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">State</link:label>
    <link:label id="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_6A0166239981D18E7794759878DE18C8_label_en-US" xlink:label="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_2FDF066045095B37949D7FEF3E5E89A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred State and Local Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_2FDF066045095B37949D7FEF3E5E89A3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_2FDF066045095B37949D7FEF3E5E89A3" xlink:to="lab_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_2FDF066045095B37949D7FEF3E5E89A3" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_BDBECD556D3F84FA47D1759878DE25CB_totalLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_E3B8D0002C635195AB5660DBB7D350CF" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total deferred income tax (benefit) expense</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_BDBECD556D3F84FA47D1759878DE25CB_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_E3B8D0002C635195AB5660DBB7D350CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_E3B8D0002C635195AB5660DBB7D350CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_E3B8D0002C635195AB5660DBB7D350CF" xlink:to="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_E3B8D0002C635195AB5660DBB7D350CF" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_5685979403565C600CEF759878DECAEA_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_F6C78814D06F52BEB8904D80268B9DDF" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total income tax expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_F6C78814D06F52BEB8904D80268B9DDF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_F6C78814D06F52BEB8904D80268B9DDF" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit_F6C78814D06F52BEB8904D80268B9DDF" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherTaxExpenseBenefit_AB96FD819FE5A314F958759878DE4F9E_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherTaxExpenseBenefit_F4271F63E82A569982DC0E77755F9FA1" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Tax benefit of operating loss carryforwards</link:label>
    <link:label id="lab_us-gaap_OtherTaxExpenseBenefit_AB96FD819FE5A314F958759878DE4F9E_label_en-US" xlink:label="lab_us-gaap_OtherTaxExpenseBenefit_F4271F63E82A569982DC0E77755F9FA1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Tax Expense (Benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherTaxExpenseBenefit" xlink:label="loc_us-gaap_OtherTaxExpenseBenefit_F4271F63E82A569982DC0E77755F9FA1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherTaxExpenseBenefit_F4271F63E82A569982DC0E77755F9FA1" xlink:to="lab_us-gaap_OtherTaxExpenseBenefit_F4271F63E82A569982DC0E77755F9FA1" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_CE31196A01EBF0ADAB1C7598775B0563_verboseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_1E97262D7E2A52CB83E18F47810E1C9A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair Value of Assets and Liabilities</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosuresTextBlock_CE31196A01EBF0ADAB1C7598775B0563_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresTextBlock_1E97262D7E2A52CB83E18F47810E1C9A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Disclosures [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_1E97262D7E2A52CB83E18F47810E1C9A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresTextBlock_1E97262D7E2A52CB83E18F47810E1C9A" xlink:to="lab_us-gaap_FairValueDisclosuresTextBlock_1E97262D7E2A52CB83E18F47810E1C9A" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_A09C5FF1C855D886B42CA65DC8A1074E_verboseLabel_en-US" xlink:label="lab_us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_A09C5FF1C855D886B42CA65DC8A1074E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of net deferred tax asset</link:label>
    <link:label id="lab_us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_A09C5FF1C855D886B42CA65DC8A1074E_label_en-US" xlink:label="lab_us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_A09C5FF1C855D886B42CA65DC8A1074E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of Deferred Tax Assets and Liabilities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xlink:label="loc_us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_A09C5FF1C855D886B42CA65DC8A1074E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_A09C5FF1C855D886B42CA65DC8A1074E" xlink:to="lab_us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_A09C5FF1C855D886B42CA65DC8A1074E" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_6977FE1A5497FF609443A65DC8A16BA4_verboseLabel_en-US" xlink:label="lab_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_6977FE1A5497FF609443A65DC8A16BA4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax assets</link:label>
    <link:label id="lab_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_6977FE1A5497FF609443A65DC8A16BA4_label_en-US" xlink:label="lab_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_6977FE1A5497FF609443A65DC8A16BA4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Components of Deferred Tax Assets [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComponentsOfDeferredTaxAssetsAbstract" xlink:label="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_6977FE1A5497FF609443A65DC8A16BA4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_6977FE1A5497FF609443A65DC8A16BA4" xlink:to="lab_us-gaap_ComponentsOfDeferredTaxAssetsAbstract_6977FE1A5497FF609443A65DC8A16BA4" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses_67D0132CF34C9AC8949DA65DC8A1DC15_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses_67D0132CF34C9AC8949DA65DC8A1DC15" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Allowance for loan and lease losses</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses_67D0132CF34C9AC8949DA65DC8A1DC15_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses_67D0132CF34C9AC8949DA65DC8A1DC15" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses_67D0132CF34C9AC8949DA65DC8A1DC15" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses_67D0132CF34C9AC8949DA65DC8A1DC15" xlink:to="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses_67D0132CF34C9AC8949DA65DC8A1DC15" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_830A0734CD1043015B20A65DC8A1437E_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_830A0734CD1043015B20A65DC8A1437E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred compensation</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_830A0734CD1043015B20A65DC8A1437E_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_830A0734CD1043015B20A65DC8A1437E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_830A0734CD1043015B20A65DC8A1437E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_830A0734CD1043015B20A65DC8A1437E" xlink:to="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_830A0734CD1043015B20A65DC8A1437E" xlink:type="arc" />
    <link:label id="lab_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2_verboseLabel_en-US" xlink:label="lab_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other real estate owned</link:label>
    <link:label id="lab_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2_label_en-US" xlink:label="lab_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Other Real Estate Owned</link:label>
    <link:label id="lab_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2_documentation_en-US" xlink:label="lab_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from other real estate owned.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DeferredTaxAssetsOtherRealEstateOwned" xlink:label="loc_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2" xlink:to="lab_gbci_DeferredTaxAssetsOtherRealEstateOwned_A738AB85B42F2150C0CCA65DC8A131B2" xlink:type="arc" />
    <link:label id="lab_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D_terseLabel_en-US" xlink:label="lab_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition fair market value adjustments</link:label>
    <link:label id="lab_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D_label_en-US" xlink:label="lab_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets Fair Market Value Adjustments from Acquisitions</link:label>
    <link:label id="lab_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D_documentation_en-US" xlink:label="lab_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets Fair Market Value Adjustments from Acquisitions</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions" xlink:label="loc_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D" xlink:to="lab_gbci_DeferredTaxAssetsFairMarketValueAdjustmentsfromAcquisitions_0DEF93985652F7E42DACA65DC8A1968D" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_809858E8CA28709230B3A65DC8A15C2E_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_809858E8CA28709230B3A65DC8A15C2E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net operating loss carryforwards</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_809858E8CA28709230B3A65DC8A15C2E_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_809858E8CA28709230B3A65DC8A15C2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Operating Loss Carryforwards</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_809858E8CA28709230B3A65DC8A15C2E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_809858E8CA28709230B3A65DC8A15C2E" xlink:to="lab_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_809858E8CA28709230B3A65DC8A15C2E" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_771BBCA94368E6D12D33A65DC8A125CA_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_771BBCA94368E6D12D33A65DC8A125CA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Employee benefits</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_771BBCA94368E6D12D33A65DC8A125CA_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_771BBCA94368E6D12D33A65DC8A125CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_771BBCA94368E6D12D33A65DC8A125CA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_771BBCA94368E6D12D33A65DC8A125CA" xlink:to="lab_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits_771BBCA94368E6D12D33A65DC8A125CA" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsDerivativeInstruments_56F6899BCD5A4A11FD41A65DC8A1FCC4_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsDerivativeInstruments_56F6899BCD5A4A11FD41A65DC8A1FCC4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest rate swap agreements</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsDerivativeInstruments_56F6899BCD5A4A11FD41A65DC8A1FCC4_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsDerivativeInstruments_56F6899BCD5A4A11FD41A65DC8A1FCC4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Derivative Instruments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsDerivativeInstruments" xlink:label="loc_us-gaap_DeferredTaxAssetsDerivativeInstruments_56F6899BCD5A4A11FD41A65DC8A1FCC4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsDerivativeInstruments_56F6899BCD5A4A11FD41A65DC8A1FCC4" xlink:to="lab_us-gaap_DeferredTaxAssetsDerivativeInstruments_56F6899BCD5A4A11FD41A65DC8A1FCC4" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsOther_B376C5EF6A0246AD1A34A65DC8B1CD7B_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsOther_B376C5EF6A0246AD1A34A65DC8B1CD7B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsOther_B376C5EF6A0246AD1A34A65DC8B1CD7B_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsOther_B376C5EF6A0246AD1A34A65DC8B1CD7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Other</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_B376C5EF6A0246AD1A34A65DC8B1CD7B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsOther_B376C5EF6A0246AD1A34A65DC8B1CD7B" xlink:to="lab_us-gaap_DeferredTaxAssetsOther_B376C5EF6A0246AD1A34A65DC8B1CD7B" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsGross_931CF87CDB51D64B3E75A65DC8B15971_totalLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsGross_931CF87CDB51D64B3E75A65DC8B15971" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total gross deferred tax assets</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsGross_931CF87CDB51D64B3E75A65DC8B15971_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsGross_931CF87CDB51D64B3E75A65DC8B15971" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_931CF87CDB51D64B3E75A65DC8B15971" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_931CF87CDB51D64B3E75A65DC8B15971" xlink:to="lab_us-gaap_DeferredTaxAssetsGross_931CF87CDB51D64B3E75A65DC8B15971" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesAbstract_6B4F63803CCF2268A0AEA65DC8B14CE3_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesAbstract_6B4F63803CCF2268A0AEA65DC8B14CE3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesAbstract_6B4F63803CCF2268A0AEA65DC8B14CE3_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesAbstract_6B4F63803CCF2268A0AEA65DC8B14CE3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Gross [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesAbstract" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesAbstract_6B4F63803CCF2268A0AEA65DC8B14CE3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesAbstract_6B4F63803CCF2268A0AEA65DC8B14CE3" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesAbstract_6B4F63803CCF2268A0AEA65DC8B14CE3" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_F63A5CD222B5E89B2727A67A9591F82C_negatedLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_F63A5CD222B5E89B2727A67A9591F82C" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Deferred loan costs</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_F63A5CD222B5E89B2727A67A9591F82C_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_F63A5CD222B5E89B2727A67A9591F82C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Tax Deferred Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_F63A5CD222B5E89B2727A67A9591F82C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_F63A5CD222B5E89B2727A67A9591F82C" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome_F63A5CD222B5E89B2727A67A9591F82C" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9474C0F2A5B65F242E21A65DC8B1833D_negatedLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9474C0F2A5B65F242E21A65DC8B1833D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Intangibles</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9474C0F2A5B65F242E21A65DC8B1833D_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9474C0F2A5B65F242E21A65DC8B1833D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Intangible Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9474C0F2A5B65F242E21A65DC8B1833D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9474C0F2A5B65F242E21A65DC8B1833D" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_9474C0F2A5B65F242E21A65DC8B1833D" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_15839D5EAB063E339FBEA65DC8B14EFB_negatedLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_15839D5EAB063E339FBEA65DC8B14EFB" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Depreciation of premises and equipment</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_15839D5EAB063E339FBEA65DC8B14EFB_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_15839D5EAB063E339FBEA65DC8B14EFB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Property, Plant and Equipment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_15839D5EAB063E339FBEA65DC8B14EFB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_15839D5EAB063E339FBEA65DC8B14EFB" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment_15839D5EAB063E339FBEA65DC8B14EFB" xlink:type="arc" />
    <link:label id="lab_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87_negatedLabel_en-US" xlink:label="lab_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">FHLB stock dividends</link:label>
    <link:label id="lab_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87_label_en-US" xlink:label="lab_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities Stock Dividends</link:label>
    <link:label id="lab_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87_documentation_en-US" xlink:label="lab_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred tax liabilities stock dividends.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DeferredTaxLiabilitiesStockDividends" xlink:label="loc_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87" xlink:to="lab_gbci_DeferredTaxLiabilitiesStockDividends_27434272B422A7582919A65DC8B11A87" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_021DB8A0B8E470D3E169A65DC8B1E692_negatedLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_021DB8A0B8E470D3E169A65DC8B1E692" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Available-for-sale securities</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_021DB8A0B8E470D3E169A65DC8B1E692_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_021DB8A0B8E470D3E169A65DC8B1E692" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Other Comprehensive Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_021DB8A0B8E470D3E169A65DC8B1E692" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_021DB8A0B8E470D3E169A65DC8B1E692" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesOtherComprehensiveIncome_021DB8A0B8E470D3E169A65DC8B1E692" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts_9AC992A3B357DEE1E2DEA667EE958A6F_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts_9AC992A3B357DEE1E2DEA667EE958A6F" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Debt modification costs</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts_9AC992A3B357DEE1E2DEA667EE958A6F_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts_9AC992A3B357DEE1E2DEA667EE958A6F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Deferred Expense, Debt Issuance Costs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts_9AC992A3B357DEE1E2DEA667EE958A6F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts_9AC992A3B357DEE1E2DEA667EE958A6F" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts_9AC992A3B357DEE1E2DEA667EE958A6F" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesOther_F443C1BE8FC0E2DEB234A65DC8B1A8B8_negatedLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesOther_F443C1BE8FC0E2DEB234A65DC8B1A8B8" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_DeferredTaxLiabilitiesOther_F443C1BE8FC0E2DEB234A65DC8B1A8B8_label_en-US" xlink:label="lab_us-gaap_DeferredTaxLiabilitiesOther_F443C1BE8FC0E2DEB234A65DC8B1A8B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Other</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_F443C1BE8FC0E2DEB234A65DC8B1A8B8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxLiabilitiesOther_F443C1BE8FC0E2DEB234A65DC8B1A8B8" xlink:to="lab_us-gaap_DeferredTaxLiabilitiesOther_F443C1BE8FC0E2DEB234A65DC8B1A8B8" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilities_C462B97C88E2EF8C3E79A65DC8B17436_negatedTotalLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilities_C462B97C88E2EF8C3E79A65DC8B17436" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Total gross deferred tax liabilities</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilities_C462B97C88E2EF8C3E79A65DC8B17436_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilities_C462B97C88E2EF8C3E79A65DC8B17436" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Liabilities, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_C462B97C88E2EF8C3E79A65DC8B17436" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_C462B97C88E2EF8C3E79A65DC8B17436" xlink:to="lab_us-gaap_DeferredIncomeTaxLiabilities_C462B97C88E2EF8C3E79A65DC8B17436" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_E76CDDCCB2CE8659B2BCA65DC8B1607E_totalLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_E76CDDCCB2CE8659B2BCA65DC8B1607E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net deferred tax asset</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_E76CDDCCB2CE8659B2BCA65DC8B1607E_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_E76CDDCCB2CE8659B2BCA65DC8B1607E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_E76CDDCCB2CE8659B2BCA65DC8B1607E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsLiabilitiesNet_E76CDDCCB2CE8659B2BCA65DC8B1607E" xlink:to="lab_us-gaap_DeferredTaxAssetsLiabilitiesNet_E76CDDCCB2CE8659B2BCA65DC8B1607E" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_4BF5D592539F43205ADF759877005E9B_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_F0E6A31DECA25AEFA4BC4507042AE367" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair value measurement of assets and liabilities measured at fair value on a recurring basis</link:label>
    <link:label id="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_4BF5D592539F43205ADF759877005E9B_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_F0E6A31DECA25AEFA4BC4507042AE367" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_F0E6A31DECA25AEFA4BC4507042AE367" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_F0E6A31DECA25AEFA4BC4507042AE367" xlink:to="lab_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_F0E6A31DECA25AEFA4BC4507042AE367" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_E2BA759A4D3E53C3D33A75987701EDCC_verboseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_B5E5CC57E4AB59838E14907373A1780B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair value measurement of assets measured at fair value on a non-recurring basis</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_E2BA759A4D3E53C3D33A75987701EDCC_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_B5E5CC57E4AB59838E14907373A1780B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurements, Nonrecurring [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_B5E5CC57E4AB59838E14907373A1780B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_B5E5CC57E4AB59838E14907373A1780B" xlink:to="lab_us-gaap_FairValueAssetsMeasuredOnNonrecurringBasisTextBlock_B5E5CC57E4AB59838E14907373A1780B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock_40162A9FA20B13B4B77C75987701CBEC_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock_F15EF70499025AEAB859E3D381D0DA72" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Quantitative information about assets measured at fair value on a non-recurring basis for which Level 3 inputs were used</link:label>
    <link:label id="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock_40162A9FA20B13B4B77C75987701CBEC_label_en-US" xlink:label="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock_F15EF70499025AEAB859E3D381D0DA72" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Inputs, Assets, Quantitative Information [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock" xlink:label="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock_F15EF70499025AEAB859E3D381D0DA72" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock_F15EF70499025AEAB859E3D381D0DA72" xlink:to="lab_us-gaap_FairValueInputsAssetsQuantitativeInformationTableTextBlock_F15EF70499025AEAB859E3D381D0DA72" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_F654A6E0E22C1DF0D43C75987701FBB7_verboseLabel_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_5A41455C2D1C51159EDC979BBF7EAAEC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Carrying amounts and estimated fair values of financial instruments</link:label>
    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_F654A6E0E22C1DF0D43C75987701FBB7_label_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_5A41455C2D1C51159EDC979BBF7EAAEC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTextBlock_5A41455C2D1C51159EDC979BBF7EAAEC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTextBlock_5A41455C2D1C51159EDC979BBF7EAAEC" xlink:to="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_5A41455C2D1C51159EDC979BBF7EAAEC" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_2920631F223DB4CAF2E9759878E25480_label_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract_E49DE85ECAC150EC8FEBA0812239C79C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="loc_us-gaap_StatementOfStockholdersEquityAbstract_E49DE85ECAC150EC8FEBA0812239C79C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfStockholdersEquityAbstract_E49DE85ECAC150EC8FEBA0812239C79C" xlink:to="lab_us-gaap_StatementOfStockholdersEquityAbstract_E49DE85ECAC150EC8FEBA0812239C79C" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementTable_10F3173A88070B07BFA2759878E24B2A_terseLabel_en-US" xlink:label="lab_us-gaap_StatementTable_A03000F8A5EF51B8A32692DAC23C49C0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement [Table]</link:label>
    <link:label id="lab_us-gaap_StatementTable_10F3173A88070B07BFA2759878E24B2A_label_en-US" xlink:label="lab_us-gaap_StatementTable_A03000F8A5EF51B8A32692DAC23C49C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_A03000F8A5EF51B8A32692DAC23C49C0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable_A03000F8A5EF51B8A32692DAC23C49C0" xlink:to="lab_us-gaap_StatementTable_A03000F8A5EF51B8A32692DAC23C49C0" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_616B1122A2BF9C614CC3759878E23C7A_terseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_4B1C7C0E766F52DEB39EA62A1BE98A89" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement, Equity Components [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_616B1122A2BF9C614CC3759878E23C7A_label_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis_4B1C7C0E766F52DEB39EA62A1BE98A89" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_4B1C7C0E766F52DEB39EA62A1BE98A89" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_4B1C7C0E766F52DEB39EA62A1BE98A89" xlink:to="lab_us-gaap_StatementEquityComponentsAxis_4B1C7C0E766F52DEB39EA62A1BE98A89" xlink:type="arc" />
    <link:label id="lab_us-gaap_EquityComponentDomain_DFDDEB4010745D5E183B759878E3BB39_terseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_8FBA2E042E02571F86F68AAE281A659E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:label id="lab_us-gaap_EquityComponentDomain_DFDDEB4010745D5E183B759878E3BB39_label_en-US" xlink:label="lab_us-gaap_EquityComponentDomain_8FBA2E042E02571F86F68AAE281A659E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_8FBA2E042E02571F86F68AAE281A659E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain_8FBA2E042E02571F86F68AAE281A659E" xlink:to="lab_us-gaap_EquityComponentDomain_8FBA2E042E02571F86F68AAE281A659E" xlink:type="arc" />
    <link:label id="lab_us-gaap_RetainedEarningsMember_065CBA2FE9069775356E759878E3B38B_verboseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_3F8FC43FBF805E02B5F837501C5026E0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Retained Earnings Substantially Restricted</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsMember_065CBA2FE9069775356E759878E3B38B_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember_3F8FC43FBF805E02B5F837501C5026E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_3F8FC43FBF805E02B5F837501C5026E0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsMember_3F8FC43FBF805E02B5F837501C5026E0" xlink:to="lab_us-gaap_RetainedEarningsMember_3F8FC43FBF805E02B5F837501C5026E0" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementLineItems_2D60B24A72CFB46738CE759878E32A7C_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_3EE383A83D00508B89DBA40DFF1AE8AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:label id="lab_us-gaap_StatementLineItems_2D60B24A72CFB46738CE759878E32A7C_label_en-US" xlink:label="lab_us-gaap_StatementLineItems_3EE383A83D00508B89DBA40DFF1AE8AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_3EE383A83D00508B89DBA40DFF1AE8AA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems_3EE383A83D00508B89DBA40DFF1AE8AA" xlink:to="lab_us-gaap_StatementLineItems_3EE383A83D00508B89DBA40DFF1AE8AA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_D84505C1B096C0C3FC9B759878E38888_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_7F4C952D4D7A5F11A2C15401FEFD6686" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash dividends declared per share</link:label>
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_D84505C1B096C0C3FC9B759878E38888_label_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_7F4C952D4D7A5F11A2C15401FEFD6686" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Dividends, Per Share, Declared</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_7F4C952D4D7A5F11A2C15401FEFD6686" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockDividendsPerShareDeclared_7F4C952D4D7A5F11A2C15401FEFD6686" xlink:to="lab_us-gaap_CommonStockDividendsPerShareDeclared_7F4C952D4D7A5F11A2C15401FEFD6686" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockMember_EC4BAC5CAA121B56EA52AF2EE6DF9B2B_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockMember_EC4BAC5CAA121B56EA52AF2EE6DF9B2B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common Stock</link:label>
    <link:label id="lab_us-gaap_CommonStockMember_EC4BAC5CAA121B56EA52AF2EE6DF9B2B_label_en-US" xlink:label="lab_us-gaap_CommonStockMember_EC4BAC5CAA121B56EA52AF2EE6DF9B2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_EC4BAC5CAA121B56EA52AF2EE6DF9B2B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockMember_EC4BAC5CAA121B56EA52AF2EE6DF9B2B" xlink:to="lab_us-gaap_CommonStockMember_EC4BAC5CAA121B56EA52AF2EE6DF9B2B" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_525FDF3A48ACADC5C8B5AF2EE6DFE5C4_verboseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember_525FDF3A48ACADC5C8B5AF2EE6DFE5C4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Paid-in Capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_525FDF3A48ACADC5C8B5AF2EE6DFE5C4_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember_525FDF3A48ACADC5C8B5AF2EE6DFE5C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid-in Capital [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_525FDF3A48ACADC5C8B5AF2EE6DFE5C4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalMember_525FDF3A48ACADC5C8B5AF2EE6DFE5C4" xlink:to="lab_us-gaap_AdditionalPaidInCapitalMember_525FDF3A48ACADC5C8B5AF2EE6DFE5C4" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_699A443FC88DD4A76CEFAF2EE6DF6322_verboseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_699A443FC88DD4A76CEFAF2EE6DF6322" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss)</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_699A443FC88DD4A76CEFAF2EE6DF6322_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_699A443FC88DD4A76CEFAF2EE6DF6322" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">AOCI Attributable to Parent [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_699A443FC88DD4A76CEFAF2EE6DF6322" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_699A443FC88DD4A76CEFAF2EE6DF6322" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeMember_699A443FC88DD4A76CEFAF2EE6DF6322" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_4AD02536B457F02E6FEDAF2EE6E0517D_periodStartLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_4AD02536B457F02E6FEDAF2EE6E0517D" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance, shares</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_4AD02536B457F02E6FEDAF2EE6E0517D_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_4AD02536B457F02E6FEDAF2EE6E0517D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock, Shares, Outstanding</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_4AD02536B457F02E6FEDAF2EE6E0517D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding_4AD02536B457F02E6FEDAF2EE6E0517D" xlink:to="lab_us-gaap_CommonStockSharesOutstanding_4AD02536B457F02E6FEDAF2EE6E0517D" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquity_33D646FECEAB31DB8923AF2EE6E074F0_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_33D646FECEAB31DB8923AF2EE6E074F0" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_33D646FECEAB31DB8923AF2EE6E074F0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity_33D646FECEAB31DB8923AF2EE6E074F0" xlink:to="lab_us-gaap_StockholdersEquity_33D646FECEAB31DB8923AF2EE6E074F0" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_6EC32869287F03EF3F16AF2EE6E046D1_verboseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_6EC32869287F03EF3F16AF2EE6E046D1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_6EC32869287F03EF3F16AF2EE6E046D1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss_6EC32869287F03EF3F16AF2EE6E046D1" xlink:to="lab_us-gaap_NetIncomeLoss_6EC32869287F03EF3F16AF2EE6E046D1" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F1E803BDD8CD079CA3ACAF2EE6E0A4E1_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F1E803BDD8CD079CA3ACAF2EE6E0A4E1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss)</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F1E803BDD8CD079CA3ACAF2EE6E0A4E1_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F1E803BDD8CD079CA3ACAF2EE6E0A4E1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F1E803BDD8CD079CA3ACAF2EE6E0A4E1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F1E803BDD8CD079CA3ACAF2EE6E0A4E1" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F1E803BDD8CD079CA3ACAF2EE6E0A4E1" xlink:type="arc" />
    <link:label id="lab_us-gaap_DividendsCommonStockCash_D23B6D154A66A130055AAF2EE6E14B79_negatedLabel_en-US" xlink:label="lab_us-gaap_DividendsCommonStockCash_D23B6D154A66A130055AAF2EE6E14B79" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cash dividends declared</link:label>
    <link:label id="lab_us-gaap_DividendsCommonStockCash_D23B6D154A66A130055AAF2EE6E14B79_label_en-US" xlink:label="lab_us-gaap_DividendsCommonStockCash_D23B6D154A66A130055AAF2EE6E14B79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Dividends, Common Stock, Cash</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="loc_us-gaap_DividendsCommonStockCash_D23B6D154A66A130055AAF2EE6E14B79" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsCommonStockCash_D23B6D154A66A130055AAF2EE6E14B79" xlink:to="lab_us-gaap_DividendsCommonStockCash_D23B6D154A66A130055AAF2EE6E14B79" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_DB4782C81E2D73D1D92BAF2EE6E17480_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_DB4782C81E2D73D1D92BAF2EE6E17480" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock issued in connection with acquisitions, shares</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_DB4782C81E2D73D1D92BAF2EE6E17480_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_DB4782C81E2D73D1D92BAF2EE6E17480" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, Acquisitions</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_DB4782C81E2D73D1D92BAF2EE6E17480" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_DB4782C81E2D73D1D92BAF2EE6E17480" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesAcquisitions_DB4782C81E2D73D1D92BAF2EE6E17480" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_A0EECBB77BE14004E847AF2EE6E1C11B_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_A0EECBB77BE14004E847AF2EE6E1C11B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock issued in connection with acquisitions, amount</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_A0EECBB77BE14004E847AF2EE6E1C11B_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_A0EECBB77BE14004E847AF2EE6E1C11B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Value, Acquisitions</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_A0EECBB77BE14004E847AF2EE6E1C11B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_A0EECBB77BE14004E847AF2EE6E1C11B" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueAcquisitions_A0EECBB77BE14004E847AF2EE6E1C11B" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_010A2E54ADC878263F6BAF2EE6E19901_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_010A2E54ADC878263F6BAF2EE6E19901" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock issuances under stock incentive plans, shares</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_010A2E54ADC878263F6BAF2EE6E19901_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_010A2E54ADC878263F6BAF2EE6E19901" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_010A2E54ADC878263F6BAF2EE6E19901" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_010A2E54ADC878263F6BAF2EE6E19901" xlink:to="lab_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_010A2E54ADC878263F6BAF2EE6E19901" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_1BBE1E0B9FEE10B91E6DAF2EE6E2E57D_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_1BBE1E0B9FEE10B91E6DAF2EE6E2E57D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock issuances under stock incentive plans, value</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_1BBE1E0B9FEE10B91E6DAF2EE6E2E57D_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_1BBE1E0B9FEE10B91E6DAF2EE6E2E57D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_1BBE1E0B9FEE10B91E6DAF2EE6E2E57D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_1BBE1E0B9FEE10B91E6DAF2EE6E2E57D" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_1BBE1E0B9FEE10B91E6DAF2EE6E2E57D" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_80E91F90A17884E11892AF2EE6E171B5_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_80E91F90A17884E11892AF2EE6E171B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock-based compensation and related taxes</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_80E91F90A17884E11892AF2EE6E171B5_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_80E91F90A17884E11892AF2EE6E171B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_80E91F90A17884E11892AF2EE6E171B5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_80E91F90A17884E11892AF2EE6E171B5" xlink:to="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_80E91F90A17884E11892AF2EE6E171B5" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_F601040771D321DC190BAF2EE6E136A6_periodEndLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_F601040771D321DC190BAF2EE6E136A6" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance, shares</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_F601040771D321DC190BAF2EE6E136A6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding_F601040771D321DC190BAF2EE6E136A6" xlink:to="lab_us-gaap_CommonStockSharesOutstanding_F601040771D321DC190BAF2EE6E136A6" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquity_38E8F72B44EFA7D9C6CBAF2EE6E1BEBC_periodEndLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_38E8F72B44EFA7D9C6CBAF2EE6E1BEBC" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_38E8F72B44EFA7D9C6CBAF2EE6E1BEBC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity_38E8F72B44EFA7D9C6CBAF2EE6E1BEBC" xlink:to="lab_us-gaap_StockholdersEquity_38E8F72B44EFA7D9C6CBAF2EE6E1BEBC" xlink:type="arc" />
    <link:label id="lab_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4_terseLabel_en-US" xlink:label="lab_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value measurement transfers from one level to another</link:label>
    <link:label id="lab_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4_label_en-US" xlink:label="lab_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurement Transfers From One Level To Another</link:label>
    <link:label id="lab_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4_documentation_en-US" xlink:label="lab_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair Value Measurement Transfers From One Level To Another</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FairValueMeasurementTransfersFromOneLevelToAnother" xlink:label="loc_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4" xlink:to="lab_gbci_FairValueMeasurementTransfersFromOneLevelToAnother_D313C8A52A52AAE41801A5A69BED74D4" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueOptionChangesInFairValueGainLoss1_98147CE1AD307C4F3CC1A5A69BED4DA2_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueOptionChangesInFairValueGainLoss1_98147CE1AD307C4F3CC1A5A69BED4DA2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Option, Changes in Fair Value, Gain (Loss)</link:label>
    <link:label id="lab_us-gaap_FairValueOptionChangesInFairValueGainLoss1_98147CE1AD307C4F3CC1A5A69BED4DA2_label_en-US" xlink:label="lab_us-gaap_FairValueOptionChangesInFairValueGainLoss1_98147CE1AD307C4F3CC1A5A69BED4DA2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Option, Changes in Fair Value, Gain (Loss)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOptionChangesInFairValueGainLoss1" xlink:label="loc_us-gaap_FairValueOptionChangesInFairValueGainLoss1_98147CE1AD307C4F3CC1A5A69BED4DA2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueOptionChangesInFairValueGainLoss1_98147CE1AD307C4F3CC1A5A69BED4DA2" xlink:to="lab_us-gaap_FairValueOptionChangesInFairValueGainLoss1_98147CE1AD307C4F3CC1A5A69BED4DA2" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_FBCDE6CC4EA7A479F1A4759877AF9EFD_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_6C8B8E4BDCA957E9A1DF59410D4281DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_6C8B8E4BDCA957E9A1DF59410D4281DD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_6C8B8E4BDCA957E9A1DF59410D4281DD" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_6C8B8E4BDCA957E9A1DF59410D4281DD" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_C33EB614EC89BAB55E85759877AF7C4E_verboseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_BBAAE9A77367582B9D522CD89E408A77" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Contingencies and Commitments</link:label>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_C33EB614EC89BAB55E85759877AF7C4E_label_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_BBAAE9A77367582B9D522CD89E408A77" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_BBAAE9A77367582B9D522CD89E408A77" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_BBAAE9A77367582B9D522CD89E408A77" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_BBAAE9A77367582B9D522CD89E408A77" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashCashEquivalentsAndFederalFundsSold_76C98F940CB2020AE5A49ADAA77EF962_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsAndFederalFundsSold_76C98F940CB2020AE5A49ADAA77EF962" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashCashEquivalentsAndFederalFundsSold" xlink:label="loc_us-gaap_CashCashEquivalentsAndFederalFundsSold_76C98F940CB2020AE5A49ADAA77EF962" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsAndFederalFundsSold_76C98F940CB2020AE5A49ADAA77EF962" xlink:to="lab_us-gaap_CashCashEquivalentsAndFederalFundsSold_76C98F940CB2020AE5A49ADAA77EF962" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecurities_C09225C631D79C54BFF19ADAA77E59ED_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecurities_C09225C631D79C54BFF19ADAA77E59ED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment securities, held-to-maturity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecurities" xlink:label="loc_us-gaap_HeldToMaturitySecurities_C09225C631D79C54BFF19ADAA77E59ED" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecurities_C09225C631D79C54BFF19ADAA77E59ED" xlink:to="lab_us-gaap_HeldToMaturitySecurities_C09225C631D79C54BFF19ADAA77E59ED" xlink:type="arc" />
    <link:label id="lab_us-gaap_MarketableSecurities_6EF657E09492526F0A6E9ADAA77EE84F_totalLabel_en-US" xlink:label="lab_us-gaap_MarketableSecurities_6EF657E09492526F0A6E9ADAA77EE84F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total investment securities</link:label>
    <link:label id="lab_us-gaap_MarketableSecurities_6EF657E09492526F0A6E9ADAA77EE84F_label_en-US" xlink:label="lab_us-gaap_MarketableSecurities_6EF657E09492526F0A6E9ADAA77EE84F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Marketable Securities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketableSecurities" xlink:label="loc_us-gaap_MarketableSecurities_6EF657E09492526F0A6E9ADAA77EE84F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MarketableSecurities_6EF657E09492526F0A6E9ADAA77EE84F" xlink:to="lab_us-gaap_MarketableSecurities_6EF657E09492526F0A6E9ADAA77EE84F" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_250AF5776482EE1F7CF79ADAA77E989A_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_250AF5776482EE1F7CF79ADAA77E989A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans held for sale</link:label>
    <link:label id="lab_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_250AF5776482EE1F7CF79ADAA77E989A_label_en-US" xlink:label="lab_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_250AF5776482EE1F7CF79ADAA77E989A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans Receivable Held-for-sale, Net, Not Part of Disposal Group</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup" xlink:label="loc_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_250AF5776482EE1F7CF79ADAA77E989A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_250AF5776482EE1F7CF79ADAA77E989A" xlink:to="lab_us-gaap_LoansReceivableHeldForSaleNetNotPartOfDisposalGroup_250AF5776482EE1F7CF79ADAA77E989A" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_F51B59B994387B490B5E9ADAA77E1FB3_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_F51B59B994387B490B5E9ADAA77E1FB3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans receivable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:label="loc_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_F51B59B994387B490B5E9ADAA77E1FB3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_F51B59B994387B490B5E9ADAA77E1FB3" xlink:to="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_F51B59B994387B490B5E9ADAA77E1FB3" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableAllowance_DFF0C23807E55337C7AA9ADAA77E3DDB_negatedLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableAllowance_DFF0C23807E55337C7AA9ADAA77E3DDB" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Allowance for loan and lease losses</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableAllowance_DFF0C23807E55337C7AA9ADAA77E3DDB_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableAllowance_DFF0C23807E55337C7AA9ADAA77E3DDB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable, Allowance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableAllowance" xlink:label="loc_us-gaap_LoansAndLeasesReceivableAllowance_DFF0C23807E55337C7AA9ADAA77E3DDB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableAllowance_DFF0C23807E55337C7AA9ADAA77E3DDB" xlink:to="lab_us-gaap_LoansAndLeasesReceivableAllowance_DFF0C23807E55337C7AA9ADAA77E3DDB" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableNetReportedAmount_0CDBE71CE7E42E78C5B89ADAA77E8700_totalLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableNetReportedAmount_0CDBE71CE7E42E78C5B89ADAA77E8700" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Loans receivable, net</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableNetReportedAmount_0CDBE71CE7E42E78C5B89ADAA77E8700_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableNetReportedAmount_0CDBE71CE7E42E78C5B89ADAA77E8700" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable, Net Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:label="loc_us-gaap_LoansAndLeasesReceivableNetReportedAmount_0CDBE71CE7E42E78C5B89ADAA77E8700" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableNetReportedAmount_0CDBE71CE7E42E78C5B89ADAA77E8700" xlink:to="lab_us-gaap_LoansAndLeasesReceivableNetReportedAmount_0CDBE71CE7E42E78C5B89ADAA77E8700" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_73B6C4FD591D96C5539C9ADAA783903A_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_73B6C4FD591D96C5539C9ADAA783903A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Premises and equipment, net</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_73B6C4FD591D96C5539C9ADAA783903A_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_73B6C4FD591D96C5539C9ADAA783903A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_73B6C4FD591D96C5539C9ADAA783903A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_73B6C4FD591D96C5539C9ADAA783903A" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_73B6C4FD591D96C5539C9ADAA783903A" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherRealEstateAndForeclosedAssets_D2CFEDC4C8350CBE8B7D9ADAA783C447_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherRealEstateAndForeclosedAssets_D2CFEDC4C8350CBE8B7D9ADAA783C447" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other real estate owned</link:label>
    <link:label id="lab_us-gaap_OtherRealEstateAndForeclosedAssets_D2CFEDC4C8350CBE8B7D9ADAA783C447_label_en-US" xlink:label="lab_us-gaap_OtherRealEstateAndForeclosedAssets_D2CFEDC4C8350CBE8B7D9ADAA783C447" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Real Estate, Foreclosed Assets, and Repossessed Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherRealEstateAndForeclosedAssets" xlink:label="loc_us-gaap_OtherRealEstateAndForeclosedAssets_D2CFEDC4C8350CBE8B7D9ADAA783C447" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherRealEstateAndForeclosedAssets_D2CFEDC4C8350CBE8B7D9ADAA783C447" xlink:to="lab_us-gaap_OtherRealEstateAndForeclosedAssets_D2CFEDC4C8350CBE8B7D9ADAA783C447" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestReceivable_1FEF26D1EA52259F90879ADAA7836EE3_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestReceivable_1FEF26D1EA52259F90879ADAA7836EE3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accrued interest receivable</link:label>
    <link:label id="lab_us-gaap_InterestReceivable_1FEF26D1EA52259F90879ADAA7836EE3_label_en-US" xlink:label="lab_us-gaap_InterestReceivable_1FEF26D1EA52259F90879ADAA7836EE3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Receivable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestReceivable" xlink:label="loc_us-gaap_InterestReceivable_1FEF26D1EA52259F90879ADAA7836EE3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestReceivable_1FEF26D1EA52259F90879ADAA7836EE3" xlink:to="lab_us-gaap_InterestReceivable_1FEF26D1EA52259F90879ADAA7836EE3" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredIncomeTaxAssetsNet_ECE4B6B571BF65C0732F9ADAA78477E4_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxAssetsNet_ECE4B6B571BF65C0732F9ADAA78477E4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax asset</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxAssetsNet_ECE4B6B571BF65C0732F9ADAA78477E4_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxAssetsNet_ECE4B6B571BF65C0732F9ADAA78477E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Income Tax Assets, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_ECE4B6B571BF65C0732F9ADAA78477E4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxAssetsNet_ECE4B6B571BF65C0732F9ADAA78477E4" xlink:to="lab_us-gaap_DeferredIncomeTaxAssetsNet_ECE4B6B571BF65C0732F9ADAA78477E4" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNet_61946F8D4007C077DCB09ADAA7844202_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNet_61946F8D4007C077DCB09ADAA7844202" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Core deposit intangible, net</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNet_61946F8D4007C077DCB09ADAA7844202_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNet_61946F8D4007C077DCB09ADAA7844202" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_61946F8D4007C077DCB09ADAA7844202" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_61946F8D4007C077DCB09ADAA7844202" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsNet_61946F8D4007C077DCB09ADAA7844202" xlink:type="arc" />
    <link:label id="lab_us-gaap_Goodwill_492ED53E90A0BDA128D89ADAA78454C4_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill_492ED53E90A0BDA128D89ADAA78454C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_us-gaap_Goodwill_492ED53E90A0BDA128D89ADAA78454C4_label_en-US" xlink:label="lab_us-gaap_Goodwill_492ED53E90A0BDA128D89ADAA78454C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_492ED53E90A0BDA128D89ADAA78454C4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_492ED53E90A0BDA128D89ADAA78454C4" xlink:to="lab_us-gaap_Goodwill_492ED53E90A0BDA128D89ADAA78454C4" xlink:type="arc" />
    <link:label id="lab_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5_verboseLabel_en-US" xlink:label="lab_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-marketable equity securities</link:label>
    <link:label id="lab_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5_label_en-US" xlink:label="lab_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nonmarketable Securities Equity Securities</link:label>
    <link:label id="lab_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5_documentation_en-US" xlink:label="lab_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non marketable securities, equity securities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_NonmarketableSecuritiesEquitySecurities" xlink:label="loc_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5" xlink:to="lab_gbci_NonmarketableSecuritiesEquitySecurities_9C9C1330AF24DCF1D6D19ADAA784F0A5" xlink:type="arc" />
    <link:label id="lab_us-gaap_Assets_01D879096A80D0019DB89ADAA78453F1_totalLabel_en-US" xlink:label="lab_us-gaap_Assets_01D879096A80D0019DB89ADAA78453F1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_01D879096A80D0019DB89ADAA78453F1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Assets_01D879096A80D0019DB89ADAA78453F1" xlink:to="lab_us-gaap_Assets_01D879096A80D0019DB89ADAA78453F1" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesAbstract_0083A0391C16311A19099ADAA784069E_verboseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAbstract_0083A0391C16311A19099ADAA784069E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAbstract_0083A0391C16311A19099ADAA784069E_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAbstract_0083A0391C16311A19099ADAA784069E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="loc_us-gaap_LiabilitiesAbstract_0083A0391C16311A19099ADAA784069E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAbstract_0083A0391C16311A19099ADAA784069E" xlink:to="lab_us-gaap_LiabilitiesAbstract_0083A0391C16311A19099ADAA784069E" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestBearingDepositLiabilities_ADF6841BE6265DFEA9109ADAA7842FD3_verboseLabel_en-US" xlink:label="lab_us-gaap_NoninterestBearingDepositLiabilities_ADF6841BE6265DFEA9109ADAA7842FD3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-interest bearing deposits</link:label>
    <link:label id="lab_us-gaap_NoninterestBearingDepositLiabilities_ADF6841BE6265DFEA9109ADAA7842FD3_label_en-US" xlink:label="lab_us-gaap_NoninterestBearingDepositLiabilities_ADF6841BE6265DFEA9109ADAA7842FD3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noninterest-bearing Deposit Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestBearingDepositLiabilities" xlink:label="loc_us-gaap_NoninterestBearingDepositLiabilities_ADF6841BE6265DFEA9109ADAA7842FD3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestBearingDepositLiabilities_ADF6841BE6265DFEA9109ADAA7842FD3" xlink:to="lab_us-gaap_NoninterestBearingDepositLiabilities_ADF6841BE6265DFEA9109ADAA7842FD3" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestBearingDepositLiabilities_FA803D8C55CED7312FDD9ADAA784641B_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestBearingDepositLiabilities_FA803D8C55CED7312FDD9ADAA784641B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest bearing deposits</link:label>
    <link:label id="lab_us-gaap_InterestBearingDepositLiabilities_FA803D8C55CED7312FDD9ADAA784641B_label_en-US" xlink:label="lab_us-gaap_InterestBearingDepositLiabilities_FA803D8C55CED7312FDD9ADAA784641B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest-bearing Deposit Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestBearingDepositLiabilities" xlink:label="loc_us-gaap_InterestBearingDepositLiabilities_FA803D8C55CED7312FDD9ADAA784641B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestBearingDepositLiabilities_FA803D8C55CED7312FDD9ADAA784641B" xlink:to="lab_us-gaap_InterestBearingDepositLiabilities_FA803D8C55CED7312FDD9ADAA784641B" xlink:type="arc" />
    <link:label id="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_BF657E594290298FB2A29ADAA784B24C_verboseLabel_en-US" xlink:label="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_BF657E594290298FB2A29ADAA784B24C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Securities sold under agreements to repurchase</link:label>
    <link:label id="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_BF657E594290298FB2A29ADAA784B24C_label_en-US" xlink:label="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_BF657E594290298FB2A29ADAA784B24C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securities Sold under Agreements to Repurchase</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_BF657E594290298FB2A29ADAA784B24C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_BF657E594290298FB2A29ADAA784B24C" xlink:to="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchase_BF657E594290298FB2A29ADAA784B24C" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdvancesFromFederalHomeLoanBanks_B77885955762ACAE578C9ADAA784B568_verboseLabel_en-US" xlink:label="lab_us-gaap_AdvancesFromFederalHomeLoanBanks_B77885955762ACAE578C9ADAA784B568" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank advances</link:label>
    <link:label id="lab_us-gaap_AdvancesFromFederalHomeLoanBanks_B77885955762ACAE578C9ADAA784B568_label_en-US" xlink:label="lab_us-gaap_AdvancesFromFederalHomeLoanBanks_B77885955762ACAE578C9ADAA784B568" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Advances from Federal Home Loan Banks</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvancesFromFederalHomeLoanBanks" xlink:label="loc_us-gaap_AdvancesFromFederalHomeLoanBanks_B77885955762ACAE578C9ADAA784B568" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdvancesFromFederalHomeLoanBanks_B77885955762ACAE578C9ADAA784B568" xlink:to="lab_us-gaap_AdvancesFromFederalHomeLoanBanks_B77885955762ACAE578C9ADAA784B568" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherBorrowings_F3675ED4596014371B469ADAA784FED8_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherBorrowings_F3675ED4596014371B469ADAA784FED8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other borrowed funds</link:label>
    <link:label id="lab_us-gaap_OtherBorrowings_F3675ED4596014371B469ADAA784FED8_label_en-US" xlink:label="lab_us-gaap_OtherBorrowings_F3675ED4596014371B469ADAA784FED8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Borrowings</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherBorrowings" xlink:label="loc_us-gaap_OtherBorrowings_F3675ED4596014371B469ADAA784FED8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherBorrowings_F3675ED4596014371B469ADAA784FED8" xlink:to="lab_us-gaap_OtherBorrowings_F3675ED4596014371B469ADAA784FED8" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestPayableCurrentAndNoncurrent_30102C5A2C1685E983A79ADAA7855F03_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestPayableCurrentAndNoncurrent_30102C5A2C1685E983A79ADAA7855F03" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accrued interest payable</link:label>
    <link:label id="lab_us-gaap_InterestPayableCurrentAndNoncurrent_30102C5A2C1685E983A79ADAA7855F03_label_en-US" xlink:label="lab_us-gaap_InterestPayableCurrentAndNoncurrent_30102C5A2C1685E983A79ADAA7855F03" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Payable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestPayableCurrentAndNoncurrent" xlink:label="loc_us-gaap_InterestPayableCurrentAndNoncurrent_30102C5A2C1685E983A79ADAA7855F03" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPayableCurrentAndNoncurrent_30102C5A2C1685E983A79ADAA7855F03" xlink:to="lab_us-gaap_InterestPayableCurrentAndNoncurrent_30102C5A2C1685E983A79ADAA7855F03" xlink:type="arc" />
    <link:label id="lab_us-gaap_Liabilities_0782B49541F155A69EA79ADAA7857746_totalLabel_en-US" xlink:label="lab_us-gaap_Liabilities_0782B49541F155A69EA79ADAA7857746" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_0782B49541F155A69EA79ADAA7857746" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities_0782B49541F155A69EA79ADAA7857746" xlink:to="lab_us-gaap_Liabilities_0782B49541F155A69EA79ADAA7857746" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquityAbstract_46DC927245C63E5301859ADAA785BC8F_verboseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_46DC927245C63E5301859ADAA785BC8F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Stockholders' Equity</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityAbstract_46DC927245C63E5301859ADAA785BC8F_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityAbstract_46DC927245C63E5301859ADAA785BC8F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Attributable to Parent [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="loc_us-gaap_StockholdersEquityAbstract_46DC927245C63E5301859ADAA785BC8F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityAbstract_46DC927245C63E5301859ADAA785BC8F" xlink:to="lab_us-gaap_StockholdersEquityAbstract_46DC927245C63E5301859ADAA785BC8F" xlink:type="arc" />
    <link:label id="lab_us-gaap_PreferredStockValue_B6DBBB63593C45E06A4E9ADAA7857606_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockValue_B6DBBB63593C45E06A4E9ADAA7857606" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Preferred shares, $0.01 par value per share, 1,000,000 shares authorized, none issued or outstanding</link:label>
    <link:label id="lab_us-gaap_PreferredStockValue_B6DBBB63593C45E06A4E9ADAA7857606_label_en-US" xlink:label="lab_us-gaap_PreferredStockValue_B6DBBB63593C45E06A4E9ADAA7857606" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred Stock, Value, Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaap_PreferredStockValue_B6DBBB63593C45E06A4E9ADAA7857606" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockValue_B6DBBB63593C45E06A4E9ADAA7857606" xlink:to="lab_us-gaap_PreferredStockValue_B6DBBB63593C45E06A4E9ADAA7857606" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockValueOutstanding_7D8704B59EC512C3B2469ADAA7856C14_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockValueOutstanding_7D8704B59EC512C3B2469ADAA7856C14" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Common stock, $0.01 par value per share, 117,187,500 shares authorized</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="loc_us-gaap_CommonStockValueOutstanding_7D8704B59EC512C3B2469ADAA7856C14" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockValueOutstanding_7D8704B59EC512C3B2469ADAA7856C14" xlink:to="lab_us-gaap_CommonStockValueOutstanding_7D8704B59EC512C3B2469ADAA7856C14" xlink:type="arc" />
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_AAB4A985F2896A8621EF9ADAA785597A_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit_AAB4A985F2896A8621EF9ADAA785597A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retained earnings - substantially restricted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_AAB4A985F2896A8621EF9ADAA785597A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsAccumulatedDeficit_AAB4A985F2896A8621EF9ADAA785597A" xlink:to="lab_us-gaap_RetainedEarningsAccumulatedDeficit_AAB4A985F2896A8621EF9ADAA785597A" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_3DCBA992E57E3FD8024C9ADAA7854C1B_verboseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_3DCBA992E57E3FD8024C9ADAA7854C1B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accumulated other comprehensive loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_3DCBA992E57E3FD8024C9ADAA7854C1B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_3DCBA992E57E3FD8024C9ADAA7854C1B" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_3DCBA992E57E3FD8024C9ADAA7854C1B" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquity_49F8B7CCA48938FE41F69ADAA7854056_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity_49F8B7CCA48938FE41F69ADAA7854056" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total stockholders&#8217; equity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_49F8B7CCA48938FE41F69ADAA7854056" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquity_49F8B7CCA48938FE41F69ADAA7854056" xlink:to="lab_us-gaap_StockholdersEquity_49F8B7CCA48938FE41F69ADAA7854056" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_79CBCF2919ADED02E8249ADAA78514AA_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity_79CBCF2919ADED02E8249ADAA78514AA" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities and stockholders&#8217; equity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_79CBCF2919ADED02E8249ADAA78514AA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_79CBCF2919ADED02E8249ADAA78514AA" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity_79CBCF2919ADED02E8249ADAA78514AA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_5053804CBB224992CE129ADAA7853F32_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding_5053804CBB224992CE129ADAA7853F32" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Number of common stock shares issued and outstanding</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_5053804CBB224992CE129ADAA7853F32" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding_5053804CBB224992CE129ADAA7853F32" xlink:to="lab_us-gaap_CommonStockSharesOutstanding_5053804CBB224992CE129ADAA7853F32" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestRateSwapMember_7DF9D1714A235399A37D75987936F2C9_terseLabel_en-US" xlink:label="lab_us-gaap_InterestRateSwapMember_706B07654E3E570D8E4D475E355C4505" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Rate Swap</link:label>
    <link:label id="lab_us-gaap_InterestRateSwapMember_7DF9D1714A235399A37D75987936F2C9_label_en-US" xlink:label="lab_us-gaap_InterestRateSwapMember_706B07654E3E570D8E4D475E355C4505" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Rate Swap [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_706B07654E3E570D8E4D475E355C4505" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestRateSwapMember_706B07654E3E570D8E4D475E355C4505" xlink:to="lab_us-gaap_InterestRateSwapMember_706B07654E3E570D8E4D475E355C4505" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeCostOfHedge_A5408F05DFAB0B5824AB759879366C3B_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeCostOfHedge_CD43E1EEAFB954F0AC822E41AA460B18" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest rate expense recorded on interest rate swap</link:label>
    <link:label id="lab_us-gaap_DerivativeCostOfHedge_A5408F05DFAB0B5824AB759879366C3B_label_en-US" xlink:label="lab_us-gaap_DerivativeCostOfHedge_CD43E1EEAFB954F0AC822E41AA460B18" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative, Cost of Hedge</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeCostOfHedge" xlink:label="loc_us-gaap_DerivativeCostOfHedge_CD43E1EEAFB954F0AC822E41AA460B18" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeCostOfHedge_CD43E1EEAFB954F0AC822E41AA460B18" xlink:to="lab_us-gaap_DerivativeCostOfHedge_CD43E1EEAFB954F0AC822E41AA460B18" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_091B500A0A828CD12D8775987936D00D_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_A1113F751C2252BF91F3EAABBDC52CE5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrealized loss to be reclassified within twelve months</link:label>
    <link:label id="lab_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_091B500A0A828CD12D8775987936D00D_label_en-US" xlink:label="lab_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_A1113F751C2252BF91F3EAABBDC52CE5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths" xlink:label="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_A1113F751C2252BF91F3EAABBDC52CE5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_A1113F751C2252BF91F3EAABBDC52CE5" xlink:to="lab_us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths_A1113F751C2252BF91F3EAABBDC52CE5" xlink:type="arc" />
    <link:label id="lab_us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue_6EE84FF3E7FA3EA3BC29759879367BCE_terseLabel_en-US" xlink:label="lab_us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue_F02CC0E6B84E5C6FA4869260CF16F87A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment securities pledged as collateral</link:label>
    <link:label id="lab_us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue_6EE84FF3E7FA3EA3BC29759879367BCE_label_en-US" xlink:label="lab_us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue_F02CC0E6B84E5C6FA4869260CF16F87A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Security Owned and Pledged as Collateral, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue" xlink:label="loc_us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue_F02CC0E6B84E5C6FA4869260CF16F87A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue_F02CC0E6B84E5C6FA4869260CF16F87A" xlink:to="lab_us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue_F02CC0E6B84E5C6FA4869260CF16F87A" xlink:type="arc" />
    <link:label id="lab_us-gaap_SecuritiesReceivedAsCollateral_2CCF481AF727FCE4FA4B75987936A788_verboseLabel_en-US" xlink:label="lab_us-gaap_SecuritiesReceivedAsCollateral_1BD61BD335B75549ABB105F6D9EF7645" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Collateral pledged from counterparties to the Company</link:label>
    <link:label id="lab_us-gaap_SecuritiesReceivedAsCollateral_2CCF481AF727FCE4FA4B75987936A788_label_en-US" xlink:label="lab_us-gaap_SecuritiesReceivedAsCollateral_1BD61BD335B75549ABB105F6D9EF7645" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securities Received as Collateral</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesReceivedAsCollateral" xlink:label="loc_us-gaap_SecuritiesReceivedAsCollateral_1BD61BD335B75549ABB105F6D9EF7645" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuritiesReceivedAsCollateral_1BD61BD335B75549ABB105F6D9EF7645" xlink:to="lab_us-gaap_SecuritiesReceivedAsCollateral_1BD61BD335B75549ABB105F6D9EF7645" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareReconciliationAbstract_97F74994E0C8144C0A86A4BB43940E52_verboseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareReconciliationAbstract_97F74994E0C8144C0A86A4BB43940E52" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Basic and Diluted Earnings Per Share</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareReconciliationAbstract_97F74994E0C8144C0A86A4BB43940E52_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareReconciliationAbstract_97F74994E0C8144C0A86A4BB43940E52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share Reconciliation [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareReconciliationAbstract" xlink:label="loc_us-gaap_EarningsPerShareReconciliationAbstract_97F74994E0C8144C0A86A4BB43940E52" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareReconciliationAbstract_97F74994E0C8144C0A86A4BB43940E52" xlink:to="lab_us-gaap_EarningsPerShareReconciliationAbstract_97F74994E0C8144C0A86A4BB43940E52" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLoss_F102C83D960C45B7F2FDA4BB43945230_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss_F102C83D960C45B7F2FDA4BB43945230" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_F102C83D960C45B7F2FDA4BB43945230" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss_F102C83D960C45B7F2FDA4BB43945230" xlink:to="lab_us-gaap_NetIncomeLoss_F102C83D960C45B7F2FDA4BB43945230" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_74DD28338644CD0B0359A4BB4394DAD3_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_74DD28338644CD0B0359A4BB4394DAD3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Average outstanding shares - basic</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_74DD28338644CD0B0359A4BB4394DAD3_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_74DD28338644CD0B0359A4BB4394DAD3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_74DD28338644CD0B0359A4BB4394DAD3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_74DD28338644CD0B0359A4BB4394DAD3" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_74DD28338644CD0B0359A4BB4394DAD3" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A849CC116EABEB8C76EEA4BB4394B953_verboseLabel_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A849CC116EABEB8C76EEA4BB4394B953" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Add: dilutive restricted stock awards</link:label>
    <link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A849CC116EABEB8C76EEA4BB4394B953_label_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A849CC116EABEB8C76EEA4BB4394B953" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A849CC116EABEB8C76EEA4BB4394B953" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A849CC116EABEB8C76EEA4BB4394B953" xlink:to="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_A849CC116EABEB8C76EEA4BB4394B953" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_65AB753F7A70A34EDB72A4BB43941816_totalLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_65AB753F7A70A34EDB72A4BB43941816" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Average outstanding shares - diluted</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_65AB753F7A70A34EDB72A4BB43941816_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_65AB753F7A70A34EDB72A4BB43941816" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_65AB753F7A70A34EDB72A4BB43941816" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_65AB753F7A70A34EDB72A4BB43941816" xlink:to="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_65AB753F7A70A34EDB72A4BB43941816" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareBasic_B5CF3B3451A28B478F26A4BB4394750C_verboseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasic_B5CF3B3451A28B478F26A4BB4394750C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Basic earnings per share</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareBasic_B5CF3B3451A28B478F26A4BB4394750C_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasic_B5CF3B3451A28B478F26A4BB4394750C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Basic</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_B5CF3B3451A28B478F26A4BB4394750C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasic_B5CF3B3451A28B478F26A4BB4394750C" xlink:to="lab_us-gaap_EarningsPerShareBasic_B5CF3B3451A28B478F26A4BB4394750C" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_7D81D422430BB4884440A4BB43946EE7_verboseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted_7D81D422430BB4884440A4BB43946EE7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Diluted earnings per share</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_7D81D422430BB4884440A4BB43946EE7_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted_7D81D422430BB4884440A4BB43946EE7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Diluted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_7D81D422430BB4884440A4BB43946EE7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareDiluted_7D81D422430BB4884440A4BB43946EE7" xlink:to="lab_us-gaap_EarningsPerShareDiluted_7D81D422430BB4884440A4BB43946EE7" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract_42BDAC0EC7633C3D1F4BA4BB4394FE31_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract_42BDAC0EC7633C3D1F4BA4BB4394FE31" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Earnings Per Share</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract_42BDAC0EC7633C3D1F4BA4BB4394FE31_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract_42BDAC0EC7633C3D1F4BA4BB4394FE31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Diluted, Other Disclosures [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract" xlink:label="loc_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract_42BDAC0EC7633C3D1F4BA4BB4394FE31" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract_42BDAC0EC7633C3D1F4BA4BB4394FE31" xlink:to="lab_us-gaap_EarningsPerShareDilutedOtherDisclosuresAbstract_42BDAC0EC7633C3D1F4BA4BB4394FE31" xlink:type="arc" />
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_9EF352CE4F8971410436A4BB43940848_verboseLabel_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_9EF352CE4F8971410436A4BB43940848" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Restricted stock awards excluded from the diluted average outstanding share calculation</link:label>
    <link:label id="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_9EF352CE4F8971410436A4BB43940848_label_en-US" xlink:label="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_9EF352CE4F8971410436A4BB43940848" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_9EF352CE4F8971410436A4BB43940848" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_9EF352CE4F8971410436A4BB43940848" xlink:to="lab_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_9EF352CE4F8971410436A4BB43940848" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCommitmentsTableTextBlock_0ACC56CF876725657C40759877792CF7_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitmentsTableTextBlock_7FB490800DFD513C9C87FD27BE5FD5EA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Outstanding commitments</link:label>
    <link:label id="lab_us-gaap_OtherCommitmentsTableTextBlock_0ACC56CF876725657C40759877792CF7_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsTableTextBlock_7FB490800DFD513C9C87FD27BE5FD5EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitments [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitmentsTableTextBlock" xlink:label="loc_us-gaap_OtherCommitmentsTableTextBlock_7FB490800DFD513C9C87FD27BE5FD5EA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsTableTextBlock_7FB490800DFD513C9C87FD27BE5FD5EA" xlink:to="lab_us-gaap_OtherCommitmentsTableTextBlock_7FB490800DFD513C9C87FD27BE5FD5EA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_ECEDF3D993C7797D3BA5759878AD9A0A_label_en-US" xlink:label="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_FC2AFD49896D50CEA92DC28978A2433A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retirement Benefits [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:label="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_FC2AFD49896D50CEA92DC28978A2433A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract_FC2AFD49896D50CEA92DC28978A2433A" xlink:to="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_FC2AFD49896D50CEA92DC28978A2433A" xlink:type="arc" />
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_D5F58E59C845B874F85B759878AD9942_verboseLabel_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_595D7871D4845E97A6A70EAC4D32E432" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Employee Benefit Plans</link:label>
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_D5F58E59C845B874F85B759878AD9942_label_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_595D7871D4845E97A6A70EAC4D32E432" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pension and Other Postretirement Benefits Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_595D7871D4845E97A6A70EAC4D32E432" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_595D7871D4845E97A6A70EAC4D32E432" xlink:to="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_595D7871D4845E97A6A70EAC4D32E432" xlink:type="arc" />
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_C7FB91CC42511A8F5105A65DC778CA0D_verboseLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_C7FB91CC42511A8F5105A65DC778CA0D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Effective income tax rate reconciliation</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_C7FB91CC42511A8F5105A65DC778CA0D_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_C7FB91CC42511A8F5105A65DC778CA0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Percent [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_C7FB91CC42511A8F5105A65DC778CA0D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_C7FB91CC42511A8F5105A65DC778CA0D" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_C7FB91CC42511A8F5105A65DC778CA0D" xlink:type="arc" />
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_C7F499F49A595E67BF1CA65DC778F63B_verboseLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_C7F499F49A595E67BF1CA65DC778F63B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Federal statutory rate</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_C7F499F49A595E67BF1CA65DC778F63B_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_C7F499F49A595E67BF1CA65DC778F63B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_C7F499F49A595E67BF1CA65DC778F63B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_C7F499F49A595E67BF1CA65DC778F63B" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_C7F499F49A595E67BF1CA65DC778F63B" xlink:type="arc" />
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E3984D1CC0ECB1B09534A65DC7786EB0_verboseLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E3984D1CC0ECB1B09534A65DC7786EB0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">State taxes, net of federal income tax benefit</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E3984D1CC0ECB1B09534A65DC7786EB0_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E3984D1CC0ECB1B09534A65DC7786EB0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E3984D1CC0ECB1B09534A65DC7786EB0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E3984D1CC0ECB1B09534A65DC7786EB0" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_E3984D1CC0ECB1B09534A65DC7786EB0" xlink:type="arc" />
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_5B8FC77833424B21A4E1A6609A9A2F4C_terseLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_5B8FC77833424B21A4E1A6609A9A2F4C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax rate change</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_5B8FC77833424B21A4E1A6609A9A2F4C_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_5B8FC77833424B21A4E1A6609A9A2F4C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_5B8FC77833424B21A4E1A6609A9A2F4C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_5B8FC77833424B21A4E1A6609A9A2F4C" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_5B8FC77833424B21A4E1A6609A9A2F4C" xlink:type="arc" />
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_75F9C6498F61CDAB6CE0A65DC7784626_negatedLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_75F9C6498F61CDAB6CE0A65DC7784626" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax-exempt interest income</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_75F9C6498F61CDAB6CE0A65DC7784626_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_75F9C6498F61CDAB6CE0A65DC7784626" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_75F9C6498F61CDAB6CE0A65DC7784626" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_75F9C6498F61CDAB6CE0A65DC7784626" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxExemptIncome_75F9C6498F61CDAB6CE0A65DC7784626" xlink:type="arc" />
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_A9D47E547DD193425B7FA65DC778AEF9_negatedLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_A9D47E547DD193425B7FA65DC778AEF9" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax credits</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_A9D47E547DD193425B7FA65DC778AEF9_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_A9D47E547DD193425B7FA65DC778AEF9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Tax Credit, Percent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_A9D47E547DD193425B7FA65DC778AEF9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_A9D47E547DD193425B7FA65DC778AEF9" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_A9D47E547DD193425B7FA65DC778AEF9" xlink:type="arc" />
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_B1AADF4CF854E3B95C9DA65DC7784A48_verboseLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_B1AADF4CF854E3B95C9DA65DC7784A48" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other, net</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_B1AADF4CF854E3B95C9DA65DC7784A48_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_B1AADF4CF854E3B95C9DA65DC7784A48" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Other Adjustments, Percent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_B1AADF4CF854E3B95C9DA65DC7784A48" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_B1AADF4CF854E3B95C9DA65DC7784A48" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_B1AADF4CF854E3B95C9DA65DC7784A48" xlink:type="arc" />
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations_F6C7FF7802AC43293BA0A65DC7781EE4_totalLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations_F6C7FF7802AC43293BA0A65DC7781EE4" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Effective tax rate</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations_F6C7FF7802AC43293BA0A65DC7781EE4_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations_F6C7FF7802AC43293BA0A65DC7781EE4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Percent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_F6C7FF7802AC43293BA0A65DC7781EE4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_F6C7FF7802AC43293BA0A65DC7781EE4" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations_F6C7FF7802AC43293BA0A65DC7781EE4" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfEquityMethodInvestmentsTable_51F02061AA4BF8D64413A4679C25D9DC_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEquityMethodInvestmentsTable_51F02061AA4BF8D64413A4679C25D9DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Equity Method Investments [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEquityMethodInvestmentsTable_51F02061AA4BF8D64413A4679C25D9DC_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEquityMethodInvestmentsTable_51F02061AA4BF8D64413A4679C25D9DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Equity Method Investments [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_51F02061AA4BF8D64413A4679C25D9DC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_51F02061AA4BF8D64413A4679C25D9DC" xlink:to="lab_us-gaap_ScheduleOfEquityMethodInvestmentsTable_51F02061AA4BF8D64413A4679C25D9DC" xlink:type="arc" />
    <link:label id="lab_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F_terseLabel_en-US" xlink:label="lab_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CDE</link:label>
    <link:label id="lab_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F_label_en-US" xlink:label="lab_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Certified Development Entities [Member]</link:label>
    <link:label id="lab_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F_documentation_en-US" xlink:label="lab_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Certified development entities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CertifiedDevelopmentEntitiesMember" xlink:label="loc_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F" xlink:to="lab_gbci_CertifiedDevelopmentEntitiesMember_A323F5522B9C6D91CA44A4679CC14F4F" xlink:type="arc" />
    <link:label id="lab_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8_terseLabel_en-US" xlink:label="lab_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">LIHTC</link:label>
    <link:label id="lab_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8_label_en-US" xlink:label="lab_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">low Income Housing Tax Credit [Member]</link:label>
    <link:label id="lab_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8_documentation_en-US" xlink:label="lab_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Low-income housing tax credit.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_LowIncomeHousingTaxCreditMember" xlink:label="loc_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8" xlink:to="lab_gbci_LowIncomeHousingTaxCreditMember_51B7EFDC9CAB14148F29A4679CC1C9F8" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherNoncurrentAssetsMember_84105C8CA64809D1C231A4679CC1AEE3_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNoncurrentAssetsMember_84105C8CA64809D1C231A4679CC1AEE3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_us-gaap_OtherNoncurrentAssetsMember_84105C8CA64809D1C231A4679CC1AEE3_label_en-US" xlink:label="lab_us-gaap_OtherNoncurrentAssetsMember_84105C8CA64809D1C231A4679CC1AEE3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Noncurrent Assets [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNoncurrentAssetsMember" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_84105C8CA64809D1C231A4679CC1AEE3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNoncurrentAssetsMember_84105C8CA64809D1C231A4679CC1AEE3" xlink:to="lab_us-gaap_OtherNoncurrentAssetsMember_84105C8CA64809D1C231A4679CC1AEE3" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_E7DB7C39885F3477E316A4679CC14293_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_E7DB7C39885F3477E316A4679CC14293" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Entities</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_E7DB7C39885F3477E316A4679CC14293_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_E7DB7C39885F3477E316A4679CC14293" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Equity Method Investments [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_E7DB7C39885F3477E316A4679CC14293" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_E7DB7C39885F3477E316A4679CC14293" xlink:to="lab_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_E7DB7C39885F3477E316A4679CC14293" xlink:type="arc" />
    <link:label id="lab_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0_terseLabel_en-US" xlink:label="lab_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax credit period</link:label>
    <link:label id="lab_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0_label_en-US" xlink:label="lab_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Credit Period</link:label>
    <link:label id="lab_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0_documentation_en-US" xlink:label="lab_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The period in which an investor receives tax credits from a tax credit project.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TaxCreditPeriod" xlink:label="loc_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0" xlink:to="lab_gbci_TaxCreditPeriod_82C3ADBCC492636AAC44A4679CC1FFF0" xlink:type="arc" />
    <link:label id="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments_4772ABF69F650776584BA4679CC1823C_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments_4772ABF69F650776584BA4679CC1823C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying value of equity investments in LIHTCs</link:label>
    <link:label id="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments_4772ABF69F650776584BA4679CC1823C_label_en-US" xlink:label="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments_4772ABF69F650776584BA4679CC1823C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortization Method Qualified Affordable Housing Project Investments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments" xlink:label="loc_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments_4772ABF69F650776584BA4679CC1823C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments_4772ABF69F650776584BA4679CC1823C" xlink:to="lab_us-gaap_AmortizationMethodQualifiedAffordableHousingProjectInvestments_4772ABF69F650776584BA4679CC1823C" xlink:type="arc" />
    <link:label id="lab_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0_terseLabel_en-US" xlink:label="lab_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax credit compliance period</link:label>
    <link:label id="lab_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0_label_en-US" xlink:label="lab_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Credit Compliance Period</link:label>
    <link:label id="lab_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0_documentation_en-US" xlink:label="lab_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The period in which a tax credit project must stay in compliance for the investor to keep the tax credits.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TaxCreditCompliancePeriod" xlink:label="loc_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0" xlink:to="lab_gbci_TaxCreditCompliancePeriod_0B2CE426B98D485DA477A4679CC19DB0" xlink:type="arc" />
    <link:label id="lab_us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment_CA4BC2910B557D22D0A0A4679CC103A6_terseLabel_en-US" xlink:label="lab_us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment_CA4BC2910B557D22D0A0A4679CC103A6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unfunded contingent commitments</link:label>
    <link:label id="lab_us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment_CA4BC2910B557D22D0A0A4679CC103A6_label_en-US" xlink:label="lab_us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment_CA4BC2910B557D22D0A0A4679CC103A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Qualified Affordable Housing Project Investments, Commitment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment" xlink:label="loc_us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment_CA4BC2910B557D22D0A0A4679CC103A6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment_CA4BC2910B557D22D0A0A4679CC103A6" xlink:to="lab_us-gaap_QualifiedAffordableHousingProjectInvestmentsCommitment_CA4BC2910B557D22D0A0A4679CC103A6" xlink:type="arc" />
    <link:label id="lab_us-gaap_AffordableHousingTaxCreditsCommitmentYearToBePaid_6F977F15C2C036D36D1CA4679CC1F425_terseLabel_en-US" xlink:label="lab_us-gaap_AffordableHousingTaxCreditsCommitmentYearToBePaid_6F977F15C2C036D36D1CA4679CC1F425" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Year in which commitments will be fulfilled</link:label>
    <link:label id="lab_us-gaap_AffordableHousingTaxCreditsCommitmentYearToBePaid_6F977F15C2C036D36D1CA4679CC1F425_label_en-US" xlink:label="lab_us-gaap_AffordableHousingTaxCreditsCommitmentYearToBePaid_6F977F15C2C036D36D1CA4679CC1F425" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Affordable Housing Tax Credits Commitment, Year to be Paid</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AffordableHousingTaxCreditsCommitmentYearToBePaid" xlink:label="loc_us-gaap_AffordableHousingTaxCreditsCommitmentYearToBePaid_6F977F15C2C036D36D1CA4679CC1F425" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AffordableHousingTaxCreditsCommitmentYearToBePaid_6F977F15C2C036D36D1CA4679CC1F425" xlink:to="lab_us-gaap_AffordableHousingTaxCreditsCommitmentYearToBePaid_6F977F15C2C036D36D1CA4679CC1F425" xlink:type="arc" />
    <link:label id="lab_us-gaap_AffordableHousingProjectInvestmentWriteDownAmount_DA6AFC671699B535BF0AA4679CC1B260_terseLabel_en-US" xlink:label="lab_us-gaap_AffordableHousingProjectInvestmentWriteDownAmount_DA6AFC671699B535BF0AA4679CC1B260" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Impairment losses</link:label>
    <link:label id="lab_us-gaap_AffordableHousingProjectInvestmentWriteDownAmount_DA6AFC671699B535BF0AA4679CC1B260_label_en-US" xlink:label="lab_us-gaap_AffordableHousingProjectInvestmentWriteDownAmount_DA6AFC671699B535BF0AA4679CC1B260" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Affordable Housing Project Investment, Write-down, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AffordableHousingProjectInvestmentWriteDownAmount" xlink:label="loc_us-gaap_AffordableHousingProjectInvestmentWriteDownAmount_DA6AFC671699B535BF0AA4679CC1B260" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AffordableHousingProjectInvestmentWriteDownAmount_DA6AFC671699B535BF0AA4679CC1B260" xlink:to="lab_us-gaap_AffordableHousingProjectInvestmentWriteDownAmount_DA6AFC671699B535BF0AA4679CC1B260" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentsAbstract_CF08F7F22EF7B40AA414759877055302_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentsAbstract_8C676166934E513D9907ACA703103F44" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instruments [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentsAbstract" xlink:label="loc_us-gaap_DebtInstrumentsAbstract_8C676166934E513D9907ACA703103F44" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_8C676166934E513D9907ACA703103F44" xlink:to="lab_us-gaap_DebtInstrumentsAbstract_8C676166934E513D9907ACA703103F44" xlink:type="arc" />
    <link:label id="lab_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_388150A9CBE10F90576D7598770500D4_verboseLabel_en-US" xlink:label="lab_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_F397365D2F865B04AB96684668CE30DA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Subordinated Debentures</link:label>
    <link:label id="lab_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_388150A9CBE10F90576D7598770500D4_label_en-US" xlink:label="lab_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_F397365D2F865B04AB96684668CE30DA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust [Text Block]</link:label>
    <link:label id="lab_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_388150A9CBE10F90576D7598770500D4_documentation_en-US" xlink:label="lab_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_F397365D2F865B04AB96684668CE30DA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Junior subordinated debenture owed to unconsolidated subsidiary trust.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock" xlink:label="loc_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_F397365D2F865B04AB96684668CE30DA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_F397365D2F865B04AB96684668CE30DA" xlink:to="lab_gbci_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrustTextBlock_F397365D2F865B04AB96684668CE30DA" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_6EC1EF5FC92945166AB37598791ADB90_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_D34585E75A415F909FC953E8F4DC6D3A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Carrying amounts of consolidated VIEs' assets and liabilities</link:label>
    <link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_6EC1EF5FC92945166AB37598791ADB90_label_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_D34585E75A415F909FC953E8F4DC6D3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Variable Interest Entities [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTextBlock" xlink:label="loc_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_D34585E75A415F909FC953E8F4DC6D3A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_D34585E75A415F909FC953E8F4DC6D3A" xlink:to="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_D34585E75A415F909FC953E8F4DC6D3A" xlink:type="arc" />
    <link:label id="lab_us-gaap_EquityMethodInvestmentsTextBlock_CA18A577014B9F235F297598791A4945_terseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentsTextBlock_81F79CAE050B533DB7F417854F07F29C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortization expense and tax credits and other tax benefits recognized for qualified affordable housing project investments</link:label>
    <link:label id="lab_us-gaap_EquityMethodInvestmentsTextBlock_CA18A577014B9F235F297598791A4945_label_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentsTextBlock_81F79CAE050B533DB7F417854F07F29C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Method Investments [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EquityMethodInvestmentsTextBlock" xlink:label="loc_us-gaap_EquityMethodInvestmentsTextBlock_81F79CAE050B533DB7F417854F07F29C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityMethodInvestmentsTextBlock_81F79CAE050B533DB7F417854F07F29C" xlink:to="lab_us-gaap_EquityMethodInvestmentsTextBlock_81F79CAE050B533DB7F417854F07F29C" xlink:type="arc" />
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_7BBC07DE9C7D7E75FDED759876CC417B_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_D00C3CF40BFE5A139AE7EC86436610BC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of Compensation Related Costs, Share-based Payments [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_D00C3CF40BFE5A139AE7EC86436610BC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_D00C3CF40BFE5A139AE7EC86436610BC" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_D00C3CF40BFE5A139AE7EC86436610BC" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_97D7B351114F11B5269E759876CC03FE_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_0B0006C80EB650DA88031436C80AA4D2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_97D7B351114F11B5269E759876CC03FE_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_0B0006C80EB650DA88031436C80AA4D2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_0B0006C80EB650DA88031436C80AA4D2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_0B0006C80EB650DA88031436C80AA4D2" xlink:to="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_0B0006C80EB650DA88031436C80AA4D2" xlink:type="arc" />
    <link:label id="lab_us-gaap_AwardTypeAxis_E4ADA020DE528D05E11C759876CC1BE6_terseLabel_en-US" xlink:label="lab_us-gaap_AwardTypeAxis_C73CCBD27451545B89C70349CB8F3583" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:label id="lab_us-gaap_AwardTypeAxis_E4ADA020DE528D05E11C759876CC1BE6_label_en-US" xlink:label="lab_us-gaap_AwardTypeAxis_C73CCBD27451545B89C70349CB8F3583" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_C73CCBD27451545B89C70349CB8F3583" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AwardTypeAxis_C73CCBD27451545B89C70349CB8F3583" xlink:to="lab_us-gaap_AwardTypeAxis_C73CCBD27451545B89C70349CB8F3583" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_F41B2467188C06CEEC74759876CC02C2_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_45301B3CF284573B9479CD92026332A7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Award [Domain]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_F41B2467188C06CEEC74759876CC02C2_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_45301B3CF284573B9479CD92026332A7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Award [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_45301B3CF284573B9479CD92026332A7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_45301B3CF284573B9479CD92026332A7" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_45301B3CF284573B9479CD92026332A7" xlink:type="arc" />
    <link:label id="lab_us-gaap_RestrictedStockMember_50427FF6CC43A2C8A5A9759876CC8F26_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedStockMember_93D3D8DBB32C5C1197AECFE985582FFB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock</link:label>
    <link:label id="lab_us-gaap_RestrictedStockMember_50427FF6CC43A2C8A5A9759876CC8F26_label_en-US" xlink:label="lab_us-gaap_RestrictedStockMember_93D3D8DBB32C5C1197AECFE985582FFB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Stock [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_93D3D8DBB32C5C1197AECFE985582FFB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedStockMember_93D3D8DBB32C5C1197AECFE985582FFB" xlink:to="lab_us-gaap_RestrictedStockMember_93D3D8DBB32C5C1197AECFE985582FFB" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_30B980ADB9680315F8C8759876CC986A_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F76BEB719FFD5D1CA634D42B1F571B03" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock-based Compensation Plans</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_30B980ADB9680315F8C8759876CC986A_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F76BEB719FFD5D1CA634D42B1F571B03" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F76BEB719FFD5D1CA634D42B1F571B03" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F76BEB719FFD5D1CA634D42B1F571B03" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_F76BEB719FFD5D1CA634D42B1F571B03" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_D7DA5B3A773B3CC77076759876CD6866_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2F905CEC67235838A5F4BCA419A7EC72" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted stock award activity for the year</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_D7DA5B3A773B3CC77076759876CD6866_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2F905CEC67235838A5F4BCA419A7EC72" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2F905CEC67235838A5F4BCA419A7EC72" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2F905CEC67235838A5F4BCA419A7EC72" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_2F905CEC67235838A5F4BCA419A7EC72" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_C62F7C40B4F3FBB9E859759876CDE98F_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_7CC0CBBAB3E45AF2AC01C2DF50FF3273" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock Non-Vested, Beginning Balance</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_C62F7C40B4F3FBB9E859759876CDE98F_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_7CC0CBBAB3E45AF2AC01C2DF50FF3273" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_7CC0CBBAB3E45AF2AC01C2DF50FF3273" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_7CC0CBBAB3E45AF2AC01C2DF50FF3273" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_7CC0CBBAB3E45AF2AC01C2DF50FF3273" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_22CCE384E31214B0C7C3759876CD3A32_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_8B3925382F4E5992823CEBA4307E2FFE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock, Granted</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_22CCE384E31214B0C7C3759876CD3A32_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_8B3925382F4E5992823CEBA4307E2FFE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_8B3925382F4E5992823CEBA4307E2FFE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_8B3925382F4E5992823CEBA4307E2FFE" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_8B3925382F4E5992823CEBA4307E2FFE" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_E88B5932668D14A0137F759876CDC2F1_negatedLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_6F36BB483DE15701895FC310DFCF6CD5" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock, Vested</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_E88B5932668D14A0137F759876CDC2F1_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_6F36BB483DE15701895FC310DFCF6CD5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_6F36BB483DE15701895FC310DFCF6CD5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_6F36BB483DE15701895FC310DFCF6CD5" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_6F36BB483DE15701895FC310DFCF6CD5" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_09DC2110343718E13282759876CD2D7D_negatedLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_938B9BCB0CDD50B99B4641365729F282" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock, Forfeited</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_09DC2110343718E13282759876CD2D7D_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_938B9BCB0CDD50B99B4641365729F282" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_938B9BCB0CDD50B99B4641365729F282" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_938B9BCB0CDD50B99B4641365729F282" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_938B9BCB0CDD50B99B4641365729F282" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_E8F03285E24077F1474B759876CD4F58_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_16972B1D5B75508BA48EE54B651DF376" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock Non-Vested, Ending Balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_16972B1D5B75508BA48EE54B651DF376" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_16972B1D5B75508BA48EE54B651DF376" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_16972B1D5B75508BA48EE54B651DF376" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5C8483F26178F143A1F1759876CDD0CA_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_BB3F933823E152BB988B5FBC16F3A7A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted-average grant date fair value</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_5C8483F26178F143A1F1759876CDD0CA_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_BB3F933823E152BB988B5FBC16F3A7A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_BB3F933823E152BB988B5FBC16F3A7A9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_BB3F933823E152BB988B5FBC16F3A7A9" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_BB3F933823E152BB988B5FBC16F3A7A9" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_A50C003DFEA42006E210759876CD6874_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_C13FAC969F4E5112B8F5F7F4201918F2" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Restricted stock, weighted average grant date fair value, beginning balance</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_A50C003DFEA42006E210759876CD6874_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_C13FAC969F4E5112B8F5F7F4201918F2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_C13FAC969F4E5112B8F5F7F4201918F2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_C13FAC969F4E5112B8F5F7F4201918F2" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_C13FAC969F4E5112B8F5F7F4201918F2" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_F7FC9C83961BB79C7A83759876CDD850_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2BE22C7E5141560B920EBA5EAF49E2F4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted stock, granted, weighted average grant date fair value</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_F7FC9C83961BB79C7A83759876CDD850_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2BE22C7E5141560B920EBA5EAF49E2F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2BE22C7E5141560B920EBA5EAF49E2F4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2BE22C7E5141560B920EBA5EAF49E2F4" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_2BE22C7E5141560B920EBA5EAF49E2F4" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_1CA4F9249B61D6062B12759876CD83FA_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_29AC786842715A2E90BE3B1AD1670EBF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted stock, vested, weighted average grant date fair value</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_1CA4F9249B61D6062B12759876CD83FA_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_29AC786842715A2E90BE3B1AD1670EBF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_29AC786842715A2E90BE3B1AD1670EBF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_29AC786842715A2E90BE3B1AD1670EBF" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_29AC786842715A2E90BE3B1AD1670EBF" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_2BE41F2C015AF2929F9A759876CD24F5_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_C7C3F529CD695CBF9B190355AF5500B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted stock, forfeited, weighted average grant date fair value</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_2BE41F2C015AF2929F9A759876CD24F5_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_C7C3F529CD695CBF9B190355AF5500B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_C7C3F529CD695CBF9B190355AF5500B5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_C7C3F529CD695CBF9B190355AF5500B5" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_C7C3F529CD695CBF9B190355AF5500B5" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_25777F3FD7387166A6C5759876CDF31D_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_D99E2FC01D78569B94B607DC4F499764" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Restricted stock, weighted average grant date fair value, ending balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_D99E2FC01D78569B94B607DC4F499764" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_D99E2FC01D78569B94B607DC4F499764" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_D99E2FC01D78569B94B607DC4F499764" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_46031798213E0A52CEEFAAB6B8FAFFCB_label_en-US" xlink:label="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_46031798213E0A52CEEFAAB6B8FAFFCB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_46031798213E0A52CEEFAAB6B8FAFFCB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_46031798213E0A52CEEFAAB6B8FAFFCB" xlink:to="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_46031798213E0A52CEEFAAB6B8FAFFCB" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_7ACF6C4AC17036850EECAAB6B8FA7512_verboseLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_7ACF6C4AC17036850EECAAB6B8FA7512" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_7ACF6C4AC17036850EECAAB6B8FA7512_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_7ACF6C4AC17036850EECAAB6B8FA7512" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAbstract" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_7ACF6C4AC17036850EECAAB6B8FA7512" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_7ACF6C4AC17036850EECAAB6B8FA7512" xlink:to="lab_us-gaap_ComprehensiveIncomeNetOfTaxAbstract_7ACF6C4AC17036850EECAAB6B8FA7512" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_8105A86684A7585314F2AAB6B8FA52F4_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_8105A86684A7585314F2AAB6B8FA52F4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Unrealized gains (losses) on available-for-sale securities</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_8105A86684A7585314F2AAB6B8FA52F4_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_8105A86684A7585314F2AAB6B8FA52F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_8105A86684A7585314F2AAB6B8FA52F4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_8105A86684A7585314F2AAB6B8FA52F4" xlink:to="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax_8105A86684A7585314F2AAB6B8FA52F4" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_349410039AD30C9BB6FDAAB6B8FA4CFC_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_349410039AD30C9BB6FDAAB6B8FA4CFC" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Reclassification adjustment for losses (gains) included in net income</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_349410039AD30C9BB6FDAAB6B8FA4CFC_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_349410039AD30C9BB6FDAAB6B8FA4CFC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_349410039AD30C9BB6FDAAB6B8FA4CFC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_349410039AD30C9BB6FDAAB6B8FA4CFC" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax_349410039AD30C9BB6FDAAB6B8FA4CFC" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_80F693595A7E424DBE75AAB6B8FAF7F0_totalLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_80F693595A7E424DBE75AAB6B8FAF7F0" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net unrealized gains (losses) on available-for-sale securities</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_80F693595A7E424DBE75AAB6B8FAF7F0_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_80F693595A7E424DBE75AAB6B8FAF7F0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_80F693595A7E424DBE75AAB6B8FAF7F0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_80F693595A7E424DBE75AAB6B8FAF7F0" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax_80F693595A7E424DBE75AAB6B8FAF7F0" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_132A1A6A9701AE7563E5AAB6B8FAD678_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_132A1A6A9701AE7563E5AAB6B8FAD678" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax effect</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_132A1A6A9701AE7563E5AAB6B8FAD678_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_132A1A6A9701AE7563E5AAB6B8FAD678" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_132A1A6A9701AE7563E5AAB6B8FAD678" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_132A1A6A9701AE7563E5AAB6B8FAD678" xlink:to="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax_132A1A6A9701AE7563E5AAB6B8FAD678" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_51D5C9CA7BEA27D1E446AAB6B8FA6FDB_totalLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_51D5C9CA7BEA27D1E446AAB6B8FA6FDB" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net of tax amount</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_51D5C9CA7BEA27D1E446AAB6B8FA6FDB_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_51D5C9CA7BEA27D1E446AAB6B8FA6FDB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_51D5C9CA7BEA27D1E446AAB6B8FA6FDB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_51D5C9CA7BEA27D1E446AAB6B8FA6FDB" xlink:to="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_51D5C9CA7BEA27D1E446AAB6B8FA6FDB" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_9876A8D9B52DBA158474AAB6B8FACFAA_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_9876A8D9B52DBA158474AAB6B8FACFAA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrealized gains (losses) on derivatives used for cash flow hedges</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_9876A8D9B52DBA158474AAB6B8FACFAA_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_9876A8D9B52DBA158474AAB6B8FACFAA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_9876A8D9B52DBA158474AAB6B8FACFAA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_9876A8D9B52DBA158474AAB6B8FACFAA" xlink:to="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_9876A8D9B52DBA158474AAB6B8FACFAA" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax_DA3CD69AB47B09E79C83AAB6B8FAB08F_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax_DA3CD69AB47B09E79C83AAB6B8FAB08F" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Reclassification adjustment for losses included in net income</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax_DA3CD69AB47B09E79C83AAB6B8FAB08F_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax_DA3CD69AB47B09E79C83AAB6B8FAB08F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax_DA3CD69AB47B09E79C83AAB6B8FAB08F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax_DA3CD69AB47B09E79C83AAB6B8FAB08F" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax_DA3CD69AB47B09E79C83AAB6B8FAB08F" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax_C49361CE1593EE520846AAB6B8FA4AF3_totalLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax_C49361CE1593EE520846AAB6B8FA4AF3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net unrealized gains (losses) on derivatives used for cash flow hedges</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax_C49361CE1593EE520846AAB6B8FA4AF3_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax_C49361CE1593EE520846AAB6B8FA4AF3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax_C49361CE1593EE520846AAB6B8FA4AF3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax_C49361CE1593EE520846AAB6B8FA4AF3" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTax_C49361CE1593EE520846AAB6B8FA4AF3" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_2CCFB5A5070BB714E8C3AAB6B8FAA869_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_2CCFB5A5070BB714E8C3AAB6B8FAA869" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Tax effect</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_2CCFB5A5070BB714E8C3AAB6B8FAA869_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_2CCFB5A5070BB714E8C3AAB6B8FAA869" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_2CCFB5A5070BB714E8C3AAB6B8FAA869" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_2CCFB5A5070BB714E8C3AAB6B8FAA869" xlink:to="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax_2CCFB5A5070BB714E8C3AAB6B8FAA869" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_E4C65326AC8B13B6E226AAB6B8FA8348_totalLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_E4C65326AC8B13B6E226AAB6B8FA8348" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net of tax amount</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_E4C65326AC8B13B6E226AAB6B8FA8348_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_E4C65326AC8B13B6E226AAB6B8FA8348" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_E4C65326AC8B13B6E226AAB6B8FA8348" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_E4C65326AC8B13B6E226AAB6B8FA8348" xlink:to="lab_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax_E4C65326AC8B13B6E226AAB6B8FA8348" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F8A7625910625F5BF433AAB6B8FA875E_totalLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F8A7625910625F5BF433AAB6B8FA875E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total other comprehensive income (loss), net of tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F8A7625910625F5BF433AAB6B8FA875E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F8A7625910625F5BF433AAB6B8FA875E" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_F8A7625910625F5BF433AAB6B8FA875E" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_2F5E9663DB3A899E3A3FAAB6B8FAD07C_totalLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax_2F5E9663DB3A899E3A3FAAB6B8FAD07C" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Comprehensive Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_2F5E9663DB3A899E3A3FAAB6B8FAD07C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_2F5E9663DB3A899E3A3FAAB6B8FAD07C" xlink:to="lab_us-gaap_ComprehensiveIncomeNetOfTax_2F5E9663DB3A899E3A3FAAB6B8FAD07C" xlink:type="arc" />
    <link:label id="lab_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6_terseLabel_en-US" xlink:label="lab_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Collegiate Peaks Bank</link:label>
    <link:label id="lab_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6_label_en-US" xlink:label="lab_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Collegiate Peaks Bank [Member]</link:label>
    <link:label id="lab_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6_documentation_en-US" xlink:label="lab_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Collegiate Peaks Bank [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CollegiatePeaksBankMember" xlink:label="loc_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6" xlink:to="lab_gbci_CollegiatePeaksBankMember_DAD13D642F46361AF997B93F239F62A6" xlink:type="arc" />
    <link:label id="lab_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474_terseLabel_en-US" xlink:label="lab_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">First Security Bank</link:label>
    <link:label id="lab_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474_label_en-US" xlink:label="lab_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">First Security Bank [Member]</link:label>
    <link:label id="lab_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474_documentation_en-US" xlink:label="lab_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">First Security Bank [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FirstSecurityBankMember" xlink:label="loc_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474" xlink:to="lab_gbci_FirstSecurityBankMember_28DC3791A41993980D0BB93F239F7474" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3CDCB738BD8CBD34D191B93F23A048B1_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3CDCB738BD8CBD34D191B93F23A048B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment by Type [Axis]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3CDCB738BD8CBD34D191B93F23A048B1_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3CDCB738BD8CBD34D191B93F23A048B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3CDCB738BD8CBD34D191B93F23A048B1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3CDCB738BD8CBD34D191B93F23A048B1" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_3CDCB738BD8CBD34D191B93F23A048B1" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_DCCBEB42B225A8468D07B93F23A01CEA_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_DCCBEB42B225A8468D07B93F23A01CEA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Type [Domain]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_DCCBEB42B225A8468D07B93F23A01CEA_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_DCCBEB42B225A8468D07B93F23A01CEA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Type [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DCCBEB42B225A8468D07B93F23A01CEA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_DCCBEB42B225A8468D07B93F23A01CEA" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_DCCBEB42B225A8468D07B93F23A01CEA" xlink:type="arc" />
    <link:label id="lab_us-gaap_BuildingMember_FF1E8AA7B239DB8F9DAAB93F23A0A2AC_verboseLabel_en-US" xlink:label="lab_us-gaap_BuildingMember_FF1E8AA7B239DB8F9DAAB93F23A0A2AC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Office Buildings</link:label>
    <link:label id="lab_us-gaap_BuildingMember_FF1E8AA7B239DB8F9DAAB93F23A0A2AC_label_en-US" xlink:label="lab_us-gaap_BuildingMember_FF1E8AA7B239DB8F9DAAB93F23A0A2AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Building [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_FF1E8AA7B239DB8F9DAAB93F23A0A2AC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BuildingMember_FF1E8AA7B239DB8F9DAAB93F23A0A2AC" xlink:to="lab_us-gaap_BuildingMember_FF1E8AA7B239DB8F9DAAB93F23A0A2AC" xlink:type="arc" />
    <link:label id="lab_us-gaap_FurnitureAndFixturesMember_51CCADB3CFC0D7763250B93F23A0CCBC_verboseLabel_en-US" xlink:label="lab_us-gaap_FurnitureAndFixturesMember_51CCADB3CFC0D7763250B93F23A0CCBC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Furniture, fixtures and equipment</link:label>
    <link:label id="lab_us-gaap_FurnitureAndFixturesMember_51CCADB3CFC0D7763250B93F23A0CCBC_label_en-US" xlink:label="lab_us-gaap_FurnitureAndFixturesMember_51CCADB3CFC0D7763250B93F23A0CCBC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Furniture and Fixtures [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FurnitureAndFixturesMember" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_51CCADB3CFC0D7763250B93F23A0CCBC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FurnitureAndFixturesMember_51CCADB3CFC0D7763250B93F23A0CCBC" xlink:to="lab_us-gaap_FurnitureAndFixturesMember_51CCADB3CFC0D7763250B93F23A0CCBC" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancialInstrumentAxis_81DC7C28E7013944B451B93F23A19794_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialInstrumentAxis_81DC7C28E7013944B451B93F23A19794" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Instrument [Axis]</link:label>
    <link:label id="lab_us-gaap_FinancialInstrumentAxis_81DC7C28E7013944B451B93F23A19794_label_en-US" xlink:label="lab_us-gaap_FinancialInstrumentAxis_81DC7C28E7013944B451B93F23A19794" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instrument [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_81DC7C28E7013944B451B93F23A19794" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialInstrumentAxis_81DC7C28E7013944B451B93F23A19794" xlink:to="lab_us-gaap_FinancialInstrumentAxis_81DC7C28E7013944B451B93F23A19794" xlink:type="arc" />
    <link:label id="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D963960B116FA4E828E7B93F23A1FCD1_terseLabel_en-US" xlink:label="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D963960B116FA4E828E7B93F23A1FCD1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Instruments [Domain]</link:label>
    <link:label id="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D963960B116FA4E828E7B93F23A1FCD1_label_en-US" xlink:label="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D963960B116FA4E828E7B93F23A1FCD1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instruments [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D963960B116FA4E828E7B93F23A1FCD1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D963960B116FA4E828E7B93F23A1FCD1" xlink:to="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_D963960B116FA4E828E7B93F23A1FCD1" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestRateLockCommitmentsMember_B95E142F06F0C09BEEF9B93F23A1D108_terseLabel_en-US" xlink:label="lab_us-gaap_InterestRateLockCommitmentsMember_B95E142F06F0C09BEEF9B93F23A1D108" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Rate Lock Commitments</link:label>
    <link:label id="lab_us-gaap_InterestRateLockCommitmentsMember_B95E142F06F0C09BEEF9B93F23A1D108_label_en-US" xlink:label="lab_us-gaap_InterestRateLockCommitmentsMember_B95E142F06F0C09BEEF9B93F23A1D108" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Rate Lock Commitments [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestRateLockCommitmentsMember" xlink:label="loc_us-gaap_InterestRateLockCommitmentsMember_B95E142F06F0C09BEEF9B93F23A1D108" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestRateLockCommitmentsMember_B95E142F06F0C09BEEF9B93F23A1D108" xlink:to="lab_us-gaap_InterestRateLockCommitmentsMember_B95E142F06F0C09BEEF9B93F23A1D108" xlink:type="arc" />
    <link:label id="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925_terseLabel_en-US" xlink:label="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments Due to New Accounting Pronouncements [Axis]</link:label>
    <link:label id="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925_label_en-US" xlink:label="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments Due to New Accounting Pronouncements [Axis]</link:label>
    <link:label id="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925_documentation_en-US" xlink:label="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments Due to New Accounting Pronouncements [Axis]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis" xlink:label="loc_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925" xlink:to="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsAxis_BF034124E366727EF183B93F23A15925" xlink:type="arc" />
    <link:label id="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973_terseLabel_en-US" xlink:label="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Adjustments Due to New Accounting Pronouncements [Domain]</link:label>
    <link:label id="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973_label_en-US" xlink:label="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments Due to New Accounting Pronouncements [Domain]</link:label>
    <link:label id="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973_documentation_en-US" xlink:label="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Adjustments Due to New Accounting Pronouncements [Domain]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain" xlink:label="loc_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973" xlink:to="lab_gbci_AdjustmentsDuetoNewAccountingPronouncementsDomain_4AA01D150B26B0C8DAD9B93F23A18973" xlink:type="arc" />
    <link:label id="lab_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A_terseLabel_en-US" xlink:label="lab_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting Standards Update 2018-02</link:label>
    <link:label id="lab_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A_label_en-US" xlink:label="lab_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Standards Update 2018-02 [Member]</link:label>
    <link:label id="lab_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A_documentation_en-US" xlink:label="lab_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accounting Standards Update 2018-02 - Income Statement - Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AccountingStandardsUpdate201802Member" xlink:label="loc_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A" xlink:to="lab_gbci_AccountingStandardsUpdate201802Member_8BA9FA0B0D841033F078B93F23A1DD1A" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccountingStandardsUpdate201609Member_CE0B087F3D317DEE5353B93F23A18AF6_terseLabel_en-US" xlink:label="lab_us-gaap_AccountingStandardsUpdate201609Member_CE0B087F3D317DEE5353B93F23A18AF6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting Standards Update 2016-09</link:label>
    <link:label id="lab_us-gaap_AccountingStandardsUpdate201609Member_CE0B087F3D317DEE5353B93F23A18AF6_label_en-US" xlink:label="lab_us-gaap_AccountingStandardsUpdate201609Member_CE0B087F3D317DEE5353B93F23A18AF6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Standards Update 2016-09 [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountingStandardsUpdate201609Member" xlink:label="loc_us-gaap_AccountingStandardsUpdate201609Member_CE0B087F3D317DEE5353B93F23A18AF6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountingStandardsUpdate201609Member_CE0B087F3D317DEE5353B93F23A18AF6" xlink:to="lab_us-gaap_AccountingStandardsUpdate201609Member_CE0B087F3D317DEE5353B93F23A18AF6" xlink:type="arc" />
    <link:label id="lab_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843_terseLabel_en-US" xlink:label="lab_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting Standards Update 2017-08</link:label>
    <link:label id="lab_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843_label_en-US" xlink:label="lab_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Standards Update 2017-08 [Member]</link:label>
    <link:label id="lab_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843_documentation_en-US" xlink:label="lab_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accounting Standards Update 2017-08 - Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20): Premium Amortization on Purchased Callable Debt Securities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AccountingStandardsUpdate201708Member" xlink:label="loc_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843" xlink:to="lab_gbci_AccountingStandardsUpdate201708Member_094DA15089EADC45104EB93F23A1E843" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementLineItems_7B2C0E1AC9F460299ABBB93F23A10795_verboseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems_7B2C0E1AC9F460299ABBB93F23A10795" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Nature of Operations and Summary of Significant Accounting Policies</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_7B2C0E1AC9F460299ABBB93F23A10795" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems_7B2C0E1AC9F460299ABBB93F23A10795" xlink:to="lab_us-gaap_StatementLineItems_7B2C0E1AC9F460299ABBB93F23A10795" xlink:type="arc" />
    <link:label id="lab_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E_terseLabel_en-US" xlink:label="lab_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Bank Divisions</link:label>
    <link:label id="lab_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E_label_en-US" xlink:label="lab_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Bank Divisions</link:label>
    <link:label id="lab_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E_documentation_en-US" xlink:label="lab_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of Bank Divisions</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_NumberOfBankDivisions" xlink:label="loc_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E" xlink:to="lab_gbci_NumberOfBankDivisions_AAAF644F064735DAE1CAB93F23A1352E" xlink:type="arc" />
    <link:label id="lab_us-gaap_NumberOfOperatingSegments_3E89BB8FBBC66AC99D89B93F23A14C26_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments_3E89BB8FBBC66AC99D89B93F23A14C26" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Operating Segments</link:label>
    <link:label id="lab_us-gaap_NumberOfOperatingSegments_3E89BB8FBBC66AC99D89B93F23A14C26_label_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments_3E89BB8FBBC66AC99D89B93F23A14C26" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Operating Segments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NumberOfOperatingSegments" xlink:label="loc_us-gaap_NumberOfOperatingSegments_3E89BB8FBBC66AC99D89B93F23A14C26" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NumberOfOperatingSegments_3E89BB8FBBC66AC99D89B93F23A14C26" xlink:to="lab_us-gaap_NumberOfOperatingSegments_3E89BB8FBBC66AC99D89B93F23A14C26" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_CCFA2C7F53C15782959BB93F23A1ADEF_terseLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_CCFA2C7F53C15782959BB93F23A1ADEF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross loans</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome" xlink:label="loc_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_CCFA2C7F53C15782959BB93F23A1ADEF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_CCFA2C7F53C15782959BB93F23A1ADEF" xlink:to="lab_us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome_CCFA2C7F53C15782959BB93F23A1ADEF" xlink:type="arc" />
    <link:label id="lab_us-gaap_Deposits_A6E2558AA5B152814148B93F23A21732_terseLabel_en-US" xlink:label="lab_us-gaap_Deposits_A6E2558AA5B152814148B93F23A21732" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total deposits</link:label>
    <link:label id="lab_us-gaap_Deposits_A6E2558AA5B152814148B93F23A21732_label_en-US" xlink:label="lab_us-gaap_Deposits_A6E2558AA5B152814148B93F23A21732" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Deposits" xlink:label="loc_us-gaap_Deposits_A6E2558AA5B152814148B93F23A21732" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Deposits_A6E2558AA5B152814148B93F23A21732" xlink:to="lab_us-gaap_Deposits_A6E2558AA5B152814148B93F23A21732" xlink:type="arc" />
    <link:label id="lab_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F_terseLabel_en-US" xlink:label="lab_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum Period of Original Maturity to be Included in Cash and Cash Equivalents</link:label>
    <link:label id="lab_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F_label_en-US" xlink:label="lab_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum Period of Original Maturity to be Included in Cash and Cash Equivalents</link:label>
    <link:label id="lab_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F_documentation_en-US" xlink:label="lab_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Maximum Period of Original Maturity to be Included in Cash and Cash Equivalents</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents" xlink:label="loc_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F" xlink:to="lab_gbci_MaximumPeriodofOriginalMaturitytobeIncludedinCashandCashEquivalents_10268803017DACE8002FB93F23A26A9F" xlink:type="arc" />
    <link:label id="lab_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71_terseLabel_en-US" xlink:label="lab_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Federal Reserve Balance or Cash on Hand Required</link:label>
    <link:label id="lab_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71_label_en-US" xlink:label="lab_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Reserve Balance or Cash on Hand Required</link:label>
    <link:label id="lab_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71_documentation_en-US" xlink:label="lab_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Federal Reserve balance or cash on hand required.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FederalReserveBalanceOrCashOnHandRequired" xlink:label="loc_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71" xlink:to="lab_gbci_FederalReserveBalanceOrCashOnHandRequired_28F00E31EA13043FA5E4B93F23A2CB71" xlink:type="arc" />
    <link:label id="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3_terseLabel_en-US" xlink:label="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum Period Past Due to Consider Loans as Delinquent</link:label>
    <link:label id="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3_label_en-US" xlink:label="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum Period Past Due to Consider Loans as Delinquent</link:label>
    <link:label id="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3_documentation_en-US" xlink:label="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Minimum Period Past Due to Consider Loans as Delinquent</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent" xlink:label="loc_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3" xlink:to="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasDelinquent_C609EEB118B1FEE20535B93F23A2C6C3" xlink:type="arc" />
    <link:label id="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36_terseLabel_en-US" xlink:label="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum Period Past Due to Consider Loans as Non Accrual</link:label>
    <link:label id="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36_label_en-US" xlink:label="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum Period Past Due to Consider Loans as Non Accrual</link:label>
    <link:label id="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36_documentation_en-US" xlink:label="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Minimum Period Past Due to Consider Loans as Non Accrual</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual" xlink:label="loc_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36" xlink:to="lab_gbci_MinimumPeriodPastDuetoConsiderLoansasNonAccrual_A1210DCC1DB882947233B93F23A2EB36" xlink:type="arc" />
    <link:label id="lab_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83_terseLabel_en-US" xlink:label="lab_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of years for home equity loan origination term</link:label>
    <link:label id="lab_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83_label_en-US" xlink:label="lab_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of years for home equity loan origination term</link:label>
    <link:label id="lab_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83_documentation_en-US" xlink:label="lab_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of years for home equity loan origination term</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_Numberofyearsforhomeequityloanoriginationterm" xlink:label="loc_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83" xlink:to="lab_gbci_Numberofyearsforhomeequityloanoriginationterm_AAEC5195DB151DBCB06FB93F23A25A83" xlink:type="arc" />
    <link:label id="lab_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86_terseLabel_en-US" xlink:label="lab_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Quarters Used to Evaluate Historical Loss Experience</link:label>
    <link:label id="lab_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86_label_en-US" xlink:label="lab_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses, Number of Quarters Used to Evaluate Historical Loss Experience</link:label>
    <link:label id="lab_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86_documentation_en-US" xlink:label="lab_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The number of quarters used to evaluate the historical loss experience when determining the general valuation allowance component of the allowance for credit losses.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience" xlink:label="loc_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86" xlink:to="lab_gbci_FinancingReceivableAllowanceforCreditLossesNumberofQuartersUsedtoEvaluateHistoricalLossExperience_E5C51F75A3AD04D31830B93F23A27E86" xlink:type="arc" />
    <link:label id="lab_us-gaap_ThresholdPeriodPastDueForWriteoffOfFinancingReceivable_75736E3E1B74C2CB6876B93F23A2C5B2_terseLabel_en-US" xlink:label="lab_us-gaap_ThresholdPeriodPastDueForWriteoffOfFinancingReceivable_75736E3E1B74C2CB6876B93F23A2C5B2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum Number of Days Delinquent to Charge Off Loans</link:label>
    <link:label id="lab_us-gaap_ThresholdPeriodPastDueForWriteoffOfFinancingReceivable_75736E3E1B74C2CB6876B93F23A2C5B2_label_en-US" xlink:label="lab_us-gaap_ThresholdPeriodPastDueForWriteoffOfFinancingReceivable_75736E3E1B74C2CB6876B93F23A2C5B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Threshold Period Past Due for Write-off of Financing Receivable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ThresholdPeriodPastDueForWriteoffOfFinancingReceivable" xlink:label="loc_us-gaap_ThresholdPeriodPastDueForWriteoffOfFinancingReceivable_75736E3E1B74C2CB6876B93F23A2C5B2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ThresholdPeriodPastDueForWriteoffOfFinancingReceivable_75736E3E1B74C2CB6876B93F23A2C5B2" xlink:to="lab_us-gaap_ThresholdPeriodPastDueForWriteoffOfFinancingReceivable_75736E3E1B74C2CB6876B93F23A2C5B2" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_EAB1A0DC9BFD5FF20D14B93F23A2C63F_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_EAB1A0DC9BFD5FF20D14B93F23A2C63F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Useful life of premises and equipment</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_EAB1A0DC9BFD5FF20D14B93F23A2C63F_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_EAB1A0DC9BFD5FF20D14B93F23A2C63F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Useful Life</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_EAB1A0DC9BFD5FF20D14B93F23A2C63F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_EAB1A0DC9BFD5FF20D14B93F23A2C63F" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentUsefulLife_EAB1A0DC9BFD5FF20D14B93F23A2C63F" xlink:type="arc" />
    <link:label id="lab_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB_verboseLabel_en-US" xlink:label="lab_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maximum period up to which purchase price of business is allocated to assets acquired and liabilities assumed</link:label>
    <link:label id="lab_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB_label_en-US" xlink:label="lab_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum Period up to Which Purchase Price of Business is Allocated to Assets Acquired and Liabilities Assumed</link:label>
    <link:label id="lab_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB_documentation_en-US" xlink:label="lab_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Maximum Period up to Which Purchase Price of Business is Allocated to Assets Acquired and Liabilities Assumed.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed" xlink:label="loc_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB" xlink:to="lab_gbci_MaximumPeriodUpToWhichPurchasePriceOfBusinessIsAllocatedToAssetsAcquiredAndLiabilitiesAssumed_50399D801C28167EA778B93F23A229CB" xlink:type="arc" />
    <link:label id="lab_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065_terseLabel_en-US" xlink:label="lab_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Reporting Units Subsequent to Aggregation for Goodwill Assessment</link:label>
    <link:label id="lab_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065_label_en-US" xlink:label="lab_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Reporting Units Subsequent to Aggregation for Goodwill Assessment</link:label>
    <link:label id="lab_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065_documentation_en-US" xlink:label="lab_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of Reporting Units Subsequent to Aggregation for Goodwill Assessment</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment" xlink:label="loc_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065" xlink:to="lab_gbci_NumberOfReportingUnitsSubsequentToAggregationForGoodwillAssessment_457760430FDFD0B886E5B93F23A20065" xlink:type="arc" />
    <link:label id="lab_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4_terseLabel_en-US" xlink:label="lab_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of steps included in goodwill impairment test</link:label>
    <link:label id="lab_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4_label_en-US" xlink:label="lab_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of steps included in goodwill impairment test</link:label>
    <link:label id="lab_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4_documentation_en-US" xlink:label="lab_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of steps included in goodwill impairment test</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_Numberofstepsincludedingoodwillimpairmenttest" xlink:label="loc_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4" xlink:to="lab_gbci_Numberofstepsincludedingoodwillimpairmenttest_1E0C8D4A740937DE7A35B93F23A2BCB4" xlink:type="arc" />
    <link:label id="lab_us-gaap_BankOwnedLifeInsurance_2EAF805003C7E0220E53B93F23A2A561_terseLabel_en-US" xlink:label="lab_us-gaap_BankOwnedLifeInsurance_2EAF805003C7E0220E53B93F23A2A561" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bank Owned Life Insurance</link:label>
    <link:label id="lab_us-gaap_BankOwnedLifeInsurance_2EAF805003C7E0220E53B93F23A2A561_label_en-US" xlink:label="lab_us-gaap_BankOwnedLifeInsurance_2EAF805003C7E0220E53B93F23A2A561" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank Owned Life Insurance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BankOwnedLifeInsurance" xlink:label="loc_us-gaap_BankOwnedLifeInsurance_2EAF805003C7E0220E53B93F23A2A561" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BankOwnedLifeInsurance_2EAF805003C7E0220E53B93F23A2A561" xlink:to="lab_us-gaap_BankOwnedLifeInsurance_2EAF805003C7E0220E53B93F23A2A561" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability_A7ED370C3D118442E23BB93F23A27B20_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability_A7ED370C3D118442E23BB93F23A27B20" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Off-balance Sheet Commitments</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability_A7ED370C3D118442E23BB93F23A27B20_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability_A7ED370C3D118442E23BB93F23A27B20" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Liability</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability" xlink:label="loc_us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability_A7ED370C3D118442E23BB93F23A27B20" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability_A7ED370C3D118442E23BB93F23A27B20" xlink:to="lab_us-gaap_FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability_A7ED370C3D118442E23BB93F23A27B20" xlink:type="arc" />
    <link:label id="lab_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501_verboseLabel_en-US" xlink:label="lab_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percentage of likelihood for term more likely than not as it relates to income taxes</link:label>
    <link:label id="lab_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501_label_en-US" xlink:label="lab_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of Likelihood for Term More Likely Than Not</link:label>
    <link:label id="lab_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501_documentation_en-US" xlink:label="lab_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage of likelihood for term more likely than not.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot" xlink:label="loc_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501" xlink:to="lab_gbci_PercentageOfLikelihoodForTermMoreLikelyThanNot_EF1AF8E6D75F8155DF91B93F23A2C501" xlink:type="arc" />
    <link:label id="lab_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532_terseLabel_en-US" xlink:label="lab_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Federal Tax Rate Subsequent to Enactment of The Tax Cuts and Jobs Act</link:label>
    <link:label id="lab_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532_label_en-US" xlink:label="lab_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Tax Rate Subsequent to Enactment of The Tax Cuts and Jobs Act</link:label>
    <link:label id="lab_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532_documentation_en-US" xlink:label="lab_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Federal Tax Rate Subsequent to Enactment of The Tax Cuts and Jobs Act</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct" xlink:label="loc_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532" xlink:to="lab_gbci_FederalTaxRateSubsequenttoEnactmentofTheTaxCutsandJobsAct_6B90015679B6BBB29360B9AD09F61532" xlink:type="arc" />
    <link:label id="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_4AD100A26F82352F5DBDB93F23A2F874_negatedLabel_en-US" xlink:label="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_4AD100A26F82352F5DBDB93F23A2F874" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Reclassifications from accumulated other comprehensive income (loss) to retained earnings</link:label>
    <link:label id="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_4AD100A26F82352F5DBDB93F23A2F874_label_en-US" xlink:label="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_4AD100A26F82352F5DBDB93F23A2F874" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification from AOCI, Current Period, Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationFromAociCurrentPeriodTax" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_4AD100A26F82352F5DBDB93F23A2F874" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_4AD100A26F82352F5DBDB93F23A2F874" xlink:to="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_4AD100A26F82352F5DBDB93F23A2F874" xlink:type="arc" />
    <link:label id="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome_1C6B7CBD85F693AB93CAB93F23A2C7CB_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome_1C6B7CBD85F693AB93CAB93F23A2C7CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of change on net income from applying new accounting pronouncement</link:label>
    <link:label id="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome_1C6B7CBD85F693AB93CAB93F23A2C7CB_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome_1C6B7CBD85F693AB93CAB93F23A2C7CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome" xlink:label="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome_1C6B7CBD85F693AB93CAB93F23A2C7CB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome_1C6B7CBD85F693AB93CAB93F23A2C7CB" xlink:to="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome_1C6B7CBD85F693AB93CAB93F23A2C7CB" xlink:type="arc" />
    <link:label id="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare_D923DFD20C824DCE4609B93F23A3CC82_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare_D923DFD20C824DCE4609B93F23A3CC82" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of change on diluted earnings per share from applying new accounting pronouncement</link:label>
    <link:label id="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare_D923DFD20C824DCE4609B93F23A3CC82_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare_D923DFD20C824DCE4609B93F23A3CC82" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare" xlink:label="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare_D923DFD20C824DCE4609B93F23A3CC82" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare_D923DFD20C824DCE4609B93F23A3CC82" xlink:to="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare_D923DFD20C824DCE4609B93F23A3CC82" xlink:type="arc" />
    <link:label id="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_784C6E2F8A073767AC07B93F23A335EB_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_784C6E2F8A073767AC07B93F23A335EB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Effect of cumulative change on retained earnings from applying new accounting pronouncement</link:label>
    <link:label id="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_784C6E2F8A073767AC07B93F23A335EB_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_784C6E2F8A073767AC07B93F23A335EB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1" xlink:label="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_784C6E2F8A073767AC07B93F23A335EB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_784C6E2F8A073767AC07B93F23A335EB" xlink:to="lab_us-gaap_NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1_784C6E2F8A073767AC07B93F23A335EB" xlink:type="arc" />
    <link:label id="lab_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E_terseLabel_en-US" xlink:label="lab_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Period to begin developing and implementing processes and procedures for FASB Accounting Standards Update 2016-13</link:label>
    <link:label id="lab_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E_label_en-US" xlink:label="lab_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Period to begin developing and implementing processes and procedures for FASB Update</link:label>
    <link:label id="lab_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E_documentation_en-US" xlink:label="lab_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Period to begin developing and implementing processes and procedures for FASB Update</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate" xlink:label="loc_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E" xlink:to="lab_gbci_PeriodtobegindevelopingandimplementingprocessesandproceduresforFASBUpdate_443B6563FD3994F2F605B93F23A3147E" xlink:type="arc" />
    <link:label id="lab_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802_terseLabel_en-US" xlink:label="lab_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum lease term to not recognize lease assets and liabilities</link:label>
    <link:label id="lab_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802_label_en-US" xlink:label="lab_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum lease term to not recognize lease assets and liabilities</link:label>
    <link:label id="lab_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802_documentation_en-US" xlink:label="lab_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Maximum lease term to not recognize lease assets and liabilities</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities" xlink:label="loc_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802" xlink:to="lab_gbci_Maximumleasetermtonotrecognizeleaseassetsandliabilities_E693DC1505A4DF6C8EA7B93F23A3F802" xlink:type="arc" />
    <link:label id="lab_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758_terseLabel_en-US" xlink:label="lab_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Steps to Achieve Core Revenue Recognition Principal</link:label>
    <link:label id="lab_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758_label_en-US" xlink:label="lab_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of Steps to Achieve Core Revenue Recognition Principal</link:label>
    <link:label id="lab_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758_documentation_en-US" xlink:label="lab_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of Steps to Achieve Core Revenue Recognition Principal</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal" xlink:label="loc_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758" xlink:to="lab_gbci_NumberofStepstoAchieveCoreRevenueRecognitionPrincipal_FBF20E5BBF81317D3C15B93F23A36758" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtDisclosureAbstract_2BC11E5FC25A22778A3DA573A80D132E_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract_2BC11E5FC25A22778A3DA573A80D132E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_2BC11E5FC25A22778A3DA573A80D132E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureAbstract_2BC11E5FC25A22778A3DA573A80D132E" xlink:to="lab_us-gaap_DebtDisclosureAbstract_2BC11E5FC25A22778A3DA573A80D132E" xlink:type="arc" />
    <link:label id="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable_0C2AFE75EA2DFD6BCDE3A573A80DDE43_terseLabel_en-US" xlink:label="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable_0C2AFE75EA2DFD6BCDE3A573A80DDE43" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table]</link:label>
    <link:label id="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable_0C2AFE75EA2DFD6BCDE3A573A80DDE43_label_en-US" xlink:label="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable_0C2AFE75EA2DFD6BCDE3A573A80DDE43" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable" xlink:label="loc_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable_0C2AFE75EA2DFD6BCDE3A573A80DDE43" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable_0C2AFE75EA2DFD6BCDE3A573A80DDE43" xlink:to="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTable_0C2AFE75EA2DFD6BCDE3A573A80DDE43" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis_5B831C622802756FA9B8A573A80D1650_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis_5B831C622802756FA9B8A573A80D1650" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase Agreements and Similar Transactions, Maturity Periods [Axis]</link:label>
    <link:label id="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis_5B831C622802756FA9B8A573A80D1650_label_en-US" xlink:label="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis_5B831C622802756FA9B8A573A80D1650" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repurchase Agreements and Similar Transactions, Maturity Periods [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis" xlink:label="loc_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis_5B831C622802756FA9B8A573A80D1650" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis_5B831C622802756FA9B8A573A80D1650" xlink:to="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodsAxis_5B831C622802756FA9B8A573A80D1650" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain_B10B4463E8A6124949DCA573A80D80CC_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain_B10B4463E8A6124949DCA573A80D80CC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase Agreements and Similar Transactions, Maturity Periods [Domain]</link:label>
    <link:label id="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain_B10B4463E8A6124949DCA573A80D80CC_label_en-US" xlink:label="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain_B10B4463E8A6124949DCA573A80D80CC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repurchase Agreements and Similar Transactions, Maturity Periods [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain" xlink:label="loc_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain_B10B4463E8A6124949DCA573A80D80CC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain_B10B4463E8A6124949DCA573A80D80CC" xlink:to="lab_us-gaap_AssetsSoldUnderAgreementsToRepurchaseMaturityPeriodDomain_B10B4463E8A6124949DCA573A80D80CC" xlink:type="arc" />
    <link:label id="lab_us-gaap_MaturityOvernightMember_66EA0FAEB71585AF2649A573A80D7781_terseLabel_en-US" xlink:label="lab_us-gaap_MaturityOvernightMember_66EA0FAEB71585AF2649A573A80D7781" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Overnight and Continuous</link:label>
    <link:label id="lab_us-gaap_MaturityOvernightMember_66EA0FAEB71585AF2649A573A80D7781_label_en-US" xlink:label="lab_us-gaap_MaturityOvernightMember_66EA0FAEB71585AF2649A573A80D7781" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturity Overnight [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaturityOvernightMember" xlink:label="loc_us-gaap_MaturityOvernightMember_66EA0FAEB71585AF2649A573A80D7781" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MaturityOvernightMember_66EA0FAEB71585AF2649A573A80D7781" xlink:to="lab_us-gaap_MaturityOvernightMember_66EA0FAEB71585AF2649A573A80D7781" xlink:type="arc" />
    <link:label id="lab_us-gaap_MaturityUpTo30DaysMember_E97BA69BB9AFFA2016EBA573A80DB994_terseLabel_en-US" xlink:label="lab_us-gaap_MaturityUpTo30DaysMember_E97BA69BB9AFFA2016EBA573A80DB994" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Up to 30 Days</link:label>
    <link:label id="lab_us-gaap_MaturityUpTo30DaysMember_E97BA69BB9AFFA2016EBA573A80DB994_label_en-US" xlink:label="lab_us-gaap_MaturityUpTo30DaysMember_E97BA69BB9AFFA2016EBA573A80DB994" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maturity Less than 30 Days [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MaturityUpTo30DaysMember" xlink:label="loc_us-gaap_MaturityUpTo30DaysMember_E97BA69BB9AFFA2016EBA573A80DB994" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MaturityUpTo30DaysMember_E97BA69BB9AFFA2016EBA573A80DB994" xlink:to="lab_us-gaap_MaturityUpTo30DaysMember_E97BA69BB9AFFA2016EBA573A80DB994" xlink:type="arc" />
    <link:label id="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems_9F057707582B6CB614FBA573A80DB558_terseLabel_en-US" xlink:label="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems_9F057707582B6CB614FBA573A80DB558" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Securities Sold Under Agreements to Repurchase</link:label>
    <link:label id="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems_9F057707582B6CB614FBA573A80DB558_label_en-US" xlink:label="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems_9F057707582B6CB614FBA573A80DB558" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems" xlink:label="loc_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems_9F057707582B6CB614FBA573A80DB558" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems_9F057707582B6CB614FBA573A80DB558" xlink:to="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsLineItems_9F057707582B6CB614FBA573A80DB558" xlink:type="arc" />
    <link:label id="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_B5ED3AA0FAF0319D3050A573A80DCB2B_terseLabel_en-US" xlink:label="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_B5ED3AA0FAF0319D3050A573A80DCB2B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase Agreements</link:label>
    <link:label id="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_B5ED3AA0FAF0319D3050A573A80DCB2B_label_en-US" xlink:label="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_B5ED3AA0FAF0319D3050A573A80DCB2B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securities Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement" xlink:label="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_B5ED3AA0FAF0319D3050A573A80DCB2B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_B5ED3AA0FAF0319D3050A573A80DCB2B" xlink:to="lab_us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement_B5ED3AA0FAF0319D3050A573A80DCB2B" xlink:type="arc" />
    <link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_8E3E8345B8F6FA471F57759877818C99_verboseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_34799E67FA035702B9DC30BEE215D7FE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other Intangible Assets and Goodwill</link:label>
    <link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_8E3E8345B8F6FA471F57759877818C99_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_34799E67FA035702B9DC30BEE215D7FE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill and Intangible Assets Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_34799E67FA035702B9DC30BEE215D7FE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_34799E67FA035702B9DC30BEE215D7FE" xlink:to="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_34799E67FA035702B9DC30BEE215D7FE" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfGainLossOnInvestmentsTable_BED4506CA79468A9DF10BA674A39F503_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfGainLossOnInvestmentsTable_BED4506CA79468A9DF10BA674A39F503" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Gain (Loss) on Investments [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfGainLossOnInvestmentsTable_BED4506CA79468A9DF10BA674A39F503_label_en-US" xlink:label="lab_us-gaap_ScheduleOfGainLossOnInvestmentsTable_BED4506CA79468A9DF10BA674A39F503" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Gain (Loss) on Investments [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfGainLossOnInvestmentsTable" xlink:label="loc_us-gaap_ScheduleOfGainLossOnInvestmentsTable_BED4506CA79468A9DF10BA674A39F503" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfGainLossOnInvestmentsTable_BED4506CA79468A9DF10BA674A39F503" xlink:to="lab_us-gaap_ScheduleOfGainLossOnInvestmentsTable_BED4506CA79468A9DF10BA674A39F503" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems_77E0E46743D4F0EBE23FBA674A3B8CA0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems_77E0E46743D4F0EBE23FBA674A3B8CA0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of investment securities</link:label>
    <link:label id="lab_us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems_77E0E46743D4F0EBE23FBA674A3B8CA0_label_en-US" xlink:label="lab_us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems_77E0E46743D4F0EBE23FBA674A3B8CA0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) on Investments [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems" xlink:label="loc_us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems_77E0E46743D4F0EBE23FBA674A3B8CA0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems_77E0E46743D4F0EBE23FBA674A3B8CA0" xlink:to="lab_us-gaap_ScheduleOfGainLossOnInvestmentsIncludingMarketableSecuritiesAndInvestmentsHeldAtCostIncomeStatementReportedAmountsSummaryLineItems_77E0E46743D4F0EBE23FBA674A3B8CA0" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasisAbstract_5E9FC5F2E46157FE78D3BA674A3B253B_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasisAbstract_5E9FC5F2E46157FE78D3BA674A3B253B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-sale</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasisAbstract_5E9FC5F2E46157FE78D3BA674A3B253B_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasisAbstract_5E9FC5F2E46157FE78D3BA674A3B253B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Debt Securities, Amortized Cost Basis [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasisAbstract" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasisAbstract_5E9FC5F2E46157FE78D3BA674A3B253B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasisAbstract_5E9FC5F2E46157FE78D3BA674A3B253B" xlink:to="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasisAbstract_5E9FC5F2E46157FE78D3BA674A3B253B" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7E1B4E39B2B5584D5A72BA674A3C347C_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7E1B4E39B2B5584D5A72BA674A3C347C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortized Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7E1B4E39B2B5584D5A72BA674A3C347C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7E1B4E39B2B5584D5A72BA674A3C347C" xlink:to="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7E1B4E39B2B5584D5A72BA674A3C347C" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_85C63AB7AEE252F1601BBA674A3CE11C_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_85C63AB7AEE252F1601BBA674A3CE11C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross Unrealized Gains</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_85C63AB7AEE252F1601BBA674A3CE11C_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_85C63AB7AEE252F1601BBA674A3CE11C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_85C63AB7AEE252F1601BBA674A3CE11C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_85C63AB7AEE252F1601BBA674A3CE11C" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_85C63AB7AEE252F1601BBA674A3CE11C" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_F3F4999B0FC2D13B5E51BA674A3C4622_negatedLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_F3F4999B0FC2D13B5E51BA674A3C4622" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gross Unrealized Losses</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_F3F4999B0FC2D13B5E51BA674A3C4622_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_F3F4999B0FC2D13B5E51BA674A3C4622" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_F3F4999B0FC2D13B5E51BA674A3C4622" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_F3F4999B0FC2D13B5E51BA674A3C4622" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_F3F4999B0FC2D13B5E51BA674A3C4622" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_3995232502BFF4A1E68FBA674A3C3DAB_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_3995232502BFF4A1E68FBA674A3C3DAB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_3995232502BFF4A1E68FBA674A3C3DAB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_3995232502BFF4A1E68FBA674A3C3DAB" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_3995232502BFF4A1E68FBA674A3C3DAB" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesAbstract_FE09637B1F3213B4E014BA674A3CC764_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesAbstract_FE09637B1F3213B4E014BA674A3CC764" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held-to-maturity</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesAbstract_FE09637B1F3213B4E014BA674A3CC764_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesAbstract_FE09637B1F3213B4E014BA674A3CC764" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesAbstract" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAbstract_FE09637B1F3213B4E014BA674A3CC764" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesAbstract_FE09637B1F3213B4E014BA674A3CC764" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesAbstract_FE09637B1F3213B4E014BA674A3CC764" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_553158A85B3FEADC9194BA674A3C2719_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_553158A85B3FEADC9194BA674A3C2719" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross Unrealized Gains</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_553158A85B3FEADC9194BA674A3C2719_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_553158A85B3FEADC9194BA674A3C2719" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Accumulated Unrecognized Holding Gain</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_553158A85B3FEADC9194BA674A3C2719" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_553158A85B3FEADC9194BA674A3C2719" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain_553158A85B3FEADC9194BA674A3C2719" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_F56EB6ABEFE323808E0CBA674A3C1E75_negatedLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_F56EB6ABEFE323808E0CBA674A3C1E75" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gross Unrealized Losses</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_F56EB6ABEFE323808E0CBA674A3C1E75_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_F56EB6ABEFE323808E0CBA674A3C1E75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Accumulated Unrecognized Holding Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_F56EB6ABEFE323808E0CBA674A3C1E75" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_F56EB6ABEFE323808E0CBA674A3C1E75" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss_F56EB6ABEFE323808E0CBA674A3C1E75" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesFairValue_4CA2DB6CE35D0E058883BA674A3C8C01_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesFairValue_4CA2DB6CE35D0E058883BA674A3C8C01" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesFairValue_4CA2DB6CE35D0E058883BA674A3C8C01" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesFairValue_4CA2DB6CE35D0E058883BA674A3C8C01" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesFairValue_4CA2DB6CE35D0E058883BA674A3C8C01" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract_775A06164E39348969F6BA674A3C648B_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract_775A06164E39348969F6BA674A3C648B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract_775A06164E39348969F6BA674A3C648B_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract_775A06164E39348969F6BA674A3C648B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities and Held-to-maturity Securities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract_775A06164E39348969F6BA674A3C648B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract_775A06164E39348969F6BA674A3C648B" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesAndHeldToMaturitySecuritiesAbstract_775A06164E39348969F6BA674A3C648B" xlink:type="arc" />
    <link:label id="lab_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29_totalLabel_en-US" xlink:label="lab_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Amortized Cost</link:label>
    <link:label id="lab_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29_label_en-US" xlink:label="lab_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities, Amortized Cost Basis</link:label>
    <link:label id="lab_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29_documentation_en-US" xlink:label="lab_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This item represents the cost of available-for-sale and held-to-maturity debt securities, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DebtSecuritiesAmortizedCostBasis" xlink:label="loc_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29" xlink:to="lab_gbci_DebtSecuritiesAmortizedCostBasis_3CE064AE24AAE98B87A4BA674A3CDC29" xlink:type="arc" />
    <link:label id="lab_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590_totalLabel_en-US" xlink:label="lab_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Gross Unrealized Gains</link:label>
    <link:label id="lab_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590_label_en-US" xlink:label="lab_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securities, Gross Unrealized Gain Accumulated in Investments</link:label>
    <link:label id="lab_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590_documentation_en-US" xlink:label="lab_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of accumulated unrealized gain before deducting unrealized loss on investments in available-for-sale and held-to-maturity securities impacting investments.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments" xlink:label="loc_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590" xlink:to="lab_gbci_SecuritiesGrossUnrealizedGainAccumulatedinInvestments_7DC4E12B1587BB2D9DFDBA674A3C6590" xlink:type="arc" />
    <link:label id="lab_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D_totalLabel_en-US" xlink:label="lab_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Gross Unrealized Losses</link:label>
    <link:label id="lab_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D_label_en-US" xlink:label="lab_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Securities, Gross Unrealized Loss Accumulated in Investments 1</link:label>
    <link:label id="lab_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D_documentation_en-US" xlink:label="lab_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of accumulated unrealized loss before deducting unrealized gain on investments in available-for-sale and held-to-maturity securities impacting investments.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1" xlink:label="loc_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D" xlink:to="lab_gbci_SecuritiesGrossUnrealizedLossAccumulatedinInvestments1_288A3FCCC6A743C55756BA674A3C168D" xlink:type="arc" />
    <link:label id="lab_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040_totalLabel_en-US" xlink:label="lab_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Fair Value</link:label>
    <link:label id="lab_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040_label_en-US" xlink:label="lab_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities, Fair Value</link:label>
    <link:label id="lab_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040_documentation_en-US" xlink:label="lab_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair value of investments in debt securities classified as available-for sale and held-to-maturity.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DebtSecuritiesFairValue" xlink:label="loc_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040" xlink:to="lab_gbci_DebtSecuritiesFairValue_397F33E5C7BBB1F03EE8BA674A3CA040" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedContributionPlanTable_F4C6DAE8713F5CDA643FA4BB441151B2_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanTable_F4C6DAE8713F5CDA643FA4BB441151B2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan [Table]</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPlanTable_F4C6DAE8713F5CDA643FA4BB441151B2_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanTable_F4C6DAE8713F5CDA643FA4BB441151B2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanTable" xlink:label="loc_us-gaap_DefinedContributionPlanTable_F4C6DAE8713F5CDA643FA4BB441151B2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPlanTable_F4C6DAE8713F5CDA643FA4BB441151B2" xlink:to="lab_us-gaap_DefinedContributionPlanTable_F4C6DAE8713F5CDA643FA4BB441151B2" xlink:type="arc" />
    <link:label id="lab_us-gaap_RetirementPlanNameAxis_8A81DB70C69C50C40EC5A4BB4411194C_terseLabel_en-US" xlink:label="lab_us-gaap_RetirementPlanNameAxis_8A81DB70C69C50C40EC5A4BB4411194C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement Plan Name [Axis]</link:label>
    <link:label id="lab_us-gaap_RetirementPlanNameAxis_8A81DB70C69C50C40EC5A4BB4411194C_label_en-US" xlink:label="lab_us-gaap_RetirementPlanNameAxis_8A81DB70C69C50C40EC5A4BB4411194C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retirement Plan Name [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetirementPlanNameAxis" xlink:label="loc_us-gaap_RetirementPlanNameAxis_8A81DB70C69C50C40EC5A4BB4411194C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetirementPlanNameAxis_8A81DB70C69C50C40EC5A4BB4411194C" xlink:to="lab_us-gaap_RetirementPlanNameAxis_8A81DB70C69C50C40EC5A4BB4411194C" xlink:type="arc" />
    <link:label id="lab_us-gaap_RetirementPlanNameDomain_2DDA6A7A2E4C75114C52A4BB4411AF8F_terseLabel_en-US" xlink:label="lab_us-gaap_RetirementPlanNameDomain_2DDA6A7A2E4C75114C52A4BB4411AF8F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement Plan Name [Domain]</link:label>
    <link:label id="lab_us-gaap_RetirementPlanNameDomain_2DDA6A7A2E4C75114C52A4BB4411AF8F_label_en-US" xlink:label="lab_us-gaap_RetirementPlanNameDomain_2DDA6A7A2E4C75114C52A4BB4411AF8F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retirement Plan Name [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetirementPlanNameDomain" xlink:label="loc_us-gaap_RetirementPlanNameDomain_2DDA6A7A2E4C75114C52A4BB4411AF8F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetirementPlanNameDomain_2DDA6A7A2E4C75114C52A4BB4411AF8F" xlink:to="lab_us-gaap_RetirementPlanNameDomain_2DDA6A7A2E4C75114C52A4BB4411AF8F" xlink:type="arc" />
    <link:label id="lab_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB_terseLabel_en-US" xlink:label="lab_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">401(k) and Profit Sharing Plans</link:label>
    <link:label id="lab_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB_label_en-US" xlink:label="lab_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan [Member]</link:label>
    <link:label id="lab_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB_documentation_en-US" xlink:label="lab_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DefinedContributionPlanMember" xlink:label="loc_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB" xlink:to="lab_gbci_DefinedContributionPlanMember_94EE2EF733C9E60A3674A4BB441150AB" xlink:type="arc" />
    <link:label id="lab_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD_terseLabel_en-US" xlink:label="lab_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred Compensation Plans</link:label>
    <link:label id="lab_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD_label_en-US" xlink:label="lab_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Compensation Plan [Member]</link:label>
    <link:label id="lab_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD_documentation_en-US" xlink:label="lab_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">deferred compensation plan.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DeferredCompensationPlanMember" xlink:label="loc_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD" xlink:to="lab_gbci_DeferredCompensationPlanMember_5122491BB692041D1EAFA4BB441137FD" xlink:type="arc" />
    <link:label id="lab_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F_terseLabel_en-US" xlink:label="lab_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Supplemental Employee Retirement Plan</link:label>
    <link:label id="lab_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F_label_en-US" xlink:label="lab_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Supplemental Employee Retirement Plans [Member]</link:label>
    <link:label id="lab_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F_documentation_en-US" xlink:label="lab_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Supplemental Employee Retirement Plans [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SupplementalEmployeeRetirementPlansMember" xlink:label="loc_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F" xlink:to="lab_gbci_SupplementalEmployeeRetirementPlansMember_A4BFC351AC4FFF905A58A4BB4411CE0F" xlink:type="arc" />
    <link:label id="lab_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C_terseLabel_en-US" xlink:label="lab_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement Plan Employee Age [Axis]</link:label>
    <link:label id="lab_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C_label_en-US" xlink:label="lab_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retirement Plan Employee Age [Axis]</link:label>
    <link:label id="lab_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C_documentation_en-US" xlink:label="lab_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Information about age of employee for determination of maximum annual contributions per employee.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_RetirementPlanEmployeeAgeAxis" xlink:label="loc_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C" xlink:to="lab_gbci_RetirementPlanEmployeeAgeAxis_3C8A011DB756AA9CB24EA5020685182C" xlink:type="arc" />
    <link:label id="lab_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA_terseLabel_en-US" xlink:label="lab_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement Plan Employee Age [Domain]</link:label>
    <link:label id="lab_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA_label_en-US" xlink:label="lab_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retirement Plan Employee Age [Domain]</link:label>
    <link:label id="lab_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA_documentation_en-US" xlink:label="lab_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Domain] for Information about age of employee for determination of maximum annual contributions per employee.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_RetirementPlanEmployeeAgeDomain" xlink:label="loc_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA" xlink:to="lab_gbci_RetirementPlanEmployeeAgeDomain_01B950EE37C0AD86F2FBA502068561CA" xlink:type="arc" />
    <link:label id="lab_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738_terseLabel_en-US" xlink:label="lab_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Age Under 50</link:label>
    <link:label id="lab_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738_label_en-US" xlink:label="lab_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee Age Under 50 [Member]</link:label>
    <link:label id="lab_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738_documentation_en-US" xlink:label="lab_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Employee age of under 50 for determination of maximum annual contributions per employee.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_EmployeeAgeUnder50Member" xlink:label="loc_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738" xlink:to="lab_gbci_EmployeeAgeUnder50Member_EE464F30F2EF9FB95B43A504CA3FD738" xlink:type="arc" />
    <link:label id="lab_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A_terseLabel_en-US" xlink:label="lab_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Age 50 and Over</link:label>
    <link:label id="lab_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A_label_en-US" xlink:label="lab_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee Age 50 and Over [Member]</link:label>
    <link:label id="lab_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A_documentation_en-US" xlink:label="lab_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Employee age of 50 and over for determination of maximum annual contributions per employee.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_EmployeeAge50andOverMember" xlink:label="loc_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A" xlink:to="lab_gbci_EmployeeAge50andOverMember_539EFC0CA86FFD1F18AEA505B16A361A" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedContributionPlanDisclosureLineItems_BB97F89795722C8FF4F6A4BB4411BF36_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanDisclosureLineItems_BB97F89795722C8FF4F6A4BB4411BF36" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee Benefit Plans</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPlanDisclosureLineItems_BB97F89795722C8FF4F6A4BB4411BF36_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanDisclosureLineItems_BB97F89795722C8FF4F6A4BB4411BF36" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan Disclosure [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanDisclosureLineItems" xlink:label="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_BB97F89795722C8FF4F6A4BB4411BF36" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_BB97F89795722C8FF4F6A4BB4411BF36" xlink:to="lab_us-gaap_DefinedContributionPlanDisclosureLineItems_BB97F89795722C8FF4F6A4BB4411BF36" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_839CD3C1E802344A80CCA4BB44112E70_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_839CD3C1E802344A80CCA4BB44112E70" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">401(k) and Profit Sharing Plans</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_839CD3C1E802344A80CCA4BB44112E70_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_839CD3C1E802344A80CCA4BB44112E70" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract" xlink:label="loc_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_839CD3C1E802344A80CCA4BB44112E70" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_839CD3C1E802344A80CCA4BB44112E70" xlink:to="lab_us-gaap_DefinedContributionPensionAndOtherPostretirementPlansDisclosureAbstract_839CD3C1E802344A80CCA4BB44112E70" xlink:type="arc" />
    <link:label id="lab_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81_verboseLabel_en-US" xlink:label="lab_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Minimum age required to be considered eligible for plan</link:label>
    <link:label id="lab_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81_label_en-US" xlink:label="lab_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum Age Required to be Considered Eligible for Plan</link:label>
    <link:label id="lab_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81_documentation_en-US" xlink:label="lab_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Minimum age required to be considered eligible for plan.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan" xlink:label="loc_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81" xlink:to="lab_gbci_MinimumAgeRequiredToBeConsideredEligibleForPlan_D04FFDE72E4F022C1465A4BB4411AA81" xlink:type="arc" />
    <link:label id="lab_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8_terseLabel_en-US" xlink:label="lab_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Period of Employment Required to be Eligible for Plan</link:label>
    <link:label id="lab_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8_label_en-US" xlink:label="lab_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Period of Employment Required to be Eligible for Plan</link:label>
    <link:label id="lab_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8_documentation_en-US" xlink:label="lab_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Period of Employment Required to be Eligible for Plan</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PeriodofEmploymentRequiredtobeEligibleforPlan" xlink:label="loc_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8" xlink:to="lab_gbci_PeriodofEmploymentRequiredtobeEligibleforPlan_80D0BDA85F6F17CFDE23A4BB441166F8" xlink:type="arc" />
    <link:label id="lab_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD_terseLabel_en-US" xlink:label="lab_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum number of quarters required to be eligible for employer discretionary contribution</link:label>
    <link:label id="lab_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD_label_en-US" xlink:label="lab_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum number of quarters required to be eligible for employer discretionary contribution</link:label>
    <link:label id="lab_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD_documentation_en-US" xlink:label="lab_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Minimum number of quarters required to be eligible for employer discretionary contribution of the profit sharing plan.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution" xlink:label="loc_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD" xlink:to="lab_gbci_MinimumNumberOfQuartersRequiredToBeEligibleForEmployerDiscretionaryContribution_5394BFABF9B371D94E39A4BB4421F3DD" xlink:type="arc" />
    <link:label id="lab_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B_verboseLabel_en-US" xlink:label="lab_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Minimum number of hours required to be considered eligible for employer discretionary contribution</link:label>
    <link:label id="lab_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B_label_en-US" xlink:label="lab_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum Number of Hours Required to be Considered Eligible for Employer Discretionary Contribution</link:label>
    <link:label id="lab_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B_documentation_en-US" xlink:label="lab_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Minimum Number of Hours Required to be Considered Eligible for Employer Discretionary Contribution of the Profit Sharing Plan.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution" xlink:label="loc_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B" xlink:to="lab_gbci_MinimumNumberofHoursRequiredtobeConsideredEligibleforEmployerDiscretionaryContribution_7BEB87ACBF631DEEE7ACA4BB4421BF1B" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_EA91CF91769462293BE2A4BB44213ABB_verboseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_EA91CF91769462293BE2A4BB44213ABB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percent rate for non-elective safe harbor contribution as component of profit sharing plan</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_EA91CF91769462293BE2A4BB44213ABB_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_EA91CF91769462293BE2A4BB44213ABB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_EA91CF91769462293BE2A4BB44213ABB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_EA91CF91769462293BE2A4BB44213ABB" xlink:to="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent_EA91CF91769462293BE2A4BB44213ABB" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedContributionPlanCostRecognized_BF4E59FFD38EE17F39FEA4BB44215697_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanCostRecognized_BF4E59FFD38EE17F39FEA4BB44215697" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Profit Sharing Plan Expense</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPlanCostRecognized_BF4E59FFD38EE17F39FEA4BB44215697_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanCostRecognized_BF4E59FFD38EE17F39FEA4BB44215697" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanCostRecognized" xlink:label="loc_us-gaap_DefinedContributionPlanCostRecognized_BF4E59FFD38EE17F39FEA4BB44215697" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPlanCostRecognized_BF4E59FFD38EE17F39FEA4BB44215697" xlink:to="lab_us-gaap_DefinedContributionPlanCostRecognized_BF4E59FFD38EE17F39FEA4BB44215697" xlink:type="arc" />
    <link:label id="lab_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76_terseLabel_en-US" xlink:label="lab_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Age of Employee</link:label>
    <link:label id="lab_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76_label_en-US" xlink:label="lab_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan Age of Employee</link:label>
    <link:label id="lab_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76_documentation_en-US" xlink:label="lab_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Employee age threshold for determination of maximum annual contributions per employee.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DefinedContributionPlanAgeofEmployee" xlink:label="loc_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76" xlink:to="lab_gbci_DefinedContributionPlanAgeofEmployee_F45843CDE18841EC6083A50CBA010E76" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_897202B569682FCC3D6BA4BB44215824_verboseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_897202B569682FCC3D6BA4BB44215824" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maximum percentage of annual compensation allowable for contribution by eligible employees</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_897202B569682FCC3D6BA4BB44215824_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_897202B569682FCC3D6BA4BB44215824" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent" xlink:label="loc_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_897202B569682FCC3D6BA4BB44215824" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_897202B569682FCC3D6BA4BB44215824" xlink:to="lab_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_897202B569682FCC3D6BA4BB44215824" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_55502292E2AD140D961AA4BB44217D92_verboseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_55502292E2AD140D961AA4BB44217D92" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percentage of amount out of first specific percent of employee's contribution matched under plan</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_55502292E2AD140D961AA4BB44217D92_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_55502292E2AD140D961AA4BB44217D92" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Employer Matching Contribution, Percent of Match</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_55502292E2AD140D961AA4BB44217D92" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_55502292E2AD140D961AA4BB44217D92" xlink:to="lab_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_55502292E2AD140D961AA4BB44217D92" xlink:type="arc" />
    <link:label id="lab_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E_verboseLabel_en-US" xlink:label="lab_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percentage of employee's contribution required to determine the matched amount under the plan</link:label>
    <link:label id="lab_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E_label_en-US" xlink:label="lab_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of Employees Contribution Required to Determine Matched Amount Under Plan</link:label>
    <link:label id="lab_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E_documentation_en-US" xlink:label="lab_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage of employee's contribution required to determine matched amount under plan.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan" xlink:label="loc_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E" xlink:to="lab_gbci_PercentageOfEmployeesContributionRequiredToDetermineMatchedAmountUnderPlan_79BE0127015E91859CE3A4BB4421D71E" xlink:type="arc" />
    <link:label id="lab_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3DC6F9DA60DFD69E844A4BB4421994A_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3DC6F9DA60DFD69E844A4BB4421994A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Company's contribution to the plan</link:label>
    <link:label id="lab_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3DC6F9DA60DFD69E844A4BB4421994A_label_en-US" xlink:label="lab_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3DC6F9DA60DFD69E844A4BB4421994A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Employer Discretionary Contribution Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3DC6F9DA60DFD69E844A4BB4421994A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3DC6F9DA60DFD69E844A4BB4421994A" xlink:to="lab_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_C3DC6F9DA60DFD69E844A4BB4421994A" xlink:type="arc" />
    <link:label id="lab_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8_verboseLabel_en-US" xlink:label="lab_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percentage of salary for deferral of cash payments</link:label>
    <link:label id="lab_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8_label_en-US" xlink:label="lab_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of Salary for Deferral of Cash Payments</link:label>
    <link:label id="lab_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8_documentation_en-US" xlink:label="lab_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage of salary for deferral of cash payments.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PercentageOfSalaryForDeferralOfCashPayments" xlink:label="loc_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8" xlink:to="lab_gbci_PercentageOfSalaryForDeferralOfCashPayments_8626E34789435DC138E5A4BB44210DE8" xlink:type="arc" />
    <link:label id="lab_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA_verboseLabel_en-US" xlink:label="lab_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Percentage of bonuses and directors fees for deferral of cash payments</link:label>
    <link:label id="lab_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA_label_en-US" xlink:label="lab_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Percentage of Bonuses and Directors Fees for Deferral of Cash Payments</link:label>
    <link:label id="lab_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA_documentation_en-US" xlink:label="lab_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Percentage of bonuses and directors fees for deferral of cash payments.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments" xlink:label="loc_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA" xlink:to="lab_gbci_PercentageOfBonusesAndDirectorsFeesForDeferralOfCashPayments_6699D743D033186FD1C1A4BB4421DEFA" xlink:type="arc" />
    <link:label id="lab_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F_verboseLabel_en-US" xlink:label="lab_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total amount deferred</link:label>
    <link:label id="lab_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F_label_en-US" xlink:label="lab_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Amount for Compensation Plans</link:label>
    <link:label id="lab_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F_documentation_en-US" xlink:label="lab_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deferred amount for compensation plans.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DeferredAmountForCompensationPlans" xlink:label="loc_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F" xlink:to="lab_gbci_DeferredAmountForCompensationPlans_3DAA4A3C8F85CC2F0FADA4BB4421C91F" xlink:type="arc" />
    <link:label id="lab_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B_verboseLabel_en-US" xlink:label="lab_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Credit earning rate as a percentage of return on equity</link:label>
    <link:label id="lab_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B_label_en-US" xlink:label="lab_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Earning Rate as Percentage of Return on Equity</link:label>
    <link:label id="lab_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B_documentation_en-US" xlink:label="lab_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Credit earning rate as a percentage of return on equity.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CreditEarningRateAsPercentageOfReturnOnEquity" xlink:label="loc_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B" xlink:to="lab_gbci_CreditEarningRateAsPercentageOfReturnOnEquity_F4B6B2407DFC30482054A4BB44210F3B" xlink:type="arc" />
    <link:label id="lab_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D_verboseLabel_en-US" xlink:label="lab_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total earnings for the plan</link:label>
    <link:label id="lab_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D_label_en-US" xlink:label="lab_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Earnings</link:label>
    <link:label id="lab_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D_documentation_en-US" xlink:label="lab_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Defined Contribution Plan, Earnings</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DefinedContributionPlanEarnings" xlink:label="loc_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D" xlink:to="lab_gbci_DefinedContributionPlanEarnings_B0A536B1E36DA1B2D984A4BB4421FC2D" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_74740D3925155C7E4D2CA4BB4421F6C0_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_74740D3925155C7E4D2CA4BB4421F6C0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Liability related to obligations of deferred compensation plans</link:label>
    <link:label id="lab_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_74740D3925155C7E4D2CA4BB4421F6C0_label_en-US" xlink:label="lab_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_74740D3925155C7E4D2CA4BB4421F6C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Compensation Arrangement with Individual, Recorded Liability</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability" xlink:label="loc_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_74740D3925155C7E4D2CA4BB4421F6C0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_74740D3925155C7E4D2CA4BB4421F6C0" xlink:to="lab_us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability_74740D3925155C7E4D2CA4BB4421F6C0" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_0AABF7307296E01F991CA5734F20240D_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_0AABF7307296E01F991CA5734F20240D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_0AABF7307296E01F991CA5734F20240D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_0AABF7307296E01F991CA5734F20240D" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract_0AABF7307296E01F991CA5734F20240D" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6063112CE33FCCB34C5A5734F20B71B_verboseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6063112CE33FCCB34C5A5734F20B71B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Operating Activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6063112CE33FCCB34C5A5734F20B71B_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6063112CE33FCCB34C5A5734F20B71B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6063112CE33FCCB34C5A5734F20B71B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6063112CE33FCCB34C5A5734F20B71B" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_D6063112CE33FCCB34C5A5734F20B71B" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_45619881F5C3CDADD8D1A5734F2062AF_verboseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_45619881F5C3CDADD8D1A5734F2062AF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile net income to net cash provided by operating activities:</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_45619881F5C3CDADD8D1A5734F2062AF_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_45619881F5C3CDADD8D1A5734F2062AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_45619881F5C3CDADD8D1A5734F2062AF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_45619881F5C3CDADD8D1A5734F2062AF" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_45619881F5C3CDADD8D1A5734F2062AF" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProvisionForLoanLeaseAndOtherLosses_9A60A7386E6373A3D284A5734F20E17E_terseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForLoanLeaseAndOtherLosses_9A60A7386E6373A3D284A5734F20E17E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Provision for loan losses</link:label>
    <link:label id="lab_us-gaap_ProvisionForLoanLeaseAndOtherLosses_9A60A7386E6373A3D284A5734F20E17E_label_en-US" xlink:label="lab_us-gaap_ProvisionForLoanLeaseAndOtherLosses_9A60A7386E6373A3D284A5734F20E17E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Provision for Loan, Lease, and Other Losses</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProvisionForLoanLeaseAndOtherLosses" xlink:label="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_9A60A7386E6373A3D284A5734F20E17E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_9A60A7386E6373A3D284A5734F20E17E" xlink:to="lab_us-gaap_ProvisionForLoanLeaseAndOtherLosses_9A60A7386E6373A3D284A5734F20E17E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_56545B1BB7191D3A9A1AA5734F201BB1_negatedLabel_en-US" xlink:label="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_56545B1BB7191D3A9A1AA5734F201BB1" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net amortization of investment securities premiums and discounts</link:label>
    <link:label id="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_56545B1BB7191D3A9A1AA5734F201BB1_label_en-US" xlink:label="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_56545B1BB7191D3A9A1AA5734F201BB1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accretion (Amortization) of Discounts and Premiums, Investments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_56545B1BB7191D3A9A1AA5734F201BB1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_56545B1BB7191D3A9A1AA5734F201BB1" xlink:to="lab_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_56545B1BB7191D3A9A1AA5734F201BB1" xlink:type="arc" />
    <link:label id="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112_negatedTerseLabel_en-US" xlink:label="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net (accretion) amortization of purchase accounting adjustments</link:label>
    <link:label id="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112_label_en-US" xlink:label="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accretion (Amortization) of Discounts and Premiums, Business Combinations</link:label>
    <link:label id="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112_documentation_en-US" xlink:label="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The sum of the periodic adjustments of the differences between business combination asset and liability fair values and carrying values that are charged against earnings.  As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations" xlink:label="loc_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112" xlink:to="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_A3ECEBFF5ED3EF8F88A7A5734F207112" xlink:type="arc" />
    <link:label id="lab_us-gaap_AmortizationOfFinancingCosts_58C4F83E8317A6AD7D8AA5734F20CAE0_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_58C4F83E8317A6AD7D8AA5734F20CAE0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortization of debt modification costs</link:label>
    <link:label id="lab_us-gaap_AmortizationOfFinancingCosts_58C4F83E8317A6AD7D8AA5734F20CAE0_label_en-US" xlink:label="lab_us-gaap_AmortizationOfFinancingCosts_58C4F83E8317A6AD7D8AA5734F20CAE0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortization of Debt Issuance Costs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_58C4F83E8317A6AD7D8AA5734F20CAE0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfFinancingCosts_58C4F83E8317A6AD7D8AA5734F20CAE0" xlink:to="lab_us-gaap_AmortizationOfFinancingCosts_58C4F83E8317A6AD7D8AA5734F20CAE0" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale_4196AA1C8AE0CA80EC57A5734F205F31_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale_4196AA1C8AE0CA80EC57A5734F205F31" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Loans held for sale originated or acquired</link:label>
    <link:label id="lab_us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale_4196AA1C8AE0CA80EC57A5734F205F31_label_en-US" xlink:label="lab_us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale_4196AA1C8AE0CA80EC57A5734F205F31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for Origination and Purchases of Loans Held-for-sale</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale" xlink:label="loc_us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale_4196AA1C8AE0CA80EC57A5734F205F31" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale_4196AA1C8AE0CA80EC57A5734F205F31" xlink:to="lab_us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale_4196AA1C8AE0CA80EC57A5734F205F31" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_78763DE9C669E49DC99DA5734F20B7B8_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_78763DE9C669E49DC99DA5734F20B7B8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales of loans held for sale</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_78763DE9C669E49DC99DA5734F20B7B8_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_78763DE9C669E49DC99DA5734F20B7B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Sale of Mortgage Loans Held-for-sale</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale" xlink:label="loc_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_78763DE9C669E49DC99DA5734F20B7B8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_78763DE9C669E49DC99DA5734F20B7B8" xlink:to="lab_us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale_78763DE9C669E49DC99DA5734F20B7B8" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainLossOnSalesOfLoansNet_C4E65EB357AC34D6AEE2A5734F207C19_negatedLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSalesOfLoansNet_C4E65EB357AC34D6AEE2A5734F207C19" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gain on sale of loans</link:label>
    <link:label id="lab_us-gaap_GainLossOnSalesOfLoansNet_C4E65EB357AC34D6AEE2A5734F207C19_label_en-US" xlink:label="lab_us-gaap_GainLossOnSalesOfLoansNet_C4E65EB357AC34D6AEE2A5734F207C19" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) on Sales of Loans, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSalesOfLoansNet" xlink:label="loc_us-gaap_GainLossOnSalesOfLoansNet_C4E65EB357AC34D6AEE2A5734F207C19" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSalesOfLoansNet_C4E65EB357AC34D6AEE2A5734F207C19" xlink:to="lab_us-gaap_GainLossOnSalesOfLoansNet_C4E65EB357AC34D6AEE2A5734F207C19" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_33DD4C17E70E759F2E6FA5734F2021E6_negatedLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_33DD4C17E70E759F2E6FA5734F2021E6" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Loss (gain) on sale of investments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:label="loc_us-gaap_GainLossOnSaleOfSecuritiesNet_33DD4C17E70E759F2E6FA5734F2021E6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfSecuritiesNet_33DD4C17E70E759F2E6FA5734F2021E6" xlink:to="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_33DD4C17E70E759F2E6FA5734F2021E6" xlink:type="arc" />
    <link:label id="lab_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue_C2AEA7AC90EA3E9E52D6A5734F20AC8F_negatedLabel_en-US" xlink:label="lab_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue_C2AEA7AC90EA3E9E52D6A5734F20AC8F" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Bank-owned life insurance income, net</link:label>
    <link:label id="lab_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue_C2AEA7AC90EA3E9E52D6A5734F20AC8F_label_en-US" xlink:label="lab_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue_C2AEA7AC90EA3E9E52D6A5734F20AC8F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Life Insurance, Corporate or Bank Owned, Change in Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue" xlink:label="loc_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue_C2AEA7AC90EA3E9E52D6A5734F20AC8F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue_C2AEA7AC90EA3E9E52D6A5734F20AC8F" xlink:to="lab_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue_C2AEA7AC90EA3E9E52D6A5734F20AC8F" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensation_127785DBFF124B8D5F01A5734F2009DD_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_127785DBFF124B8D5F01A5734F2009DD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Stock-based compensation expense, net of tax benefits</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensation_127785DBFF124B8D5F01A5734F2009DD_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_127785DBFF124B8D5F01A5734F2009DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_127785DBFF124B8D5F01A5734F2009DD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensation_127785DBFF124B8D5F01A5734F2009DD" xlink:to="lab_us-gaap_ShareBasedCompensation_127785DBFF124B8D5F01A5734F2009DD" xlink:type="arc" />
    <link:label id="lab_us-gaap_DepreciationNonproduction_AE99EF0BF45FB6ED3CB8A5734F20E658_verboseLabel_en-US" xlink:label="lab_us-gaap_DepreciationNonproduction_AE99EF0BF45FB6ED3CB8A5734F20E658" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Depreciation of premises and equipment</link:label>
    <link:label id="lab_us-gaap_DepreciationNonproduction_AE99EF0BF45FB6ED3CB8A5734F20E658_label_en-US" xlink:label="lab_us-gaap_DepreciationNonproduction_AE99EF0BF45FB6ED3CB8A5734F20E658" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation, Nonproduction</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationNonproduction" xlink:label="loc_us-gaap_DepreciationNonproduction_AE99EF0BF45FB6ED3CB8A5734F20E658" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationNonproduction_AE99EF0BF45FB6ED3CB8A5734F20E658" xlink:to="lab_us-gaap_DepreciationNonproduction_AE99EF0BF45FB6ED3CB8A5734F20E658" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainsLossesOnSalesOfOtherRealEstate_DA20EF4B644D7971A1CBA5734F20D9E3_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_GainsLossesOnSalesOfOtherRealEstate_DA20EF4B644D7971A1CBA5734F20D9E3" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">(Gain) loss on sale of other real estate owned and write-downs, net</link:label>
    <link:label id="lab_us-gaap_GainsLossesOnSalesOfOtherRealEstate_DA20EF4B644D7971A1CBA5734F20D9E3_label_en-US" xlink:label="lab_us-gaap_GainsLossesOnSalesOfOtherRealEstate_DA20EF4B644D7971A1CBA5734F20D9E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) on Sales of Other Real Estate</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainsLossesOnSalesOfOtherRealEstate" xlink:label="loc_us-gaap_GainsLossesOnSalesOfOtherRealEstate_DA20EF4B644D7971A1CBA5734F20D9E3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainsLossesOnSalesOfOtherRealEstate_DA20EF4B644D7971A1CBA5734F20D9E3" xlink:to="lab_us-gaap_GainsLossesOnSalesOfOtherRealEstate_DA20EF4B644D7971A1CBA5734F20D9E3" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_E7AD1161A51727B697B0A5734F20D80E_verboseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_E7AD1161A51727B697B0A5734F20D80E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax expense (benefit)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_E7AD1161A51727B697B0A5734F20D80E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_E7AD1161A51727B697B0A5734F20D80E" xlink:to="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_E7AD1161A51727B697B0A5734F20D80E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_FD15CD97EFC3224A71AFA5734F209D08_verboseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_FD15CD97EFC3224A71AFA5734F209D08" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Core deposit intangible amortization</link:label>
    <link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_FD15CD97EFC3224A71AFA5734F209D08_label_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_FD15CD97EFC3224A71AFA5734F209D08" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amortization of Intangible Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_FD15CD97EFC3224A71AFA5734F209D08" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfIntangibleAssets_FD15CD97EFC3224A71AFA5734F209D08" xlink:to="lab_us-gaap_AmortizationOfIntangibleAssets_FD15CD97EFC3224A71AFA5734F209D08" xlink:type="arc" />
    <link:label id="lab_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC_terseLabel_en-US" xlink:label="lab_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortization of investments in variable interest entities</link:label>
    <link:label id="lab_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC_label_en-US" xlink:label="lab_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entities Investment Amortization</link:label>
    <link:label id="lab_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC_documentation_en-US" xlink:label="lab_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of amortization expense of investment in variable interest entities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_VariableInterestEntitiesInvestmentAmortization" xlink:label="loc_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC" xlink:to="lab_gbci_VariableInterestEntitiesInvestmentAmortization_24948C2680D631E2F612A5734F20E5DC" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_FACA7981D436998B2A2BA5734F201EB4_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_FACA7981D436998B2A2BA5734F201EB4" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net decrease (increase) in accrued interest receivable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_FACA7981D436998B2A2BA5734F201EB4_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_FACA7981D436998B2A2BA5734F201EB4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Accrued Interest Receivable, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_FACA7981D436998B2A2BA5734F201EB4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_FACA7981D436998B2A2BA5734F201EB4" xlink:to="lab_us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet_FACA7981D436998B2A2BA5734F201EB4" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_BB95BD0AEF6C3A6013DCA5734F203860_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_BB95BD0AEF6C3A6013DCA5734F203860" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net decrease in other assets</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_BB95BD0AEF6C3A6013DCA5734F203860_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_BB95BD0AEF6C3A6013DCA5734F203860" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Other Operating Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_BB95BD0AEF6C3A6013DCA5734F203860" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingAssets_BB95BD0AEF6C3A6013DCA5734F203860" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingAssets_BB95BD0AEF6C3A6013DCA5734F203860" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_0C920EECDAE8321DA41EA5734F2014E2_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_0C920EECDAE8321DA41EA5734F2014E2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net (decrease) increase in accrued interest payable</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_0C920EECDAE8321DA41EA5734F2014E2_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_0C920EECDAE8321DA41EA5734F2014E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Interest Payable, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:label="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_0C920EECDAE8321DA41EA5734F2014E2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInterestPayableNet_0C920EECDAE8321DA41EA5734F2014E2" xlink:to="lab_us-gaap_IncreaseDecreaseInInterestPayableNet_0C920EECDAE8321DA41EA5734F2014E2" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_1084BFC7F37F4DDC71BCA5734F206F10_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_1084BFC7F37F4DDC71BCA5734F206F10" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net (decrease) increase in other liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_1084BFC7F37F4DDC71BCA5734F206F10_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_1084BFC7F37F4DDC71BCA5734F206F10" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Other Operating Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingLiabilities" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_1084BFC7F37F4DDC71BCA5734F206F10" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_1084BFC7F37F4DDC71BCA5734F206F10" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingLiabilities_1084BFC7F37F4DDC71BCA5734F206F10" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_DB1AA28EED11146CF430A5734F204456_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_DB1AA28EED11146CF430A5734F204456" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_DB1AA28EED11146CF430A5734F204456_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_DB1AA28EED11146CF430A5734F204456" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_DB1AA28EED11146CF430A5734F204456" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_DB1AA28EED11146CF430A5734F204456" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_DB1AA28EED11146CF430A5734F204456" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_5322BE03D4C2E7DAFBB9A5734F200DBA_verboseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_5322BE03D4C2E7DAFBB9A5734F200DBA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investing Activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_5322BE03D4C2E7DAFBB9A5734F200DBA_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_5322BE03D4C2E7DAFBB9A5734F200DBA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_5322BE03D4C2E7DAFBB9A5734F200DBA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_5322BE03D4C2E7DAFBB9A5734F200DBA" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_5322BE03D4C2E7DAFBB9A5734F200DBA" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_50BF95671F00909F5718A5734F205631_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_50BF95671F00909F5718A5734F205631" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Sales of available-for-sale securities</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_50BF95671F00909F5718A5734F205631_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_50BF95671F00909F5718A5734F205631" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Sale of Available-for-sale Securities, Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_50BF95671F00909F5718A5734F205631" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_50BF95671F00909F5718A5734F205631" xlink:to="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_50BF95671F00909F5718A5734F205631" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_3EA017CD2C60EA107C36A5734F20B559_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_3EA017CD2C60EA107C36A5734F20B559" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturities, prepayments and calls of available-for-sale securities</link:label>
    <link:label id="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_3EA017CD2C60EA107C36A5734F20B559_label_en-US" xlink:label="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_3EA017CD2C60EA107C36A5734F20B559" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_3EA017CD2C60EA107C36A5734F20B559" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_3EA017CD2C60EA107C36A5734F20B559" xlink:to="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_3EA017CD2C60EA107C36A5734F20B559" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_C9EEDD4D9CB1CE1FEF11A5734F20968D_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_C9EEDD4D9CB1CE1FEF11A5734F20968D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchases of available-for-sale securities</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_C9EEDD4D9CB1CE1FEF11A5734F20968D_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_C9EEDD4D9CB1CE1FEF11A5734F20968D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Available-for-sale Securities, Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt" xlink:label="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_C9EEDD4D9CB1CE1FEF11A5734F20968D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_C9EEDD4D9CB1CE1FEF11A5734F20968D" xlink:to="lab_us-gaap_PaymentsToAcquireAvailableForSaleSecuritiesDebt_C9EEDD4D9CB1CE1FEF11A5734F20968D" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_52E4E065C6D5CC8E4E03A5734F20F7B0_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_52E4E065C6D5CC8E4E03A5734F20F7B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturities, prepayments and calls of held-to-maturity securities</link:label>
    <link:label id="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_52E4E065C6D5CC8E4E03A5734F20F7B0_label_en-US" xlink:label="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_52E4E065C6D5CC8E4E03A5734F20F7B0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_52E4E065C6D5CC8E4E03A5734F20F7B0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_52E4E065C6D5CC8E4E03A5734F20F7B0" xlink:to="lab_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_52E4E065C6D5CC8E4E03A5734F20F7B0" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_AF813C8DE298A5576039A5734F202704_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_AF813C8DE298A5576039A5734F202704" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Purchases of held-to-maturity securities</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_AF813C8DE298A5576039A5734F202704_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_AF813C8DE298A5576039A5734F202704" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Held-to-maturity Securities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireHeldToMaturitySecurities" xlink:label="loc_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_AF813C8DE298A5576039A5734F202704" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_AF813C8DE298A5576039A5734F202704" xlink:to="lab_us-gaap_PaymentsToAcquireHeldToMaturitySecurities_AF813C8DE298A5576039A5734F202704" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1_F71E26983C0CCF111383A5734F20921F_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1_F71E26983C0CCF111383A5734F20921F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Principal collected on loans</link:label>
    <link:label id="lab_us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1_F71E26983C0CCF111383A5734F20921F_label_en-US" xlink:label="lab_us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1_F71E26983C0CCF111383A5734F20921F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Loan and Lease Originations and Principal Collections</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1" xlink:label="loc_us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1_F71E26983C0CCF111383A5734F20921F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1_F71E26983C0CCF111383A5734F20921F" xlink:to="lab_us-gaap_ProceedsFromLoanAndLeaseOriginationsAndPrincipalCollections1_F71E26983C0CCF111383A5734F20921F" xlink:type="arc" />
    <link:label id="lab_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0_negatedLabel_en-US" xlink:label="lab_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Loans originated or acquired</link:label>
    <link:label id="lab_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0_label_en-US" xlink:label="lab_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for Loans Originated or Acquired</link:label>
    <link:label id="lab_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0_documentation_en-US" xlink:label="lab_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payments for loans originated or acquired.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PaymentsForLoansOriginatedOrAcquired" xlink:label="loc_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0" xlink:to="lab_gbci_PaymentsForLoansOriginatedOrAcquired_C81D8CE1FFF51A4760DBA5734F2088E0" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsForProceedsFromProductiveAssets_DE2305444FA688FC70B4A5734F201F2C_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromProductiveAssets_DE2305444FA688FC70B4A5734F201F2C" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net additions to premises and equipment</link:label>
    <link:label id="lab_us-gaap_PaymentsForProceedsFromProductiveAssets_DE2305444FA688FC70B4A5734F201F2C_label_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromProductiveAssets_DE2305444FA688FC70B4A5734F201F2C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for (Proceeds from) Productive Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForProceedsFromProductiveAssets" xlink:label="loc_us-gaap_PaymentsForProceedsFromProductiveAssets_DE2305444FA688FC70B4A5734F201F2C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForProceedsFromProductiveAssets_DE2305444FA688FC70B4A5734F201F2C" xlink:to="lab_us-gaap_PaymentsForProceedsFromProductiveAssets_DE2305444FA688FC70B4A5734F201F2C" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans_E5BC6327A3DAF475A0EFA5734F2078D8_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans_E5BC6327A3DAF475A0EFA5734F2078D8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale of other real estate owned</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans_E5BC6327A3DAF475A0EFA5734F2078D8_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans_E5BC6327A3DAF475A0EFA5734F2078D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Sale of Wholly Owned Real Estate and Real Estate Acquired in Settlement of Loans</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans" xlink:label="loc_us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans_E5BC6327A3DAF475A0EFA5734F2078D8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans_E5BC6327A3DAF475A0EFA5734F2078D8" xlink:to="lab_us-gaap_ProceedsFromSaleOfWhollyOwnedRealEstateAndRealEstateAcquiredInSettlementOfLoans_E5BC6327A3DAF475A0EFA5734F2078D8" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromSaleOfFederalHomeLoanBankStock_C7076B3FE344B8C4FBBDA5734F2071FD_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfFederalHomeLoanBankStock_C7076B3FE344B8C4FBBDA5734F2071FD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale of non-marketable equity securities</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfFederalHomeLoanBankStock_C7076B3FE344B8C4FBBDA5734F2071FD_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfFederalHomeLoanBankStock_C7076B3FE344B8C4FBBDA5734F2071FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Sale of Federal Home Loan Bank Stock</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromSaleOfFederalHomeLoanBankStock" xlink:label="loc_us-gaap_ProceedsFromSaleOfFederalHomeLoanBankStock_C7076B3FE344B8C4FBBDA5734F2071FD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleOfFederalHomeLoanBankStock_C7076B3FE344B8C4FBBDA5734F2071FD" xlink:to="lab_us-gaap_ProceedsFromSaleOfFederalHomeLoanBankStock_C7076B3FE344B8C4FBBDA5734F2071FD" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireFederalHomeLoanBankStock_DB7EB720AC71B80F01A7A5734F205315_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireFederalHomeLoanBankStock_DB7EB720AC71B80F01A7A5734F205315" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Purchases of non-marketable equity securities</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireFederalHomeLoanBankStock_DB7EB720AC71B80F01A7A5734F205315_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireFederalHomeLoanBankStock_DB7EB720AC71B80F01A7A5734F205315" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Federal Home Loan Bank Stock</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireFederalHomeLoanBankStock" xlink:label="loc_us-gaap_PaymentsToAcquireFederalHomeLoanBankStock_DB7EB720AC71B80F01A7A5734F205315" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireFederalHomeLoanBankStock_DB7EB720AC71B80F01A7A5734F205315" xlink:to="lab_us-gaap_PaymentsToAcquireFederalHomeLoanBankStock_DB7EB720AC71B80F01A7A5734F205315" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromLifeInsurancePolicies_696748882DFCEEA6BBBDA5734F20619F_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromLifeInsurancePolicies_696748882DFCEEA6BBBDA5734F20619F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from bank-owned life insurance</link:label>
    <link:label id="lab_us-gaap_ProceedsFromLifeInsurancePolicies_696748882DFCEEA6BBBDA5734F20619F_label_en-US" xlink:label="lab_us-gaap_ProceedsFromLifeInsurancePolicies_696748882DFCEEA6BBBDA5734F20619F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Life Insurance Policy</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromLifeInsurancePolicies" xlink:label="loc_us-gaap_ProceedsFromLifeInsurancePolicies_696748882DFCEEA6BBBDA5734F20619F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromLifeInsurancePolicies_696748882DFCEEA6BBBDA5734F20619F" xlink:to="lab_us-gaap_ProceedsFromLifeInsurancePolicies_696748882DFCEEA6BBBDA5734F20619F" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireOtherInvestments_558F0961721272A07E2AA5734F20C33B_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireOtherInvestments_558F0961721272A07E2AA5734F20C33B" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Investments in variable interest entities</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireOtherInvestments_558F0961721272A07E2AA5734F20C33B_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireOtherInvestments_558F0961721272A07E2AA5734F20C33B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Other Investments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireOtherInvestments" xlink:label="loc_us-gaap_PaymentsToAcquireOtherInvestments_558F0961721272A07E2AA5734F20C33B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireOtherInvestments_558F0961721272A07E2AA5734F20C33B" xlink:to="lab_us-gaap_PaymentsToAcquireOtherInvestments_558F0961721272A07E2AA5734F20C33B" xlink:type="arc" />
    <link:label id="lab_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8_terseLabel_en-US" xlink:label="lab_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net cash (paid) received in acquisitions</link:label>
    <link:label id="lab_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8_label_en-US" xlink:label="lab_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Received Paid for Acquisition of Banks</link:label>
    <link:label id="lab_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8_documentation_en-US" xlink:label="lab_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Net cash received (paid) for acquisition of banks.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_NetCashReceivedPaidForAcquisitionOfBanks" xlink:label="loc_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8" xlink:to="lab_gbci_NetCashReceivedPaidForAcquisitionOfBanks_7918A8DE8684AFA4C233A5734F2020B8" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C3FD01E165268C0B0B6CA5734F20D1CC_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C3FD01E165268C0B0B6CA5734F20D1CC" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by (used in) investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C3FD01E165268C0B0B6CA5734F20D1CC_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C3FD01E165268C0B0B6CA5734F20D1CC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C3FD01E165268C0B0B6CA5734F20D1CC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C3FD01E165268C0B0B6CA5734F20D1CC" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C3FD01E165268C0B0B6CA5734F20D1CC" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_77223A0594BDD123B203A5734F20D04A_verboseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_77223A0594BDD123B203A5734F20D04A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Financing Activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_77223A0594BDD123B203A5734F20D04A_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_77223A0594BDD123B203A5734F20D04A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_77223A0594BDD123B203A5734F20D04A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_77223A0594BDD123B203A5734F20D04A" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_77223A0594BDD123B203A5734F20D04A" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInDeposits_25C73AE370C62B1541B0A5734F202DF8_verboseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInDeposits_25C73AE370C62B1541B0A5734F202DF8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net (decrease) increase in deposits</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInDeposits_25C73AE370C62B1541B0A5734F202DF8_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInDeposits_25C73AE370C62B1541B0A5734F202DF8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Deposits</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInDeposits" xlink:label="loc_us-gaap_IncreaseDecreaseInDeposits_25C73AE370C62B1541B0A5734F202DF8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInDeposits_25C73AE370C62B1541B0A5734F202DF8" xlink:to="lab_us-gaap_IncreaseDecreaseInDeposits_25C73AE370C62B1541B0A5734F202DF8" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_58DB7A4193EE06AA4237A5734F203C32_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_58DB7A4193EE06AA4237A5734F203C32" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net (decrease) increase in securities sold under agreements to repurchase</link:label>
    <link:label id="lab_us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_58DB7A4193EE06AA4237A5734F203C32_label_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_58DB7A4193EE06AA4237A5734F203C32" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase" xlink:label="loc_us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_58DB7A4193EE06AA4237A5734F203C32" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_58DB7A4193EE06AA4237A5734F203C32" xlink:to="lab_us-gaap_ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase_58DB7A4193EE06AA4237A5734F203C32" xlink:type="arc" />
    <link:label id="lab_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C_verboseLabel_en-US" xlink:label="lab_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net increase (decrease) in short-term Federal Home Loan Bank advances</link:label>
    <link:label id="lab_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C_label_en-US" xlink:label="lab_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Payments for Short Term Federal Home Loan Bank Advances</link:label>
    <link:label id="lab_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C_documentation_en-US" xlink:label="lab_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Proceeds from (Payments for) Federal Home Loan Bank Borrowings with Maturities Less Than 90 Days.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances" xlink:label="loc_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C" xlink:to="lab_gbci_ProceedsfromPaymentsforShortTermFederalHomeLoanBankAdvances_ED2AC45D1244331BD536A5734F207E1C" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromFederalHomeLoanBankBorrowings_9D827052E475B61369C2A5734F20C961_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromFederalHomeLoanBankBorrowings_9D827052E475B61369C2A5734F20C961" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from long-term Federal Home Loan Bank advances</link:label>
    <link:label id="lab_us-gaap_ProceedsFromFederalHomeLoanBankBorrowings_9D827052E475B61369C2A5734F20C961_label_en-US" xlink:label="lab_us-gaap_ProceedsFromFederalHomeLoanBankBorrowings_9D827052E475B61369C2A5734F20C961" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Federal Home Loan Bank Borrowings</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromFederalHomeLoanBankBorrowings" xlink:label="loc_us-gaap_ProceedsFromFederalHomeLoanBankBorrowings_9D827052E475B61369C2A5734F20C961" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromFederalHomeLoanBankBorrowings_9D827052E475B61369C2A5734F20C961" xlink:to="lab_us-gaap_ProceedsFromFederalHomeLoanBankBorrowings_9D827052E475B61369C2A5734F20C961" xlink:type="arc" />
    <link:label id="lab_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings_9D98CDB32121715B6450A5734F20B7E3_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings_9D98CDB32121715B6450A5734F20B7E3" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Repayments of long-term Federal Home Loan Bank advances</link:label>
    <link:label id="lab_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings_9D98CDB32121715B6450A5734F20B7E3_label_en-US" xlink:label="lab_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings_9D98CDB32121715B6450A5734F20B7E3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Repayments of Federal Home Loan Bank Borrowings</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings" xlink:label="loc_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings_9D98CDB32121715B6450A5734F20B7E3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings_9D98CDB32121715B6450A5734F20B7E3" xlink:to="lab_us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings_9D98CDB32121715B6450A5734F20B7E3" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromRepaymentsOfOtherDebt_13991FBCEE178E9A8DA0A5734F204544_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfOtherDebt_13991FBCEE178E9A8DA0A5734F204544" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net increase (decrease) in other borrowed funds</link:label>
    <link:label id="lab_us-gaap_ProceedsFromRepaymentsOfOtherDebt_13991FBCEE178E9A8DA0A5734F204544_label_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfOtherDebt_13991FBCEE178E9A8DA0A5734F204544" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from (Repayments of) Other Debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfOtherDebt" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfOtherDebt_13991FBCEE178E9A8DA0A5734F204544" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromRepaymentsOfOtherDebt_13991FBCEE178E9A8DA0A5734F204544" xlink:to="lab_us-gaap_ProceedsFromRepaymentsOfOtherDebt_13991FBCEE178E9A8DA0A5734F204544" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsOfDividendsCommonStock_DED5A0ABC9E668D5F835A5734F204AEB_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDividendsCommonStock_DED5A0ABC9E668D5F835A5734F204AEB" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cash dividends paid</link:label>
    <link:label id="lab_us-gaap_PaymentsOfDividendsCommonStock_DED5A0ABC9E668D5F835A5734F204AEB_label_en-US" xlink:label="lab_us-gaap_PaymentsOfDividendsCommonStock_DED5A0ABC9E668D5F835A5734F204AEB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments of Ordinary Dividends, Common Stock</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_DED5A0ABC9E668D5F835A5734F204AEB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfDividendsCommonStock_DED5A0ABC9E668D5F835A5734F204AEB" xlink:to="lab_us-gaap_PaymentsOfDividendsCommonStock_DED5A0ABC9E668D5F835A5734F204AEB" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9E265B0EEDFF0998C7FCA5734F2053BC_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9E265B0EEDFF0998C7FCA5734F2053BC" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Tax withholding payments for stock-based compensation</link:label>
    <link:label id="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9E265B0EEDFF0998C7FCA5734F2053BC_label_en-US" xlink:label="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9E265B0EEDFF0998C7FCA5734F2053BC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments Related to Tax Withholding for Share-based Compensation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9E265B0EEDFF0998C7FCA5734F2053BC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9E265B0EEDFF0998C7FCA5734F2053BC" xlink:to="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9E265B0EEDFF0998C7FCA5734F2053BC" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_12AF14F84ED0E6A43929A5734F20BFBA_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_12AF14F84ED0E6A43929A5734F20BFBA" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash (used in) provided by financing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_12AF14F84ED0E6A43929A5734F20BFBA_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_12AF14F84ED0E6A43929A5734F20BFBA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_12AF14F84ED0E6A43929A5734F20BFBA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_12AF14F84ED0E6A43929A5734F20BFBA" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_12AF14F84ED0E6A43929A5734F20BFBA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_62E484D88ABC094E4963A5734F20BABD_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_62E484D88ABC094E4963A5734F20BABD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net increase (decrease) in cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_62E484D88ABC094E4963A5734F20BABD_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_62E484D88ABC094E4963A5734F20BABD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, Period Increase (Decrease)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_62E484D88ABC094E4963A5734F20BABD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_62E484D88ABC094E4963A5734F20BABD" xlink:to="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_62E484D88ABC094E4963A5734F20BABD" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_97BC099D7FF674BE8589A5734F2089A5_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_97BC099D7FF674BE8589A5734F2089A5" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at beginning of period</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_97BC099D7FF674BE8589A5734F2089A5_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_97BC099D7FF674BE8589A5734F2089A5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_97BC099D7FF674BE8589A5734F2089A5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_97BC099D7FF674BE8589A5734F2089A5" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_97BC099D7FF674BE8589A5734F2089A5" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_2443B329C17458E1FD77A5734F2035FD_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_2443B329C17458E1FD77A5734F2035FD" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at end of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_2443B329C17458E1FD77A5734F2035FD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_2443B329C17458E1FD77A5734F2035FD" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_2443B329C17458E1FD77A5734F2035FD" xlink:type="arc" />
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_0209766BEC8C1B073B2AA5734F20FED6_verboseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_0209766BEC8C1B073B2AA5734F20FED6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Supplemental Disclosure of Cash Flow Information</link:label>
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_0209766BEC8C1B073B2AA5734F20FED6_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract_0209766BEC8C1B073B2AA5734F20FED6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Supplemental Cash Flow Information [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SupplementalCashFlowInformationAbstract" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_0209766BEC8C1B073B2AA5734F20FED6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_0209766BEC8C1B073B2AA5734F20FED6" xlink:to="lab_us-gaap_SupplementalCashFlowInformationAbstract_0209766BEC8C1B073B2AA5734F20FED6" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestPaid_5C7FF3E596705B69B00DA5734F204577_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestPaid_5C7FF3E596705B69B00DA5734F204577" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash paid during the period for interest</link:label>
    <link:label id="lab_us-gaap_InterestPaid_5C7FF3E596705B69B00DA5734F204577_label_en-US" xlink:label="lab_us-gaap_InterestPaid_5C7FF3E596705B69B00DA5734F204577" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Paid</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestPaid" xlink:label="loc_us-gaap_InterestPaid_5C7FF3E596705B69B00DA5734F204577" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestPaid_5C7FF3E596705B69B00DA5734F204577" xlink:to="lab_us-gaap_InterestPaid_5C7FF3E596705B69B00DA5734F204577" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxesPaid_8EC03D4E0CBF58CEB00FA5734F20F965_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaid_8EC03D4E0CBF58CEB00FA5734F20F965" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash paid during the period for income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxesPaid_8EC03D4E0CBF58CEB00FA5734F20F965_label_en-US" xlink:label="lab_us-gaap_IncomeTaxesPaid_8EC03D4E0CBF58CEB00FA5734F20F965" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Taxes Paid</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="loc_us-gaap_IncomeTaxesPaid_8EC03D4E0CBF58CEB00FA5734F20F965" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxesPaid_8EC03D4E0CBF58CEB00FA5734F20F965" xlink:to="lab_us-gaap_IncomeTaxesPaid_8EC03D4E0CBF58CEB00FA5734F20F965" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_0D6B6515498AB431F258A5734F20598A_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_0D6B6515498AB431F258A5734F20598A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Supplemental Disclosure of Non-Cash Investing Activities</link:label>
    <link:label id="lab_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_0D6B6515498AB431F258A5734F20598A_label_en-US" xlink:label="lab_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_0D6B6515498AB431F258A5734F20598A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Noncash Investing and Financing Items [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract" xlink:label="loc_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_0D6B6515498AB431F258A5734F20598A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_0D6B6515498AB431F258A5734F20598A" xlink:to="lab_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_0D6B6515498AB431F258A5734F20598A" xlink:type="arc" />
    <link:label id="lab_us-gaap_TransferOfOtherRealEstate_74D5F1496A5410579ECDA5734F2039B8_terseLabel_en-US" xlink:label="lab_us-gaap_TransferOfOtherRealEstate_74D5F1496A5410579ECDA5734F2039B8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sale and refinancing of other real estate owned</link:label>
    <link:label id="lab_us-gaap_TransferOfOtherRealEstate_74D5F1496A5410579ECDA5734F2039B8_label_en-US" xlink:label="lab_us-gaap_TransferOfOtherRealEstate_74D5F1496A5410579ECDA5734F2039B8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Real Estate Owned, Transfer from Real Estate Owned</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransferOfOtherRealEstate" xlink:label="loc_us-gaap_TransferOfOtherRealEstate_74D5F1496A5410579ECDA5734F2039B8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransferOfOtherRealEstate_74D5F1496A5410579ECDA5734F2039B8" xlink:to="lab_us-gaap_TransferOfOtherRealEstate_74D5F1496A5410579ECDA5734F2039B8" xlink:type="arc" />
    <link:label id="lab_us-gaap_TransferToOtherRealEstate_D030151C4DE8BAA312ACA5734F202416_terseLabel_en-US" xlink:label="lab_us-gaap_TransferToOtherRealEstate_D030151C4DE8BAA312ACA5734F202416" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Transfer of loans to other real estate owned</link:label>
    <link:label id="lab_us-gaap_TransferToOtherRealEstate_D030151C4DE8BAA312ACA5734F202416_label_en-US" xlink:label="lab_us-gaap_TransferToOtherRealEstate_D030151C4DE8BAA312ACA5734F202416" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Real Estate Owned, Transfer to Real Estate Owned</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransferToOtherRealEstate" xlink:label="loc_us-gaap_TransferToOtherRealEstate_D030151C4DE8BAA312ACA5734F202416" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransferToOtherRealEstate_D030151C4DE8BAA312ACA5734F202416" xlink:to="lab_us-gaap_TransferToOtherRealEstate_D030151C4DE8BAA312ACA5734F202416" xlink:type="arc" />
    <link:label id="lab_us-gaap_DividendsPayableCurrentAndNoncurrent_80CB64DF83E2248ABA28A5734F20DCA2_terseLabel_en-US" xlink:label="lab_us-gaap_DividendsPayableCurrentAndNoncurrent_80CB64DF83E2248ABA28A5734F20DCA2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Dividends declared but not paid</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DividendsPayableCurrentAndNoncurrent" xlink:label="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_80CB64DF83E2248ABA28A5734F20DCA2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsPayableCurrentAndNoncurrent_80CB64DF83E2248ABA28A5734F20DCA2" xlink:to="lab_us-gaap_DividendsPayableCurrentAndNoncurrent_80CB64DF83E2248ABA28A5734F20DCA2" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockIssued1_B6CE77CEA12E31BD994BA5734F20EC8F_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssued1_B6CE77CEA12E31BD994BA5734F20EC8F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of common stock shares issued</link:label>
    <link:label id="lab_us-gaap_StockIssued1_B6CE77CEA12E31BD994BA5734F20EC8F_label_en-US" xlink:label="lab_us-gaap_StockIssued1_B6CE77CEA12E31BD994BA5734F20EC8F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock Issued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockIssued1" xlink:label="loc_us-gaap_StockIssued1_B6CE77CEA12E31BD994BA5734F20EC8F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssued1_B6CE77CEA12E31BD994BA5734F20EC8F" xlink:to="lab_us-gaap_StockIssued1_B6CE77CEA12E31BD994BA5734F20EC8F" xlink:type="arc" />
    <link:label id="lab_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477_terseLabel_en-US" xlink:label="lab_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash consideration for outstanding shares</link:label>
    <link:label id="lab_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477_label_en-US" xlink:label="lab_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Consideration for Outstanding Shares</link:label>
    <link:label id="lab_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477_documentation_en-US" xlink:label="lab_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Cash Consideration for Outstanding Shares</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CashConsiderationforOutstandingShares" xlink:label="loc_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477" xlink:to="lab_gbci_CashConsiderationforOutstandingShares_83CC523B98FE6BFB2F76A5734F20B477" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueOfAssetsAcquired_0D2C27126592FBB05572A5734F2055C5_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueOfAssetsAcquired_0D2C27126592FBB05572A5734F2055C5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of assets acquired</link:label>
    <link:label id="lab_us-gaap_FairValueOfAssetsAcquired_0D2C27126592FBB05572A5734F2055C5_label_en-US" xlink:label="lab_us-gaap_FairValueOfAssetsAcquired_0D2C27126592FBB05572A5734F2055C5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value of Assets Acquired</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueOfAssetsAcquired" xlink:label="loc_us-gaap_FairValueOfAssetsAcquired_0D2C27126592FBB05572A5734F2055C5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueOfAssetsAcquired_0D2C27126592FBB05572A5734F2055C5" xlink:to="lab_us-gaap_FairValueOfAssetsAcquired_0D2C27126592FBB05572A5734F2055C5" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesAssumed1_22A609F0858B38173981A5734F20F679_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAssumed1_22A609F0858B38173981A5734F20F679" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities assumed</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAssumed1_22A609F0858B38173981A5734F20F679_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAssumed1_22A609F0858B38173981A5734F20F679" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Liabilities Assumed</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAssumed1" xlink:label="loc_us-gaap_LiabilitiesAssumed1_22A609F0858B38173981A5734F20F679" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAssumed1_22A609F0858B38173981A5734F20F679" xlink:to="lab_us-gaap_LiabilitiesAssumed1_22A609F0858B38173981A5734F20F679" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventsAbstract_C75443FDDE1CA69DB44FAF8202030A95_label_en-US" xlink:label="lab_us-gaap_SubsequentEventsAbstract_C75443FDDE1CA69DB44FAF8202030A95" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Events [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsAbstract" xlink:label="loc_us-gaap_SubsequentEventsAbstract_C75443FDDE1CA69DB44FAF8202030A95" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventsAbstract_C75443FDDE1CA69DB44FAF8202030A95" xlink:to="lab_us-gaap_SubsequentEventsAbstract_C75443FDDE1CA69DB44FAF8202030A95" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventTable_0A1F139AE618A0F50F5BAF8202031B13_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTable_0A1F139AE618A0F50F5BAF8202031B13" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Event [Table]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventTable_0A1F139AE618A0F50F5BAF8202031B13_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTable_0A1F139AE618A0F50F5BAF8202031B13" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_0A1F139AE618A0F50F5BAF8202031B13" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTable_0A1F139AE618A0F50F5BAF8202031B13" xlink:to="lab_us-gaap_SubsequentEventTable_0A1F139AE618A0F50F5BAF8202031B13" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventTypeAxis_925C4288FADCD54A570DAF8202037DD7_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis_925C4288FADCD54A570DAF8202037DD7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventTypeAxis_925C4288FADCD54A570DAF8202037DD7_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis_925C4288FADCD54A570DAF8202037DD7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_925C4288FADCD54A570DAF8202037DD7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_925C4288FADCD54A570DAF8202037DD7" xlink:to="lab_us-gaap_SubsequentEventTypeAxis_925C4288FADCD54A570DAF8202037DD7" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventTypeDomain_D10F352F90EF37A4AD1EAF820204AA5F_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain_D10F352F90EF37A4AD1EAF820204AA5F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventTypeDomain_D10F352F90EF37A4AD1EAF820204AA5F_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain_D10F352F90EF37A4AD1EAF820204AA5F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_D10F352F90EF37A4AD1EAF820204AA5F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_D10F352F90EF37A4AD1EAF820204AA5F" xlink:to="lab_us-gaap_SubsequentEventTypeDomain_D10F352F90EF37A4AD1EAF820204AA5F" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventMember_29DDF0BB646172C66087AF820204ED31_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventMember_29DDF0BB646172C66087AF820204ED31" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisition of Collegiate Peaks Bank</link:label>
    <link:label id="lab_us-gaap_SubsequentEventMember_29DDF0BB646172C66087AF820204ED31_label_en-US" xlink:label="lab_us-gaap_SubsequentEventMember_29DDF0BB646172C66087AF820204ED31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_29DDF0BB646172C66087AF820204ED31" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventMember_29DDF0BB646172C66087AF820204ED31" xlink:to="lab_us-gaap_SubsequentEventMember_29DDF0BB646172C66087AF820204ED31" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventLineItems_70AA76831ED06D851027AF8202044B57_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventLineItems_70AA76831ED06D851027AF8202044B57" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Event [Line Items]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventLineItems_70AA76831ED06D851027AF8202044B57_label_en-US" xlink:label="lab_us-gaap_SubsequentEventLineItems_70AA76831ED06D851027AF8202044B57" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems_70AA76831ED06D851027AF8202044B57" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventLineItems_70AA76831ED06D851027AF8202044B57" xlink:to="lab_us-gaap_SubsequentEventLineItems_70AA76831ED06D851027AF8202044B57" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventDescription_4F718AEF56153BB5305CAF820205EAEE_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventDescription_4F718AEF56153BB5305CAF820205EAEE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Event, Description</link:label>
    <link:label id="lab_us-gaap_SubsequentEventDescription_4F718AEF56153BB5305CAF820205EAEE_label_en-US" xlink:label="lab_us-gaap_SubsequentEventDescription_4F718AEF56153BB5305CAF820205EAEE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Event, Description</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventDescription" xlink:label="loc_us-gaap_SubsequentEventDescription_4F718AEF56153BB5305CAF820205EAEE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventDescription_4F718AEF56153BB5305CAF820205EAEE" xlink:to="lab_us-gaap_SubsequentEventDescription_4F718AEF56153BB5305CAF820205EAEE" xlink:type="arc" />
    <link:label id="lab_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438_terseLabel_en-US" xlink:label="lab_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2017 acquisitions</link:label>
    <link:label id="lab_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438_label_en-US" xlink:label="lab_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Year Acquisitions [Member]</link:label>
    <link:label id="lab_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438_documentation_en-US" xlink:label="lab_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consists of all acquisitions occurring during the current year.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CurrentYearAcquisitionsMember" xlink:label="loc_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438" xlink:to="lab_gbci_CurrentYearAcquisitionsMember_A59CC2F5C3E4B236417DA5A69B9FD438" xlink:type="arc" />
    <link:label id="lab_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A_terseLabel_en-US" xlink:label="lab_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2016 acquisitions</link:label>
    <link:label id="lab_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A_label_en-US" xlink:label="lab_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Prior Year Acquisitions [Member]</link:label>
    <link:label id="lab_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A_documentation_en-US" xlink:label="lab_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consists of all acquisitions occurring during the prior year.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PriorYearAcquisitionsMember" xlink:label="loc_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A" xlink:to="lab_gbci_PriorYearAcquisitionsMember_40833EE0BB0BE3042DB2A5A69B9FF64A" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionProFormaInformationAbstract_7CA0CE976DCDE7B1F8ECA5A69B9F55B5_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionProFormaInformationAbstract_7CA0CE976DCDE7B1F8ECA5A69B9F55B5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pro Forma Information</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionProFormaInformationAbstract_7CA0CE976DCDE7B1F8ECA5A69B9F55B5_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionProFormaInformationAbstract_7CA0CE976DCDE7B1F8ECA5A69B9F55B5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Pro Forma Information [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaInformationAbstract" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaInformationAbstract_7CA0CE976DCDE7B1F8ECA5A69B9F55B5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationAbstract_7CA0CE976DCDE7B1F8ECA5A69B9F55B5" xlink:to="lab_us-gaap_BusinessAcquisitionProFormaInformationAbstract_7CA0CE976DCDE7B1F8ECA5A69B9F55B5" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_63CDF0784D4F1D981AE1A5A69B9F5516_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_63CDF0784D4F1D981AE1A5A69B9F5516" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net interest income and non-interest income</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_63CDF0784D4F1D981AE1A5A69B9F5516_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_63CDF0784D4F1D981AE1A5A69B9F5516" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Pro Forma Revenue</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_63CDF0784D4F1D981AE1A5A69B9F5516" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_63CDF0784D4F1D981AE1A5A69B9F5516" xlink:to="lab_us-gaap_BusinessAcquisitionsProFormaRevenue_63CDF0784D4F1D981AE1A5A69B9F5516" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_AAE00E72045620DF8A93A5A69B9F842D_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_AAE00E72045620DF8A93A5A69B9F842D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_AAE00E72045620DF8A93A5A69B9F842D_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_AAE00E72045620DF8A93A5A69B9F842D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Pro Forma Net Income (Loss)</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_AAE00E72045620DF8A93A5A69B9F842D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_AAE00E72045620DF8A93A5A69B9F842D" xlink:to="lab_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_AAE00E72045620DF8A93A5A69B9F842D" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferredAbstract_349E98FE1194619AE07FA5A69BBEBBF6_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferredAbstract_349E98FE1194619AE07FA5A69BBEBBF6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of consideration transferred</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferredAbstract_349E98FE1194619AE07FA5A69BBEBBF6_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferredAbstract_349E98FE1194619AE07FA5A69BBEBBF6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Consideration Transferred [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredAbstract" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_349E98FE1194619AE07FA5A69BBEBBF6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferredAbstract_349E98FE1194619AE07FA5A69BBEBBF6" xlink:to="lab_us-gaap_BusinessCombinationConsiderationTransferredAbstract_349E98FE1194619AE07FA5A69BBEBBF6" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ECC090AF5C856226BC73A5A69BBE0A53_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ECC090AF5C856226BC73A5A69BBE0A53" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair value of Company shares issued, net of equity issuance costs</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ECC090AF5C856226BC73A5A69BBE0A53_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ECC090AF5C856226BC73A5A69BBE0A53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Consideration Transferred, Equity Interests Issued and Issuable</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ECC090AF5C856226BC73A5A69BBE0A53" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ECC090AF5C856226BC73A5A69BBE0A53" xlink:to="lab_us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_ECC090AF5C856226BC73A5A69BBE0A53" xlink:type="arc" />
    <link:label id="lab_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7_terseLabel_en-US" xlink:label="lab_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contingent consideration</link:label>
    <link:label id="lab_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7_label_en-US" xlink:label="lab_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Contingent Consideration</link:label>
    <link:label id="lab_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7_documentation_en-US" xlink:label="lab_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Contingent Consideration due on business combination.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BusinessCombinationContingentConsideration" xlink:label="loc_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7" xlink:to="lab_gbci_BusinessCombinationContingentConsideration_2ED2D72A4B4CBFEF7E13A5A69BBE40E7" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationConsiderationTransferred1_C3D64CF8F891251142D7A5A69BBE0FFA_totalLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationConsiderationTransferred1_C3D64CF8F891251142D7A5A69BBE0FFA" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total fair value of consideration transferred</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_C3D64CF8F891251142D7A5A69BBE0FFA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationConsiderationTransferred1_C3D64CF8F891251142D7A5A69BBE0FFA" xlink:to="lab_us-gaap_BusinessCombinationConsiderationTransferred1_C3D64CF8F891251142D7A5A69BBE0FFA" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_7D5A2F35F38E6C65FD4AA5A69BBEE822_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_7D5A2F35F38E6C65FD4AA5A69BBEE822" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recognized amounts of identifiable assets acquired and liabilities assumed</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_7D5A2F35F38E6C65FD4AA5A69BBEE822_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_7D5A2F35F38E6C65FD4AA5A69BBEE822" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_7D5A2F35F38E6C65FD4AA5A69BBEE822" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_7D5A2F35F38E6C65FD4AA5A69BBEE822" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNetAbstract_7D5A2F35F38E6C65FD4AA5A69BBEE822" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_884A5C9E975E2C445D05A5A69BBEC10B_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_884A5C9E975E2C445D05A5A69BBEC10B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Identifiable assets acquired</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_884A5C9E975E2C445D05A5A69BBEC10B_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_884A5C9E975E2C445D05A5A69BBEC10B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_884A5C9E975E2C445D05A5A69BBEC10B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_884A5C9E975E2C445D05A5A69BBEC10B" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_884A5C9E975E2C445D05A5A69BBEC10B" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_681E21546514854C917EA5A69BBE6C13_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_681E21546514854C917EA5A69BBE6C13" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_681E21546514854C917EA5A69BBE6C13_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_681E21546514854C917EA5A69BBE6C13" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_681E21546514854C917EA5A69BBE6C13" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_681E21546514854C917EA5A69BBE6C13" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_681E21546514854C917EA5A69BBE6C13" xlink:type="arc" />
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235_terseLabel_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment securities</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235_label_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Marketable Securities</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235_documentation_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale acquired at the acquisition date.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities" xlink:label="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235" xlink:to="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedMarketableSecurities_E71E963486E4B24E814CA5A69BBEA235" xlink:type="arc" />
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE_terseLabel_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans receivable</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE_label_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE_documentation_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable" xlink:label="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE" xlink:to="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedLoansReceivable_0FA8F5F0424F773C3B46A5A69BBE37AE" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_CD268808DD9B669D61C4A5A69BBE816E_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_CD268808DD9B669D61C4A5A69BBE816E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Core deposit intangible</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_CD268808DD9B669D61C4A5A69BBE816E_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_CD268808DD9B669D61C4A5A69BBE816E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_CD268808DD9B669D61C4A5A69BBE816E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_CD268808DD9B669D61C4A5A69BBE816E" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_CD268808DD9B669D61C4A5A69BBE816E" xlink:type="arc" />
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8_terseLabel_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued income and other assets</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8_label_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Assets</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8_documentation_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of other assets acquired at the acquisition date.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets" xlink:label="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8" xlink:to="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherAssets_9B010827AE9FF73F73E1A5A69BBE53C8" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EAAA6B78D1385E23997FA5A69BBEFA3A_totalLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EAAA6B78D1385E23997FA5A69BBEFA3A" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total identifiable assets acquired</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EAAA6B78D1385E23997FA5A69BBEFA3A_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EAAA6B78D1385E23997FA5A69BBEFA3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EAAA6B78D1385E23997FA5A69BBEFA3A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EAAA6B78D1385E23997FA5A69BBEFA3A" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_EAAA6B78D1385E23997FA5A69BBEFA3A" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_7EC32214B8914696B9FFA5A69BBE77E7_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_7EC32214B8914696B9FFA5A69BBE77E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities assumed</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_7EC32214B8914696B9FFA5A69BBE77E7_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_7EC32214B8914696B9FFA5A69BBE77E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_7EC32214B8914696B9FFA5A69BBE77E7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_7EC32214B8914696B9FFA5A69BBE77E7" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_7EC32214B8914696B9FFA5A69BBE77E7" xlink:type="arc" />
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113_terseLabel_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113_label_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113_documentation_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of deposits assumed at the acquisition date</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits" xlink:label="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113" xlink:to="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeposits_DDDD0784466EBBF3FB41A5A69BBEC113" xlink:type="arc" />
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9_terseLabel_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FHLB advances</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9_label_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Borrowings</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9_documentation_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Borrowings.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings" xlink:label="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9" xlink:to="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedBorrowings_059455C627C8191287D3A5A69BBEC1A9" xlink:type="arc" />
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E_terseLabel_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued expenses and other liabilities</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E_label_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Liabilities</link:label>
    <link:label id="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E_documentation_en-US" xlink:label="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Liabilities</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities" xlink:label="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E" xlink:to="lab_gbci_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherLiabilities_B6F3ADD14123AB7918D2A5A69BBEBE4E" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_1B3211D90E14BD940AB9A5A69BBEB5FB_totalLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_1B3211D90E14BD940AB9A5A69BBEB5FB" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities assumed</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_1B3211D90E14BD940AB9A5A69BBEB5FB_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_1B3211D90E14BD940AB9A5A69BBEB5FB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_1B3211D90E14BD940AB9A5A69BBEB5FB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_1B3211D90E14BD940AB9A5A69BBEB5FB" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_1B3211D90E14BD940AB9A5A69BBEB5FB" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E0E7D083298B47B0221A5A69BBEADD2_totalLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E0E7D083298B47B0221A5A69BBEADD2" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total identifiable net assets</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E0E7D083298B47B0221A5A69BBEADD2_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E0E7D083298B47B0221A5A69BBEADD2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E0E7D083298B47B0221A5A69BBEADD2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E0E7D083298B47B0221A5A69BBEADD2" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E0E7D083298B47B0221A5A69BBEADD2" xlink:type="arc" />
    <link:label id="lab_us-gaap_GoodwillAcquiredDuringPeriod_6EC620C3A3AACDC12CF7A5A69BBEE76C_verboseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAcquiredDuringPeriod_6EC620C3A3AACDC12CF7A5A69BBEE76C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Goodwill recognized</link:label>
    <link:label id="lab_us-gaap_GoodwillAcquiredDuringPeriod_6EC620C3A3AACDC12CF7A5A69BBEE76C_label_en-US" xlink:label="lab_us-gaap_GoodwillAcquiredDuringPeriod_6EC620C3A3AACDC12CF7A5A69BBEE76C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill, Acquired During Period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_6EC620C3A3AACDC12CF7A5A69BBEE76C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAcquiredDuringPeriod_6EC620C3A3AACDC12CF7A5A69BBEE76C" xlink:to="lab_us-gaap_GoodwillAcquiredDuringPeriod_6EC620C3A3AACDC12CF7A5A69BBEE76C" xlink:type="arc" />
    <link:label id="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_F7F733A3A7148EE3FD9DA5A69BBED227_terseLabel_en-US" xlink:label="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_F7F733A3A7148EE3FD9DA5A69BBED227" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Core Deposit Intangible, Weighted Average Useful Life</link:label>
    <link:label id="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_F7F733A3A7148EE3FD9DA5A69BBED227_label_en-US" xlink:label="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_F7F733A3A7148EE3FD9DA5A69BBED227" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Acquired Finite-lived Intangible Assets, Weighted Average Useful Life</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_F7F733A3A7148EE3FD9DA5A69BBED227" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_F7F733A3A7148EE3FD9DA5A69BBED227" xlink:to="lab_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_F7F733A3A7148EE3FD9DA5A69BBED227" xlink:type="arc" />
    <link:label id="lab_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock_0BCD395918B542B179B97598777A0526_verboseLabel_en-US" xlink:label="lab_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock_4E6232DFC8EE5E878387BEBA2BF7D848" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Parent Holding Company Information (Condensed)</link:label>
    <link:label id="lab_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock_0BCD395918B542B179B97598777A0526_label_en-US" xlink:label="lab_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock_4E6232DFC8EE5E878387BEBA2BF7D848" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Financial Information of Parent Company Only Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock" xlink:label="loc_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock_4E6232DFC8EE5E878387BEBA2BF7D848" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock_4E6232DFC8EE5E878387BEBA2BF7D848" xlink:to="lab_us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock_4E6232DFC8EE5E878387BEBA2BF7D848" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_E7872F4BF37EFD0DAD18759877CD7295_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_2CACC8057E6354909354AFFAD3BAF7A0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of Interest Rate Swap Derivative Financial Instruments</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_E7872F4BF37EFD0DAD18759877CD7295_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_2CACC8057E6354909354AFFAD3BAF7A0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Derivative Instruments [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsTextBlock" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_2CACC8057E6354909354AFFAD3BAF7A0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_2CACC8057E6354909354AFFAD3BAF7A0" xlink:to="lab_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_2CACC8057E6354909354AFFAD3BAF7A0" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_F97729DA255BBC370017759877CD9C2E_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_16076ECD6E395288BD2B8FFE4DAE84EB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of Pre-Tax Gains or Losses</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_F97729DA255BBC370017759877CD9C2E_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_16076ECD6E395288BD2B8FFE4DAE84EB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_16076ECD6E395288BD2B8FFE4DAE84EB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_16076ECD6E395288BD2B8FFE4DAE84EB" xlink:to="lab_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_16076ECD6E395288BD2B8FFE4DAE84EB" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingLiabilitiesTableTextBlock_6648F83E84EE3E5BC3EC759877CDA55A_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingLiabilitiesTableTextBlock_EE778A08A9DF5633A14CFA370D38AB57" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Offsetting Liabilities</link:label>
    <link:label id="lab_us-gaap_OffsettingLiabilitiesTableTextBlock_6648F83E84EE3E5BC3EC759877CDA55A_label_en-US" xlink:label="lab_us-gaap_OffsettingLiabilitiesTableTextBlock_EE778A08A9DF5633A14CFA370D38AB57" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Liabilities [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OffsettingLiabilitiesTableTextBlock" xlink:label="loc_us-gaap_OffsettingLiabilitiesTableTextBlock_EE778A08A9DF5633A14CFA370D38AB57" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingLiabilitiesTableTextBlock_EE778A08A9DF5633A14CFA370D38AB57" xlink:to="lab_us-gaap_OffsettingLiabilitiesTableTextBlock_EE778A08A9DF5633A14CFA370D38AB57" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_55312D3AF5CFB115CAC29ADADED9DC1B_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_55312D3AF5CFB115CAC29ADADED9DC1B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Activity within Accumulated Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:label id="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_55312D3AF5CFB115CAC29ADADED9DC1B_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_55312D3AF5CFB115CAC29ADADED9DC1B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_55312D3AF5CFB115CAC29ADADED9DC1B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_55312D3AF5CFB115CAC29ADADED9DC1B" xlink:to="lab_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_55312D3AF5CFB115CAC29ADADED9DC1B" xlink:type="arc" />
    <link:label id="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock_71ECB652E01BC3BDA969AF8203D9BE77_terseLabel_en-US" xlink:label="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock_71ECB652E01BC3BDA969AF8203D9BE77" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying Value of Repurchase Agreements by Maturity and Category of Collateral</link:label>
    <link:label id="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock_71ECB652E01BC3BDA969AF8203D9BE77_label_en-US" xlink:label="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock_71ECB652E01BC3BDA969AF8203D9BE77" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock" xlink:label="loc_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock_71ECB652E01BC3BDA969AF8203D9BE77" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock_71ECB652E01BC3BDA969AF8203D9BE77" xlink:to="lab_us-gaap_TransferOfCertainFinancialAssetsAccountedForAsSecuredBorrowingsTableTextBlock_71ECB652E01BC3BDA969AF8203D9BE77" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock_50B88817A636666E15E4AF8203D98665_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock_50B88817A636666E15E4AF8203D98665" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maturities of FHLB Advances</link:label>
    <link:label id="lab_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock_50B88817A636666E15E4AF8203D98665_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock_50B88817A636666E15E4AF8203D98665" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Federal Home Loan Bank, Advances, by Branch of FHLB Bank [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock" xlink:label="loc_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock_50B88817A636666E15E4AF8203D98665" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock_50B88817A636666E15E4AF8203D98665" xlink:to="lab_us-gaap_ScheduleOfFederalHomeLoanBankAdvancesByBranchOfFHLBBankTextBlock_50B88817A636666E15E4AF8203D98665" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3457FA30F300790CEF07A5F38E12AD96_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3457FA30F300790CEF07A5F38E12AD96" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Finite-Lived Intangible Assets [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3457FA30F300790CEF07A5F38E12AD96_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3457FA30F300790CEF07A5F38E12AD96" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Finite-Lived Intangible Assets [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3457FA30F300790CEF07A5F38E12AD96" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3457FA30F300790CEF07A5F38E12AD96" xlink:to="lab_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_3457FA30F300790CEF07A5F38E12AD96" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_E666267BA56609365006A5F38E12936E_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_E666267BA56609365006A5F38E12936E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets by Major Class [Axis]</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_E666267BA56609365006A5F38E12936E_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_E666267BA56609365006A5F38E12936E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets by Major Class [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_E666267BA56609365006A5F38E12936E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_E666267BA56609365006A5F38E12936E" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_E666267BA56609365006A5F38E12936E" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_69D1B5E0BE0F156D07FCA5F38E124FE1_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_69D1B5E0BE0F156D07FCA5F38E124FE1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Major Class Name [Domain]</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_69D1B5E0BE0F156D07FCA5F38E124FE1_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_69D1B5E0BE0F156D07FCA5F38E124FE1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Major Class Name [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_69D1B5E0BE0F156D07FCA5F38E124FE1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_69D1B5E0BE0F156D07FCA5F38E124FE1" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_69D1B5E0BE0F156D07FCA5F38E124FE1" xlink:type="arc" />
    <link:label id="lab_us-gaap_CoreDepositsMember_C786CB7EF66E246F4143A5F38E126FC2_terseLabel_en-US" xlink:label="lab_us-gaap_CoreDepositsMember_C786CB7EF66E246F4143A5F38E126FC2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Core Deposits Intangibles</link:label>
    <link:label id="lab_us-gaap_CoreDepositsMember_C786CB7EF66E246F4143A5F38E126FC2_label_en-US" xlink:label="lab_us-gaap_CoreDepositsMember_C786CB7EF66E246F4143A5F38E126FC2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Core Deposits [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CoreDepositsMember" xlink:label="loc_us-gaap_CoreDepositsMember_C786CB7EF66E246F4143A5F38E126FC2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CoreDepositsMember_C786CB7EF66E246F4143A5F38E126FC2" xlink:to="lab_us-gaap_CoreDepositsMember_C786CB7EF66E246F4143A5F38E126FC2" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_FE04FBBB02BD82A85A95A5F38E12844F_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_FE04FBBB02BD82A85A95A5F38E12844F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_FE04FBBB02BD82A85A95A5F38E12844F_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_FE04FBBB02BD82A85A95A5F38E12844F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_FE04FBBB02BD82A85A95A5F38E12844F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_FE04FBBB02BD82A85A95A5F38E12844F" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsLineItems_FE04FBBB02BD82A85A95A5F38E12844F" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_B4BE7E01E29C0E09B352A5F38E1259DF_verboseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_B4BE7E01E29C0E09B352A5F38E1259DF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Core Deposit Intangibles Acquired</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_B4BE7E01E29C0E09B352A5F38E1259DF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_B4BE7E01E29C0E09B352A5F38E1259DF" xlink:to="lab_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_B4BE7E01E29C0E09B352A5F38E1259DF" xlink:type="arc" />
    <link:label id="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BABE22BA392CF6E93A80A5F38E1235DD_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BABE22BA392CF6E93A80A5F38E1235DD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated impairment charge</link:label>
    <link:label id="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BABE22BA392CF6E93A80A5F38E1235DD_label_en-US" xlink:label="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BABE22BA392CF6E93A80A5F38E1235DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill, Impaired, Accumulated Impairment Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BABE22BA392CF6E93A80A5F38E1235DD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BABE22BA392CF6E93A80A5F38E1235DD" xlink:to="lab_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_BABE22BA392CF6E93A80A5F38E1235DD" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_8201326C206E815AB29C759876C6114E_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_9F02BB32F5A95DE9A307ECE0013BEC95" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Basic and diluted earnings per share</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_8201326C206E815AB29C759876C6114E_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_9F02BB32F5A95DE9A307ECE0013BEC95" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_9F02BB32F5A95DE9A307ECE0013BEC95" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_9F02BB32F5A95DE9A307ECE0013BEC95" xlink:to="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_9F02BB32F5A95DE9A307ECE0013BEC95" xlink:type="arc" />
    <link:label id="lab_gbci_PremisesAndEquipmentNetTextualAbstract_1A52CE0BBE2CD640F30D7598788FB9C9_verboseLabel_en-US" xlink:label="lab_gbci_PremisesAndEquipmentNetTextualAbstract_E45CA91FEBAF5EFABE6F54D345D952E4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Premises and Equipment</link:label>
    <link:label id="lab_gbci_PremisesAndEquipmentNetTextualAbstract_1A52CE0BBE2CD640F30D7598788FB9C9_label_en-US" xlink:label="lab_gbci_PremisesAndEquipmentNetTextualAbstract_E45CA91FEBAF5EFABE6F54D345D952E4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Premises and Equipment Net (Textual) [Abstract]</link:label>
    <link:label id="lab_gbci_PremisesAndEquipmentNetTextualAbstract_1A52CE0BBE2CD640F30D7598788FB9C9_documentation_en-US" xlink:label="lab_gbci_PremisesAndEquipmentNetTextualAbstract_E45CA91FEBAF5EFABE6F54D345D952E4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Premises and equipment net textual.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PremisesAndEquipmentNetTextualAbstract" xlink:label="loc_gbci_PremisesAndEquipmentNetTextualAbstract_E45CA91FEBAF5EFABE6F54D345D952E4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PremisesAndEquipmentNetTextualAbstract_E45CA91FEBAF5EFABE6F54D345D952E4" xlink:to="lab_gbci_PremisesAndEquipmentNetTextualAbstract_E45CA91FEBAF5EFABE6F54D345D952E4" xlink:type="arc" />
    <link:label id="lab_us-gaap_DepreciationNonproduction_95D7CCD87470296E15467598789095D3_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationNonproduction_94225D7A23425D5CB479BE31FA055AFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Depreciation expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationNonproduction" xlink:label="loc_us-gaap_DepreciationNonproduction_94225D7A23425D5CB479BE31FA055AFD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationNonproduction_94225D7A23425D5CB479BE31FA055AFD" xlink:to="lab_us-gaap_DepreciationNonproduction_94225D7A23425D5CB479BE31FA055AFD" xlink:type="arc" />
    <link:label id="lab_us-gaap_LeaseAndRentalExpense_22F2EC3CD354D07276D675987890F379_verboseLabel_en-US" xlink:label="lab_us-gaap_LeaseAndRentalExpense_9F4B309F20A55DF89CFFDC6A2CD79F55" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total rent expense</link:label>
    <link:label id="lab_us-gaap_LeaseAndRentalExpense_22F2EC3CD354D07276D675987890F379_label_en-US" xlink:label="lab_us-gaap_LeaseAndRentalExpense_9F4B309F20A55DF89CFFDC6A2CD79F55" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Rent Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LeaseAndRentalExpense" xlink:label="loc_us-gaap_LeaseAndRentalExpense_9F4B309F20A55DF89CFFDC6A2CD79F55" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseAndRentalExpense_9F4B309F20A55DF89CFFDC6A2CD79F55" xlink:to="lab_us-gaap_LeaseAndRentalExpense_9F4B309F20A55DF89CFFDC6A2CD79F55" xlink:type="arc" />
    <link:label id="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_8484E830CF158219D23A7598789084CB_verboseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_0EB9971235F252F09976D43F2438C640" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Related party rent expense</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_8484E830CF158219D23A7598789084CB_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_0EB9971235F252F09976D43F2438C640" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Transaction, Expenses from Transactions with Related Party</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty" xlink:label="loc_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_0EB9971235F252F09976D43F2438C640" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_0EB9971235F252F09976D43F2438C640" xlink:to="lab_us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty_0EB9971235F252F09976D43F2438C640" xlink:type="arc" />
    <link:label id="lab_us-gaap_CondensedCashFlowStatementTable_14FFAB2085FE6FE85904A52E44728C8D_terseLabel_en-US" xlink:label="lab_us-gaap_CondensedCashFlowStatementTable_14FFAB2085FE6FE85904A52E44728C8D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statement [Table]</link:label>
    <link:label id="lab_us-gaap_CondensedCashFlowStatementTable_14FFAB2085FE6FE85904A52E44728C8D_label_en-US" xlink:label="lab_us-gaap_CondensedCashFlowStatementTable_14FFAB2085FE6FE85904A52E44728C8D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statement [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedCashFlowStatementTable" xlink:label="loc_us-gaap_CondensedCashFlowStatementTable_14FFAB2085FE6FE85904A52E44728C8D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CondensedCashFlowStatementTable_14FFAB2085FE6FE85904A52E44728C8D" xlink:to="lab_us-gaap_CondensedCashFlowStatementTable_14FFAB2085FE6FE85904A52E44728C8D" xlink:type="arc" />
    <link:label id="lab_us-gaap_CondensedCashFlowStatementsCaptionsLineItems_7A826CDA4939BF5F59E8A52E44723534_terseLabel_en-US" xlink:label="lab_us-gaap_CondensedCashFlowStatementsCaptionsLineItems_7A826CDA4939BF5F59E8A52E44723534" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statements, Captions [Line Items]</link:label>
    <link:label id="lab_us-gaap_CondensedCashFlowStatementsCaptionsLineItems_7A826CDA4939BF5F59E8A52E44723534_label_en-US" xlink:label="lab_us-gaap_CondensedCashFlowStatementsCaptionsLineItems_7A826CDA4939BF5F59E8A52E44723534" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Cash Flow Statements, Captions [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CondensedCashFlowStatementsCaptionsLineItems" xlink:label="loc_us-gaap_CondensedCashFlowStatementsCaptionsLineItems_7A826CDA4939BF5F59E8A52E44723534" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CondensedCashFlowStatementsCaptionsLineItems_7A826CDA4939BF5F59E8A52E44723534" xlink:to="lab_us-gaap_CondensedCashFlowStatementsCaptionsLineItems_7A826CDA4939BF5F59E8A52E44723534" xlink:type="arc" />
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_399FF64E505A9DFCFC84A52E44729571_verboseLabel_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract_399FF64E505A9DFCFC84A52E44729571" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Condensed Statements of Cash Flows</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_399FF64E505A9DFCFC84A52E44729571" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_399FF64E505A9DFCFC84A52E44729571" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract_399FF64E505A9DFCFC84A52E44729571" xlink:type="arc" />
    <link:label id="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_565618BB7AE3689EFA02A52E4472B42E_negatedLabel_en-US" xlink:label="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_565618BB7AE3689EFA02A52E4472B42E" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Subsidiary income in excess of dividends distributed</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed" xlink:label="loc_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_565618BB7AE3689EFA02A52E4472B42E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_565618BB7AE3689EFA02A52E4472B42E" xlink:to="lab_gbci_SubsidiaryIncomeInExcessOfLessThanDividendsDistributed_565618BB7AE3689EFA02A52E4472B42E" xlink:type="arc" />
    <link:label id="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_32A0A73E53FDFA5E56F5A532FD57C5F4_negatedLabel_en-US" xlink:label="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_32A0A73E53FDFA5E56F5A532FD57C5F4" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Amortization of purchase accounting adjustments</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations" xlink:label="loc_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_32A0A73E53FDFA5E56F5A532FD57C5F4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_32A0A73E53FDFA5E56F5A532FD57C5F4" xlink:to="lab_gbci_AccretionAmortizationofDiscountsandPremiumsBusinessCombinations_32A0A73E53FDFA5E56F5A532FD57C5F4" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_51B200387F922AAAC205A530581E99B0_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_51B200387F922AAAC205A530581E99B0" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Gain on sale of investments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:label="loc_us-gaap_GainLossOnSaleOfSecuritiesNet_51B200387F922AAAC205A530581E99B0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfSecuritiesNet_51B200387F922AAAC205A530581E99B0" xlink:to="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_51B200387F922AAAC205A530581E99B0" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensation_C1E41A54ABC9B9FF854EA551B7D94252_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensation_C1E41A54ABC9B9FF854EA551B7D94252" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock-based compensation, net of tax benefits</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_C1E41A54ABC9B9FF854EA551B7D94252" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensation_C1E41A54ABC9B9FF854EA551B7D94252" xlink:to="lab_us-gaap_ShareBasedCompensation_C1E41A54ABC9B9FF854EA551B7D94252" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_EACF17E1DA0DC7410ABCA52E4472DBCF_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_EACF17E1DA0DC7410ABCA52E4472DBCF" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Net change in other assets and other liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_EACF17E1DA0DC7410ABCA52E4472DBCF_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_EACF17E1DA0DC7410ABCA52E4472DBCF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Other Operating Assets and Liabilities, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_EACF17E1DA0DC7410ABCA52E4472DBCF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_EACF17E1DA0DC7410ABCA52E4472DBCF" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_EACF17E1DA0DC7410ABCA52E4472DBCF" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_8CFA57F1E1FA1F7C5A93A52E4472952C_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_8CFA57F1E1FA1F7C5A93A52E4472952C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_8CFA57F1E1FA1F7C5A93A52E4472952C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_8CFA57F1E1FA1F7C5A93A52E4472952C" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_8CFA57F1E1FA1F7C5A93A52E4472952C" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E449175D5DF6E9612FFFA52E44729E5F_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E449175D5DF6E9612FFFA52E44729E5F" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Net (increase) decrease of premises and equipment</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E449175D5DF6E9612FFFA52E44729E5F_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E449175D5DF6E9612FFFA52E44729E5F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Property, Plant, and Equipment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E449175D5DF6E9612FFFA52E44729E5F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E449175D5DF6E9612FFFA52E44729E5F" xlink:to="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_E449175D5DF6E9612FFFA52E44729E5F" xlink:type="arc" />
    <link:label id="lab_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC_negatedTerseLabel_en-US" xlink:label="lab_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale of non-marketable equity securities</link:label>
    <link:label id="lab_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC_label_en-US" xlink:label="lab_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for Proceeds from Non Marketable Equity Securities</link:label>
    <link:label id="lab_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC_documentation_en-US" xlink:label="lab_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Payments for proceeds from non-marketable equity securities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_PaymentsForProceedsFromNonMarketableEquitySecurities" xlink:label="loc_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC" xlink:to="lab_gbci_PaymentsForProceedsFromNonMarketableEquitySecurities_A30C701363C8BCC5600AA52E44720FCC" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries_99ACABD10FE86EE3AB30A52E447273B3_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries_99ACABD10FE86EE3AB30A52E447273B3" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Equity contribution to subsidiaries</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries_99ACABD10FE86EE3AB30A52E447273B3_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries_99ACABD10FE86EE3AB30A52E447273B3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments to Acquire Additional Interest in Subsidiaries</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries" xlink:label="loc_us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries_99ACABD10FE86EE3AB30A52E447273B3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries_99ACABD10FE86EE3AB30A52E447273B3" xlink:to="lab_us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries_99ACABD10FE86EE3AB30A52E447273B3" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C17A8F79EC833F64450DA52E447244CC_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C17A8F79EC833F64450DA52E447244CC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net cash used in by investing activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C17A8F79EC833F64450DA52E447244CC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_C17A8F79EC833F64450DA52E447244CC" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_C17A8F79EC833F64450DA52E447244CC" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_06339217B78A21ECAB60A552BF75B019_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_06339217B78A21ECAB60A552BF75B019" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Tax withholding payments for stock-based compensation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_06339217B78A21ECAB60A552BF75B019" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_06339217B78A21ECAB60A552BF75B019" xlink:to="lab_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_06339217B78A21ECAB60A552BF75B019" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_6946071E8CD68BA89FA8A52E44726999_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_6946071E8CD68BA89FA8A52E44726999" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net cash used in financing activities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6946071E8CD68BA89FA8A52E44726999" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_6946071E8CD68BA89FA8A52E44726999" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_6946071E8CD68BA89FA8A52E44726999" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_D8E5984F88C655497C78A52E4472D344_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_D8E5984F88C655497C78A52E4472D344" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Net (decrease) increase in cash and cash equivalents</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_D8E5984F88C655497C78A52E4472D344" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_D8E5984F88C655497C78A52E4472D344" xlink:to="lab_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease_D8E5984F88C655497C78A52E4472D344" xlink:type="arc" />
    <link:label id="lab_us-gaap_MarketableSecuritiesTextBlock_4C411BF982BAC2CA0BAB7598776E65D2_verboseLabel_en-US" xlink:label="lab_us-gaap_MarketableSecuritiesTextBlock_18493A048A625779B8E3D6AD8B3151AB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Amortized cost, gross unrealized gains and losses and the fair value of investment securities</link:label>
    <link:label id="lab_us-gaap_MarketableSecuritiesTextBlock_4C411BF982BAC2CA0BAB7598776E65D2_label_en-US" xlink:label="lab_us-gaap_MarketableSecuritiesTextBlock_18493A048A625779B8E3D6AD8B3151AB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Marketable Securities [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketableSecuritiesTextBlock" xlink:label="loc_us-gaap_MarketableSecuritiesTextBlock_18493A048A625779B8E3D6AD8B3151AB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MarketableSecuritiesTextBlock_18493A048A625779B8E3D6AD8B3151AB" xlink:to="lab_us-gaap_MarketableSecuritiesTextBlock_18493A048A625779B8E3D6AD8B3151AB" xlink:type="arc" />
    <link:label id="lab_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_0225C42BE3CFD8B753387598776E1926_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_FA9D8217BEB251358114383BDAA0A93E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amortized cost and fair value of securities by contractual maturity</link:label>
    <link:label id="lab_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_0225C42BE3CFD8B753387598776E1926_label_en-US" xlink:label="lab_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_FA9D8217BEB251358114383BDAA0A93E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments Classified by Contractual Maturity Date [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:label="loc_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_FA9D8217BEB251358114383BDAA0A93E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_FA9D8217BEB251358114383BDAA0A93E" xlink:to="lab_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_FA9D8217BEB251358114383BDAA0A93E" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainLossOnInvestmentsTextBlock_57FB33CB83A85C2860367598776EF319_verboseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnInvestmentsTextBlock_38287F9B953E51339B9FB2575A66196A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sales and calls of investment securities and associated gains and losses</link:label>
    <link:label id="lab_us-gaap_GainLossOnInvestmentsTextBlock_57FB33CB83A85C2860367598776EF319_label_en-US" xlink:label="lab_us-gaap_GainLossOnInvestmentsTextBlock_38287F9B953E51339B9FB2575A66196A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Loss) on Investments [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnInvestmentsTextBlock" xlink:label="loc_us-gaap_GainLossOnInvestmentsTextBlock_38287F9B953E51339B9FB2575A66196A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnInvestmentsTextBlock_38287F9B953E51339B9FB2575A66196A" xlink:to="lab_us-gaap_GainLossOnInvestmentsTextBlock_38287F9B953E51339B9FB2575A66196A" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_91FCA1BCA81B3CD8A65D7598776EF0E8_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_AEDA1AF897F850D6B2355EEC8F352E22" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of investment securities with an unrealized loss position</link:label>
    <link:label id="lab_us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_91FCA1BCA81B3CD8A65D7598776EF0E8_label_en-US" xlink:label="lab_us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_AEDA1AF897F850D6B2355EEC8F352E22" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Unrealized Loss on Investments [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_AEDA1AF897F850D6B2355EEC8F352E22" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_AEDA1AF897F850D6B2355EEC8F352E22" xlink:to="lab_us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock_AEDA1AF897F850D6B2355EEC8F352E22" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_DD5A1CAA186C1E7CA9EFA45FFDC60C05_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_DD5A1CAA186C1E7CA9EFA45FFDC60C05" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Accounts, Notes, Loans and Financing Receivable [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_DD5A1CAA186C1E7CA9EFA45FFDC60C05_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_DD5A1CAA186C1E7CA9EFA45FFDC60C05" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Accounts, Notes, Loans and Financing Receivable [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_DD5A1CAA186C1E7CA9EFA45FFDC60C05" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_DD5A1CAA186C1E7CA9EFA45FFDC60C05" xlink:to="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_DD5A1CAA186C1E7CA9EFA45FFDC60C05" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccountsNotesAndLoansReceivableLineItems_F5FE9C231B4CAB0BC847A45FFDD64647_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsNotesAndLoansReceivableLineItems_F5FE9C231B4CAB0BC847A45FFDD64647" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts, Notes, Loans and Financing Receivable [Line Items]</link:label>
    <link:label id="lab_us-gaap_AccountsNotesAndLoansReceivableLineItems_F5FE9C231B4CAB0BC847A45FFDD64647_label_en-US" xlink:label="lab_us-gaap_AccountsNotesAndLoansReceivableLineItems_F5FE9C231B4CAB0BC847A45FFDD64647" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts, Notes, Loans and Financing Receivable [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_F5FE9C231B4CAB0BC847A45FFDD64647" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_F5FE9C231B4CAB0BC847A45FFDD64647" xlink:to="lab_us-gaap_AccountsNotesAndLoansReceivableLineItems_F5FE9C231B4CAB0BC847A45FFDD64647" xlink:type="arc" />
    <link:label id="lab_us-gaap_NotesReceivableNetAbstract_DDDAFC0AF103A9806A15A45FFDD67E9B_terseLabel_en-US" xlink:label="lab_us-gaap_NotesReceivableNetAbstract_DDDAFC0AF103A9806A15A45FFDD67E9B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of Loans Receivable</link:label>
    <link:label id="lab_us-gaap_NotesReceivableNetAbstract_DDDAFC0AF103A9806A15A45FFDD67E9B_label_en-US" xlink:label="lab_us-gaap_NotesReceivableNetAbstract_DDDAFC0AF103A9806A15A45FFDD67E9B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NotesReceivableNetAbstract" xlink:label="loc_us-gaap_NotesReceivableNetAbstract_DDDAFC0AF103A9806A15A45FFDD67E9B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NotesReceivableNetAbstract_DDDAFC0AF103A9806A15A45FFDD67E9B" xlink:to="lab_us-gaap_NotesReceivableNetAbstract_DDDAFC0AF103A9806A15A45FFDD67E9B" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableNetReportedAmount_94AD070983B07524D2D8A45FFDD68D49_terseLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableNetReportedAmount_94AD070983B07524D2D8A45FFDD68D49" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans receivable, net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:label="loc_us-gaap_LoansAndLeasesReceivableNetReportedAmount_94AD070983B07524D2D8A45FFDD68D49" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableNetReportedAmount_94AD070983B07524D2D8A45FFDD68D49" xlink:to="lab_us-gaap_LoansAndLeasesReceivableNetReportedAmount_94AD070983B07524D2D8A45FFDD68D49" xlink:type="arc" />
    <link:label id="lab_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089_terseLabel_en-US" xlink:label="lab_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net deferred origination (fees) costs included in loans receivable</link:label>
    <link:label id="lab_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089_label_en-US" xlink:label="lab_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unamortized Loan Origination Fees and Costs</link:label>
    <link:label id="lab_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089_documentation_en-US" xlink:label="lab_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of deferred fees paid by borrowers and unamortized costs incurred to originate loans and leases.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_UnamortizedLoanOriginationFeesandCosts" xlink:label="loc_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089" xlink:to="lab_gbci_UnamortizedLoanOriginationFeesandCosts_0375E9A722B56EF3BE0CA46641676089" xlink:type="arc" />
    <link:label id="lab_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2_terseLabel_en-US" xlink:label="lab_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net purchase accounting (discounts) premiums included in loans receivable</link:label>
    <link:label id="lab_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2_label_en-US" xlink:label="lab_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unamortized Discounts and Premiums on Loans</link:label>
    <link:label id="lab_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2_documentation_en-US" xlink:label="lab_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of premiums over or discounts from face amounts of loans that are being amortized into income as an adjustment to yield.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_UnamortizedDiscountsandPremiumsonLoans" xlink:label="loc_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2" xlink:to="lab_gbci_UnamortizedDiscountsandPremiumsonLoans_64E8E04E64A51E45D8F4A46687986FA2" xlink:type="arc" />
    <link:label id="lab_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86_terseLabel_en-US" xlink:label="lab_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Weighted-average interest rate on loans (tax-equivalent)</link:label>
    <link:label id="lab_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86_label_en-US" xlink:label="lab_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted Average Interest Rate on Loans</link:label>
    <link:label id="lab_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86_documentation_en-US" xlink:label="lab_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Weighted average interest rate on loans.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_WeightedAverageInterestRateOnLoans" xlink:label="loc_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86" xlink:to="lab_gbci_WeightedAverageInterestRateOnLoans_393336FB5341EA39574DA45FFDD65A86" xlink:type="arc" />
    <link:label id="lab_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_FB49F980C27F936F3025759877B463C5_label_en-US" xlink:label="lab_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_26247EAC759B5E9B8FA66E204C56CE8E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Quarterly Financial Information Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationDisclosureAbstract" xlink:label="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_26247EAC759B5E9B8FA66E204C56CE8E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_26247EAC759B5E9B8FA66E204C56CE8E" xlink:to="lab_us-gaap_QuarterlyFinancialInformationDisclosureAbstract_26247EAC759B5E9B8FA66E204C56CE8E" xlink:type="arc" />
    <link:label id="lab_us-gaap_SelectedQuarterlyFinancialInformationAbstract_22A02AF514AAF3648D46759877B504F7_verboseLabel_en-US" xlink:label="lab_us-gaap_SelectedQuarterlyFinancialInformationAbstract_8E225C03F5F959189B3CEBA99214F411" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summarized unaudited quarterly financial data</link:label>
    <link:label id="lab_us-gaap_SelectedQuarterlyFinancialInformationAbstract_22A02AF514AAF3648D46759877B504F7_label_en-US" xlink:label="lab_us-gaap_SelectedQuarterlyFinancialInformationAbstract_8E225C03F5F959189B3CEBA99214F411" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Selected Quarterly Financial Information [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SelectedQuarterlyFinancialInformationAbstract" xlink:label="loc_us-gaap_SelectedQuarterlyFinancialInformationAbstract_8E225C03F5F959189B3CEBA99214F411" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SelectedQuarterlyFinancialInformationAbstract_8E225C03F5F959189B3CEBA99214F411" xlink:to="lab_us-gaap_SelectedQuarterlyFinancialInformationAbstract_8E225C03F5F959189B3CEBA99214F411" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestAndDividendIncomeOperating_3BAF3C53CAB915ED8ECE759877B5D342_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeOperating_19EE4DF4D4FE5DFBAB11E2D33046A947" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest income</link:label>
    <link:label id="lab_us-gaap_InterestAndDividendIncomeOperating_3BAF3C53CAB915ED8ECE759877B5D342_label_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeOperating_19EE4DF4D4FE5DFBAB11E2D33046A947" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest and Dividend Income, Operating</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndDividendIncomeOperating" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperating_19EE4DF4D4FE5DFBAB11E2D33046A947" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperating_19EE4DF4D4FE5DFBAB11E2D33046A947" xlink:to="lab_us-gaap_InterestAndDividendIncomeOperating_19EE4DF4D4FE5DFBAB11E2D33046A947" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpense_2F56A3FAE62B778B21EC759877B56457_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestExpense_AB6216BD672D5D9FABB135110A417D1F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest expense</link:label>
    <link:label id="lab_us-gaap_InterestExpense_2F56A3FAE62B778B21EC759877B56457_label_en-US" xlink:label="lab_us-gaap_InterestExpense_AB6216BD672D5D9FABB135110A417D1F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_AB6216BD672D5D9FABB135110A417D1F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpense_AB6216BD672D5D9FABB135110A417D1F" xlink:to="lab_us-gaap_InterestExpense_AB6216BD672D5D9FABB135110A417D1F" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestIncomeExpenseNet_DF181143ABD81558928F759877B50586_terseLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNet_4E4FC579F83851B691308EE3026CA802" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net interest income</link:label>
    <link:label id="lab_us-gaap_InterestIncomeExpenseNet_DF181143ABD81558928F759877B50586_label_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNet_4E4FC579F83851B691308EE3026CA802" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income (Expense), Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_4E4FC579F83851B691308EE3026CA802" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeExpenseNet_4E4FC579F83851B691308EE3026CA802" xlink:to="lab_us-gaap_InterestIncomeExpenseNet_4E4FC579F83851B691308EE3026CA802" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProvisionForLoanLeaseAndOtherLosses_203A5C13040DA9BB451C759877B58956_verboseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForLoanLeaseAndOtherLosses_B334AB1AD0945333BCF6D9E2C2F1CCF8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Provision for loan losses</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProvisionForLoanLeaseAndOtherLosses" xlink:label="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_B334AB1AD0945333BCF6D9E2C2F1CCF8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProvisionForLoanLeaseAndOtherLosses_B334AB1AD0945333BCF6D9E2C2F1CCF8" xlink:to="lab_us-gaap_ProvisionForLoanLeaseAndOtherLosses_B334AB1AD0945333BCF6D9E2C2F1CCF8" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_27550B4D42F852D5A4A5759877B5A646_terseLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_4017E134926555B2BA376C99A8170F08" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net interest income after provision for loan losses</link:label>
    <link:label id="lab_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_27550B4D42F852D5A4A5759877B5A646_label_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_4017E134926555B2BA376C99A8170F08" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Income (Expense), after Provision for Loan Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:label="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_4017E134926555B2BA376C99A8170F08" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_4017E134926555B2BA376C99A8170F08" xlink:to="lab_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_4017E134926555B2BA376C99A8170F08" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestIncome_71C1BBCF245301D4CE4F759877B519A6_terseLabel_en-US" xlink:label="lab_us-gaap_NoninterestIncome_97AA41627E035F838F6437284CBBC053" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-interest income</link:label>
    <link:label id="lab_us-gaap_NoninterestIncome_71C1BBCF245301D4CE4F759877B519A6_label_en-US" xlink:label="lab_us-gaap_NoninterestIncome_97AA41627E035F838F6437284CBBC053" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noninterest Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestIncome" xlink:label="loc_us-gaap_NoninterestIncome_97AA41627E035F838F6437284CBBC053" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestIncome_97AA41627E035F838F6437284CBBC053" xlink:to="lab_us-gaap_NoninterestIncome_97AA41627E035F838F6437284CBBC053" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestExpense_63E92955CA616CB56718759877B594D6_terseLabel_en-US" xlink:label="lab_us-gaap_NoninterestExpense_95555A4B9A1A560CBFCC0EBE35FDD081" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-interest expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestExpense" xlink:label="loc_us-gaap_NoninterestExpense_95555A4B9A1A560CBFCC0EBE35FDD081" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestExpense_95555A4B9A1A560CBFCC0EBE35FDD081" xlink:to="lab_us-gaap_NoninterestExpense_95555A4B9A1A560CBFCC0EBE35FDD081" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_510CA40E8CC3410894C3759877B55FC8_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_DA3DFF8D708E59239C76C4A02BBECCB9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income before income taxes</link:label>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_510CA40E8CC3410894C3759877B55FC8_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_DA3DFF8D708E59239C76C4A02BBECCB9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_DA3DFF8D708E59239C76C4A02BBECCB9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_DA3DFF8D708E59239C76C4A02BBECCB9" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_DA3DFF8D708E59239C76C4A02BBECCB9" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_2911E1C007492EE3AA1B759877B53D32_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_B1AE41638DB856F782589CD8634B1658" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Federal and state income tax expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_B1AE41638DB856F782589CD8634B1658" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_B1AE41638DB856F782589CD8634B1658" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit_B1AE41638DB856F782589CD8634B1658" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareBasic_AEB6EFD491C6E0BE52B8759877B558BC_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasic_9916781DACEA5E088BDC74CB8CC95B30" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Basic earnings per share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareBasic" xlink:label="loc_us-gaap_EarningsPerShareBasic_9916781DACEA5E088BDC74CB8CC95B30" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareBasic_9916781DACEA5E088BDC74CB8CC95B30" xlink:to="lab_us-gaap_EarningsPerShareBasic_9916781DACEA5E088BDC74CB8CC95B30" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_15AC3A828A7AA2DF94B1759877B644AF_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted_B215B28890C85D90953EAF03641425F1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Diluted earnings per share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerShareDiluted" xlink:label="loc_us-gaap_EarningsPerShareDiluted_B215B28890C85D90953EAF03641425F1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareDiluted_B215B28890C85D90953EAF03641425F1" xlink:to="lab_us-gaap_EarningsPerShareDiluted_B215B28890C85D90953EAF03641425F1" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTable_49920F8A42938A859C56759877C15DA1_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTable_CBFECE3A82685B528D321C59515F7A7D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTable_49920F8A42938A859C56759877C15DA1_label_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTable_CBFECE3A82685B528D321C59515F7A7D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, by Balance Sheet Grouping [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByBalanceSheetGroupingTable" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_CBFECE3A82685B528D321C59515F7A7D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_CBFECE3A82685B528D321C59515F7A7D" xlink:to="lab_us-gaap_FairValueByBalanceSheetGroupingTable_CBFECE3A82685B528D321C59515F7A7D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueByMeasurementBasisAxis_469DF492405484F960BC759877C160DB_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementBasisAxis_19E434634225521A999D1CAE23FABCE8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Measurement Basis [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByMeasurementBasisAxis_469DF492405484F960BC759877C160DB_label_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementBasisAxis_19E434634225521A999D1CAE23FABCE8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Measurement Basis [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueByMeasurementBasisAxis" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_19E434634225521A999D1CAE23FABCE8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_19E434634225521A999D1CAE23FABCE8" xlink:to="lab_us-gaap_FairValueByMeasurementBasisAxis_19E434634225521A999D1CAE23FABCE8" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueDisclosureItemAmountsDomain_D67A2868E5C1786CBAAB759877C19F03_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosureItemAmountsDomain_30B9A8EBBCBB5E1880A250A56E03DC62" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Measurement [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosureItemAmountsDomain_D67A2868E5C1786CBAAB759877C19F03_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosureItemAmountsDomain_30B9A8EBBCBB5E1880A250A56E03DC62" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurement [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueDisclosureItemAmountsDomain" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_30B9A8EBBCBB5E1880A250A56E03DC62" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_30B9A8EBBCBB5E1880A250A56E03DC62" xlink:to="lab_us-gaap_FairValueDisclosureItemAmountsDomain_30B9A8EBBCBB5E1880A250A56E03DC62" xlink:type="arc" />
    <link:label id="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_F846AEF9E033D098680B759877C1D770_terseLabel_en-US" xlink:label="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_E0F6B3665BC959E694F5EB820AC73201" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Portion at Fair Value Measurement [Member]</link:label>
    <link:label id="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_F846AEF9E033D098680B759877C1D770_label_en-US" xlink:label="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_E0F6B3665BC959E694F5EB820AC73201" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Portion at Fair Value Measurement [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_E0F6B3665BC959E694F5EB820AC73201" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_E0F6B3665BC959E694F5EB820AC73201" xlink:to="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_E0F6B3665BC959E694F5EB820AC73201" xlink:type="arc" />
    <link:label id="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_042E786529F1AFB13C2F759877C1F2F7_terseLabel_en-US" xlink:label="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_9571A7E346B55526AF57112A89A1848E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying Amount</link:label>
    <link:label id="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_042E786529F1AFB13C2F759877C1F2F7_label_en-US" xlink:label="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_9571A7E346B55526AF57112A89A1848E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reported Value Measurement [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_9571A7E346B55526AF57112A89A1848E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_9571A7E346B55526AF57112A89A1848E" xlink:to="lab_us-gaap_CarryingReportedAmountFairValueDisclosureMember_9571A7E346B55526AF57112A89A1848E" xlink:type="arc" />
    <link:label id="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember_40C8F336656D0F2F6F87759877C19CDA_terseLabel_en-US" xlink:label="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember_637FBC46D2A756AAA1B44DDD4054B60E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated Fair Value</link:label>
    <link:label id="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember_40C8F336656D0F2F6F87759877C19CDA_label_en-US" xlink:label="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember_637FBC46D2A756AAA1B44DDD4054B60E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Estimate of Fair Value Measurement [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_637FBC46D2A756AAA1B44DDD4054B60E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_637FBC46D2A756AAA1B44DDD4054B60E" xlink:to="lab_us-gaap_EstimateOfFairValueFairValueDisclosureMember_637FBC46D2A756AAA1B44DDD4054B60E" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_BFEBB4A3BF1BBEAF0252759877C2DA04_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_644F715C8EB25B4695DADB3287E41F60" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]</link:label>
    <link:label id="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_BFEBB4A3BF1BBEAF0252759877C2DA04_label_en-US" xlink:label="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_644F715C8EB25B4695DADB3287E41F60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_644F715C8EB25B4695DADB3287E41F60" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_644F715C8EB25B4695DADB3287E41F60" xlink:to="lab_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_644F715C8EB25B4695DADB3287E41F60" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_2475CDFEC2A913C5E5F9759877C28A10_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_23346D39029D553EB796533C6A3AFE06" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Assets</link:label>
    <link:label id="lab_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_2475CDFEC2A913C5E5F9759877C28A10_label_en-US" xlink:label="lab_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_23346D39029D553EB796533C6A3AFE06" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract" xlink:label="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_23346D39029D553EB796533C6A3AFE06" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_23346D39029D553EB796533C6A3AFE06" xlink:to="lab_us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract_23346D39029D553EB796533C6A3AFE06" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_8F677BCAFB88D60B60A7759877C2F33B_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_284FA25D480F5A98B41FF55F20970C61" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_8F677BCAFB88D60B60A7759877C2F33B_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_284FA25D480F5A98B41FF55F20970C61" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_284FA25D480F5A98B41FF55F20970C61" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_284FA25D480F5A98B41FF55F20970C61" xlink:to="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_284FA25D480F5A98B41FF55F20970C61" xlink:type="arc" />
    <link:label id="lab_gbci_AvailableforSaleInvestmentsFairValueDisclosure_D0D123400EB020E5B4DA759877C21D82_verboseLabel_en-US" xlink:label="lab_gbci_AvailableforSaleInvestmentsFairValueDisclosure_F978E800ABC353099F8B4EF9263F7A52" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investment securities, available-for-sale</link:label>
    <link:label id="lab_gbci_AvailableforSaleInvestmentsFairValueDisclosure_D0D123400EB020E5B4DA759877C21D82_label_en-US" xlink:label="lab_gbci_AvailableforSaleInvestmentsFairValueDisclosure_F978E800ABC353099F8B4EF9263F7A52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-Sale Investments, Fair Value Disclosure</link:label>
    <link:label id="lab_gbci_AvailableforSaleInvestmentsFairValueDisclosure_D0D123400EB020E5B4DA759877C21D82_documentation_en-US" xlink:label="lab_gbci_AvailableforSaleInvestmentsFairValueDisclosure_F978E800ABC353099F8B4EF9263F7A52" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair value portion of available-for-sale investment securities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AvailableforSaleInvestmentsFairValueDisclosure" xlink:label="loc_gbci_AvailableforSaleInvestmentsFairValueDisclosure_F978E800ABC353099F8B4EF9263F7A52" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AvailableforSaleInvestmentsFairValueDisclosure_F978E800ABC353099F8B4EF9263F7A52" xlink:to="lab_gbci_AvailableforSaleInvestmentsFairValueDisclosure_F978E800ABC353099F8B4EF9263F7A52" xlink:type="arc" />
    <link:label id="lab_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_AAC22E8196B064D3B84D759877C2D96D_terseLabel_en-US" xlink:label="lab_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_966708447EE5544BB23986C0824B1140" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment securities, held-to-maturity</link:label>
    <link:label id="lab_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_AAC22E8196B064D3B84D759877C2D96D_label_en-US" xlink:label="lab_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_966708447EE5544BB23986C0824B1140" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-Maturity Investments, Fair Value Disclosure</link:label>
    <link:label id="lab_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_AAC22E8196B064D3B84D759877C2D96D_documentation_en-US" xlink:label="lab_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_966708447EE5544BB23986C0824B1140" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Fair value portion of held-to-maturity investment securities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_HeldtoMaturityInvestmentsFairValueDisclosure" xlink:label="loc_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_966708447EE5544BB23986C0824B1140" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_966708447EE5544BB23986C0824B1140" xlink:to="lab_gbci_HeldtoMaturityInvestmentsFairValueDisclosure_966708447EE5544BB23986C0824B1140" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansReceivableFairValueDisclosure_E4700AD27A59C4014EEB759877C25A8A_terseLabel_en-US" xlink:label="lab_us-gaap_LoansReceivableFairValueDisclosure_DA77DCE447315290B8F732D827B0F3DD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans receivable, net of ALLL</link:label>
    <link:label id="lab_us-gaap_LoansReceivableFairValueDisclosure_E4700AD27A59C4014EEB759877C25A8A_label_en-US" xlink:label="lab_us-gaap_LoansReceivableFairValueDisclosure_DA77DCE447315290B8F732D827B0F3DD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans Receivable, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansReceivableFairValueDisclosure" xlink:label="loc_us-gaap_LoansReceivableFairValueDisclosure_DA77DCE447315290B8F732D827B0F3DD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansReceivableFairValueDisclosure_DA77DCE447315290B8F732D827B0F3DD" xlink:to="lab_us-gaap_LoansReceivableFairValueDisclosure_DA77DCE447315290B8F732D827B0F3DD" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccountsReceivableFairValueDisclosure_554D4481507EAFE14C4D759877C21EF0_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableFairValueDisclosure_78D73F35C67557B3BB2ACC235EF045D1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued interest receivable</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableFairValueDisclosure_554D4481507EAFE14C4D759877C21EF0_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableFairValueDisclosure_78D73F35C67557B3BB2ACC235EF045D1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Receivable, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableFairValueDisclosure" xlink:label="loc_us-gaap_AccountsReceivableFairValueDisclosure_78D73F35C67557B3BB2ACC235EF045D1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableFairValueDisclosure_78D73F35C67557B3BB2ACC235EF045D1" xlink:to="lab_us-gaap_AccountsReceivableFairValueDisclosure_78D73F35C67557B3BB2ACC235EF045D1" xlink:type="arc" />
    <link:label id="lab_us-gaap_CostMethodInvestmentsFairValueDisclosure_AF9C77AB0F172E34CB69759877C2BC76_terseLabel_en-US" xlink:label="lab_us-gaap_CostMethodInvestmentsFairValueDisclosure_3ACEA8D8182A5F96B12EBAA56ED894DB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Non-marketable equity securities</link:label>
    <link:label id="lab_us-gaap_CostMethodInvestmentsFairValueDisclosure_AF9C77AB0F172E34CB69759877C2BC76_label_en-US" xlink:label="lab_us-gaap_CostMethodInvestmentsFairValueDisclosure_3ACEA8D8182A5F96B12EBAA56ED894DB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cost Method Investments, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostMethodInvestmentsFairValueDisclosure" xlink:label="loc_us-gaap_CostMethodInvestmentsFairValueDisclosure_3ACEA8D8182A5F96B12EBAA56ED894DB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostMethodInvestmentsFairValueDisclosure_3ACEA8D8182A5F96B12EBAA56ED894DB" xlink:to="lab_us-gaap_CostMethodInvestmentsFairValueDisclosure_3ACEA8D8182A5F96B12EBAA56ED894DB" xlink:type="arc" />
    <link:label id="lab_gbci_FinancialAssetsFairValueDisclosure_2719762AA3AB1819E98C759877C2A5C9_totalLabel_en-US" xlink:label="lab_gbci_FinancialAssetsFairValueDisclosure_6037D4D2369154C0BA4E55D1A1DEAE9D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total financial assets</link:label>
    <link:label id="lab_gbci_FinancialAssetsFairValueDisclosure_2719762AA3AB1819E98C759877C2A5C9_label_en-US" xlink:label="lab_gbci_FinancialAssetsFairValueDisclosure_6037D4D2369154C0BA4E55D1A1DEAE9D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Assets Fair Value Disclosure</link:label>
    <link:label id="lab_gbci_FinancialAssetsFairValueDisclosure_2719762AA3AB1819E98C759877C2A5C9_documentation_en-US" xlink:label="lab_gbci_FinancialAssetsFairValueDisclosure_6037D4D2369154C0BA4E55D1A1DEAE9D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Financial assets fair value disclosure.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FinancialAssetsFairValueDisclosure" xlink:label="loc_gbci_FinancialAssetsFairValueDisclosure_6037D4D2369154C0BA4E55D1A1DEAE9D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FinancialAssetsFairValueDisclosure_6037D4D2369154C0BA4E55D1A1DEAE9D" xlink:to="lab_gbci_FinancialAssetsFairValueDisclosure_6037D4D2369154C0BA4E55D1A1DEAE9D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_DA443CFCC259024E3366759877C28C2A_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_496D66A9C89C590D81866423C0A8E544" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financial Liabilities</link:label>
    <link:label id="lab_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_DA443CFCC259024E3366759877C28C2A_label_en-US" xlink:label="lab_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_496D66A9C89C590D81866423C0A8E544" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract" xlink:label="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_496D66A9C89C590D81866423C0A8E544" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_496D66A9C89C590D81866423C0A8E544" xlink:to="lab_us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract_496D66A9C89C590D81866423C0A8E544" xlink:type="arc" />
    <link:label id="lab_us-gaap_DepositsFairValueDisclosure_149212E4DEC57B8522E0759877C320C8_terseLabel_en-US" xlink:label="lab_us-gaap_DepositsFairValueDisclosure_F803CDB41EF15AC0BF0C972EFD09556D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:label id="lab_us-gaap_DepositsFairValueDisclosure_149212E4DEC57B8522E0759877C320C8_label_en-US" xlink:label="lab_us-gaap_DepositsFairValueDisclosure_F803CDB41EF15AC0BF0C972EFD09556D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepositsFairValueDisclosure" xlink:label="loc_us-gaap_DepositsFairValueDisclosure_F803CDB41EF15AC0BF0C972EFD09556D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepositsFairValueDisclosure_F803CDB41EF15AC0BF0C972EFD09556D" xlink:to="lab_us-gaap_DepositsFairValueDisclosure_F803CDB41EF15AC0BF0C972EFD09556D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure_B11A1D54E998CAF280D2759877C3238E_terseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure_327CDE984F6655AA9ADA58AA250FB858" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FHLB advances</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure_B11A1D54E998CAF280D2759877C3238E_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure_327CDE984F6655AA9ADA58AA250FB858" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank Borrowings, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure" xlink:label="loc_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure_327CDE984F6655AA9ADA58AA250FB858" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure_327CDE984F6655AA9ADA58AA250FB858" xlink:to="lab_us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure_327CDE984F6655AA9ADA58AA250FB858" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_577E42D304ADF47FF823759877C3DBD2_terseLabel_en-US" xlink:label="lab_us-gaap_FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_414F7CCCE67D575EACEA5CA538B6731E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repurchase agreements and other borrowed funds</link:label>
    <link:label id="lab_us-gaap_FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_577E42D304ADF47FF823759877C3DBD2_label_en-US" xlink:label="lab_us-gaap_FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_414F7CCCE67D575EACEA5CA538B6731E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure" xlink:label="loc_us-gaap_FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_414F7CCCE67D575EACEA5CA538B6731E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_414F7CCCE67D575EACEA5CA538B6731E" xlink:to="lab_us-gaap_FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure_414F7CCCE67D575EACEA5CA538B6731E" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations_F6C9ABF376392AF510C5759877C33E31_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations_12AF7D85DD2C511B907917416E893D27" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subordinated debentures</link:label>
    <link:label id="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations_F6C9ABF376392AF510C5759877C33E31_label_en-US" xlink:label="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations_12AF7D85DD2C511B907917416E893D27" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subordinated Debt Obligations, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations_12AF7D85DD2C511B907917416E893D27" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations_12AF7D85DD2C511B907917416E893D27" xlink:to="lab_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations_12AF7D85DD2C511B907917416E893D27" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_DB57ACB01B46F27BE816759877C3DFC7_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_DEEE269FA19259F3A6D52CDF83D5723B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued interest payable</link:label>
    <link:label id="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_DB57ACB01B46F27BE816759877C3DFC7_label_en-US" xlink:label="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_DEEE269FA19259F3A6D52CDF83D5723B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts Payable and Accrued Liabilities, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_DEEE269FA19259F3A6D52CDF83D5723B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_DEEE269FA19259F3A6D52CDF83D5723B" xlink:to="lab_us-gaap_AccountsPayableAndAccruedLiabilitiesFairValueDisclosure_DEEE269FA19259F3A6D52CDF83D5723B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancialLiabilitiesFairValueDisclosure_099118DE9167E0222E81759877C399D3_totalLabel_en-US" xlink:label="lab_us-gaap_FinancialLiabilitiesFairValueDisclosure_899E676638715E88BB47DB89794C65E8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total financial liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancialLiabilitiesFairValueDisclosure" xlink:label="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_899E676638715E88BB47DB89794C65E8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialLiabilitiesFairValueDisclosure_899E676638715E88BB47DB89794C65E8" xlink:to="lab_us-gaap_FinancialLiabilitiesFairValueDisclosure_899E676638715E88BB47DB89794C65E8" xlink:type="arc" />
    <link:label id="lab_gbci_DepositsTextualAbstract_2644F06558AF8A265C20759878707FFD_verboseLabel_en-US" xlink:label="lab_gbci_DepositsTextualAbstract_42EC16E17FB955A1B2164024618D70A2" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:label id="lab_gbci_DepositsTextualAbstract_2644F06558AF8A265C20759878707FFD_label_en-US" xlink:label="lab_gbci_DepositsTextualAbstract_42EC16E17FB955A1B2164024618D70A2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposits (Textual) [Abstract]</link:label>
    <link:label id="lab_gbci_DepositsTextualAbstract_2644F06558AF8A265C20759878707FFD_documentation_en-US" xlink:label="lab_gbci_DepositsTextualAbstract_42EC16E17FB955A1B2164024618D70A2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposits textual.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DepositsTextualAbstract" xlink:label="loc_gbci_DepositsTextualAbstract_42EC16E17FB955A1B2164024618D70A2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DepositsTextualAbstract_42EC16E17FB955A1B2164024618D70A2" xlink:to="lab_gbci_DepositsTextualAbstract_42EC16E17FB955A1B2164024618D70A2" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashFDICInsuredAmount_226E2A9FC15580487C11759878704D41_terseLabel_en-US" xlink:label="lab_us-gaap_CashFDICInsuredAmount_CF5A16791A27542FB34BA6EAE0101B52" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">FDIC Insurance limit</link:label>
    <link:label id="lab_us-gaap_CashFDICInsuredAmount_226E2A9FC15580487C11759878704D41_label_en-US" xlink:label="lab_us-gaap_CashFDICInsuredAmount_CF5A16791A27542FB34BA6EAE0101B52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash, FDIC Insured Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashFDICInsuredAmount" xlink:label="loc_us-gaap_CashFDICInsuredAmount_CF5A16791A27542FB34BA6EAE0101B52" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFDICInsuredAmount_CF5A16791A27542FB34BA6EAE0101B52" xlink:to="lab_us-gaap_CashFDICInsuredAmount_CF5A16791A27542FB34BA6EAE0101B52" xlink:type="arc" />
    <link:label id="lab_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_213CC15C843952765021759878712539_terseLabel_en-US" xlink:label="lab_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_E524A842919E5611B6F44D4558F5CE19" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Time deposits that meet or exceed FDIC Insurance limit</link:label>
    <link:label id="lab_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_213CC15C843952765021759878712539_label_en-US" xlink:label="lab_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_E524A842919E5611B6F44D4558F5CE19" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Time Deposits That Meet or Exceed FDIC Insurance Limit</link:label>
    <link:label id="lab_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_213CC15C843952765021759878712539_documentation_en-US" xlink:label="lab_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_E524A842919E5611B6F44D4558F5CE19" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The aggregate amount of domestic time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations that meet or exceed the FDIC Insurance limit.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit" xlink:label="loc_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_E524A842919E5611B6F44D4558F5CE19" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_E524A842919E5611B6F44D4558F5CE19" xlink:to="lab_gbci_TimeDepositsThatMeetorExceedFDICInsuranceLimit_E524A842919E5611B6F44D4558F5CE19" xlink:type="arc" />
    <link:label id="lab_gbci_OverdraftDemandDepositsReclassifiedAsLoans_941D3F61FBBE5AEE89A775987871D181_verboseLabel_en-US" xlink:label="lab_gbci_OverdraftDemandDepositsReclassifiedAsLoans_2CA4BEC719B45C109ABA0EC56CBE0961" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Overdraft demand deposits reclassified as loans</link:label>
    <link:label id="lab_gbci_OverdraftDemandDepositsReclassifiedAsLoans_941D3F61FBBE5AEE89A775987871D181_label_en-US" xlink:label="lab_gbci_OverdraftDemandDepositsReclassifiedAsLoans_2CA4BEC719B45C109ABA0EC56CBE0961" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Overdraft Demand Deposits Reclassified as Loans</link:label>
    <link:label id="lab_gbci_OverdraftDemandDepositsReclassifiedAsLoans_941D3F61FBBE5AEE89A775987871D181_documentation_en-US" xlink:label="lab_gbci_OverdraftDemandDepositsReclassifiedAsLoans_2CA4BEC719B45C109ABA0EC56CBE0961" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Overdraft demand deposits reclassified as loans.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OverdraftDemandDepositsReclassifiedAsLoans" xlink:label="loc_gbci_OverdraftDemandDepositsReclassifiedAsLoans_2CA4BEC719B45C109ABA0EC56CBE0961" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OverdraftDemandDepositsReclassifiedAsLoans_2CA4BEC719B45C109ABA0EC56CBE0961" xlink:to="lab_gbci_OverdraftDemandDepositsReclassifiedAsLoans_2CA4BEC719B45C109ABA0EC56CBE0961" xlink:type="arc" />
    <link:label id="lab_us-gaap_RelatedPartyDepositLiabilities_618CD50FA771AC634C0675987871EECB_verboseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyDepositLiabilities_4906C45122FA550A816E39825E01E7A5" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deposits with related parties</link:label>
    <link:label id="lab_us-gaap_RelatedPartyDepositLiabilities_618CD50FA771AC634C0675987871EECB_label_en-US" xlink:label="lab_us-gaap_RelatedPartyDepositLiabilities_4906C45122FA550A816E39825E01E7A5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Related Party Deposit Liabilities</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RelatedPartyDepositLiabilities" xlink:label="loc_us-gaap_RelatedPartyDepositLiabilities_4906C45122FA550A816E39825E01E7A5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyDepositLiabilities_4906C45122FA550A816E39825E01E7A5" xlink:to="lab_us-gaap_RelatedPartyDepositLiabilities_4906C45122FA550A816E39825E01E7A5" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_00C5C9963E55AE4E3AB27598790174ED_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_78712109F763544FA5618F78A3298774" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Financing Receivable, Allowance for Credit Losses [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_00C5C9963E55AE4E3AB27598790174ED_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_78712109F763544FA5618F78A3298774" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Financing Receivable, Allowance for Credit Losses [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_78712109F763544FA5618F78A3298774" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_78712109F763544FA5618F78A3298774" xlink:to="lab_us-gaap_ScheduleOfFinancingReceivableAllowanceForCreditLossesTable_78712109F763544FA5618F78A3298774" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_34C0EE546858E565B69A759879025809_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_436476135D925A1587F0B7884526692B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses [Line Items]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_34C0EE546858E565B69A759879025809_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_436476135D925A1587F0B7884526692B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_436476135D925A1587F0B7884526692B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_436476135D925A1587F0B7884526692B" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesLineItems_436476135D925A1587F0B7884526692B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_B9F6724DCD63DD5000FA75987902FB3F_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_E7FD9B5E8FB25FD189B4AE3647600EFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allowance for loan and lease losses</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_B9F6724DCD63DD5000FA75987902FB3F_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_E7FD9B5E8FB25FD189B4AE3647600EFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses [Roll Forward]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_E7FD9B5E8FB25FD189B4AE3647600EFD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_E7FD9B5E8FB25FD189B4AE3647600EFD" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRollForward_E7FD9B5E8FB25FD189B4AE3647600EFD" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLosses_09DDEE078DE6EBD5BE397598790230C0_periodStartLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLosses_2F7D3A6435C354B28F1AE0EA2619F980" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance at beginning of period</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLosses_09DDEE078DE6EBD5BE397598790230C0_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLosses_2F7D3A6435C354B28F1AE0EA2619F980" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_2F7D3A6435C354B28F1AE0EA2619F980" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_2F7D3A6435C354B28F1AE0EA2619F980" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLosses_2F7D3A6435C354B28F1AE0EA2619F980" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_25C35A5E5D707ECC493875987902A8F3_negatedLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_CE87879193155501B700496112C9A585" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Charge-offs</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_25C35A5E5D707ECC493875987902A8F3_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_CE87879193155501B700496112C9A585" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses, Write-downs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_CE87879193155501B700496112C9A585" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_CE87879193155501B700496112C9A585" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs_CE87879193155501B700496112C9A585" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_5306442F80C8FCB14E98759879027906_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_04C9BED4C0F45FD1BEE17719B0C2867F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Recoveries</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_5306442F80C8FCB14E98759879027906_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_04C9BED4C0F45FD1BEE17719B0C2867F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses, Recovery</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_04C9BED4C0F45FD1BEE17719B0C2867F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_04C9BED4C0F45FD1BEE17719B0C2867F" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery_04C9BED4C0F45FD1BEE17719B0C2867F" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLosses_22E4FBF3FF22CFE4BDAA75987903206C_periodEndLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLosses_328AEC4F45405A478F4AA20141A8411E" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance at end of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLosses" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_328AEC4F45405A478F4AA20141A8411E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLosses_328AEC4F45405A478F4AA20141A8411E" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLosses_328AEC4F45405A478F4AA20141A8411E" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_167BC259EF31E9A4964975987855FD52_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_4073AA0955AF5D789D3600EAA56C8A4A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Capital adequacy guidelines and compliance</link:label>
    <link:label id="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_167BC259EF31E9A4964975987855FD52_label_en-US" xlink:label="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_4073AA0955AF5D789D3600EAA56C8A4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock" xlink:label="loc_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_4073AA0955AF5D789D3600EAA56C8A4A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_4073AA0955AF5D789D3600EAA56C8A4A" xlink:to="lab_us-gaap_ScheduleOfComplianceWithRegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_4073AA0955AF5D789D3600EAA56C8A4A" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAbstract_D8F20082C49827EC4B4075987718F15A_verboseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAbstract_D187820CDDC25321BB4E83696233A70B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">FHLB Advances</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAbstract_D8F20082C49827EC4B4075987718F15A_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAbstract_D187820CDDC25321BB4E83696233A70B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Fiscal Year Maturity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAbstract" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAbstract_D187820CDDC25321BB4E83696233A70B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAbstract_D187820CDDC25321BB4E83696233A70B" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAbstract_D187820CDDC25321BB4E83696233A70B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate_50164AA22871D536F23375987718E73B_verboseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate_2B5FDAC268E35A03BBD5378E61727B7A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maturing within one year, Amount</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate_50164AA22871D536F23375987718E73B_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate_2B5FDAC268E35A03BBD5378E61727B7A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate_2B5FDAC268E35A03BBD5378E61727B7A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate_2B5FDAC268E35A03BBD5378E61727B7A" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate_2B5FDAC268E35A03BBD5378E61727B7A" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate_81F97AAEF799CDBE8FDA75987718E540_verboseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate_29EF3ABD2ED354F19C77E979337C3E9A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maturing within one year, Weighted rate</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate_81F97AAEF799CDBE8FDA75987718E540_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate_29EF3ABD2ED354F19C77E979337C3E9A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate of Amounts Due within One Year of Balance Sheet Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate_29EF3ABD2ED354F19C77E979337C3E9A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate_29EF3ABD2ED354F19C77E979337C3E9A" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOfAmountsDueWithinOneYearOfBalanceSheetDate_29EF3ABD2ED354F19C77E979337C3E9A" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate_684CEA78F379AC92A19275987718D86F_terseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate_30235DD8D2045158873035281DDD0C8A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturing one year through two years, Amount</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate_684CEA78F379AC92A19275987718D86F_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate_30235DD8D2045158873035281DDD0C8A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Two</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate_30235DD8D2045158873035281DDD0C8A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate_30235DD8D2045158873035281DDD0C8A" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromOneToTwoYearsOfBalanceSheetDate_30235DD8D2045158873035281DDD0C8A" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate_3BDF295CD7A0191F952475987718730F_terseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate_94EACE5D169B5FC884738338DE97A25E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturing one year through two years, Weighted rate</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate_3BDF295CD7A0191F952475987718730F_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate_94EACE5D169B5FC884738338DE97A25E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, One to Two Years from Balance Sheet Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate_94EACE5D169B5FC884738338DE97A25E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate_94EACE5D169B5FC884738338DE97A25E" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateOneToTwoYearsFromBalanceSheetDate_94EACE5D169B5FC884738338DE97A25E" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate_322F95E0456709ECC250759877187DD2_terseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate_CB90D21D65E85389A957F15FFDBABDB0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturing two years through three years, Amount</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate_322F95E0456709ECC250759877187DD2_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate_CB90D21D65E85389A957F15FFDBABDB0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Three</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate_CB90D21D65E85389A957F15FFDBABDB0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate_CB90D21D65E85389A957F15FFDBABDB0" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromTwoToThreeYearsOfBalanceSheetDate_CB90D21D65E85389A957F15FFDBABDB0" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate_92C5676E9AD993A9546C759877189302_verboseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate_4A1D9E7E2B8855F6888A3F2AD9F494B4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maturing two years through three years, Weighted rate</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate_92C5676E9AD993A9546C759877189302_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate_4A1D9E7E2B8855F6888A3F2AD9F494B4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Two to Three Years from Balance Sheet Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate_4A1D9E7E2B8855F6888A3F2AD9F494B4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate_4A1D9E7E2B8855F6888A3F2AD9F494B4" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateTwoToThreeYearsFromBalanceSheetDate_4A1D9E7E2B8855F6888A3F2AD9F494B4" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate_89D47FCEA3B3F461A6E2759877194575_verboseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate_9A4EDF9186CF5254B26B6A7BCA040D05" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maturing three years through four years, Amount</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate_89D47FCEA3B3F461A6E2759877194575_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate_9A4EDF9186CF5254B26B6A7BCA040D05" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Four</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate_9A4EDF9186CF5254B26B6A7BCA040D05" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate_9A4EDF9186CF5254B26B6A7BCA040D05" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromThreeToFourYearsOfBalanceSheetDate_9A4EDF9186CF5254B26B6A7BCA040D05" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate_04AA26CDF9E556C6A4CD75987719FFB2_verboseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate_B54A21E782F055C2BBBD04CE202103D3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maturing three years through four years, Weighted rate</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate_04AA26CDF9E556C6A4CD75987719FFB2_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate_B54A21E782F055C2BBBD04CE202103D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Three to Four Years from Balance Sheet Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate_B54A21E782F055C2BBBD04CE202103D3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate_B54A21E782F055C2BBBD04CE202103D3" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateThreeToFourYearsFromBalanceSheetDate_B54A21E782F055C2BBBD04CE202103D3" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate_CFD9666389740476B1B375987719562C_terseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate_9004DD2EF6135DF29D7E61467AE5CE42" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maturing four years through five years, Amount</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate_CFD9666389740476B1B375987719562C_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate_9004DD2EF6135DF29D7E61467AE5CE42" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due in Year Five</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate_9004DD2EF6135DF29D7E61467AE5CE42" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate_9004DD2EF6135DF29D7E61467AE5CE42" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueFromFourToFiveYearsOfBalanceSheetDate_9004DD2EF6135DF29D7E61467AE5CE42" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate_179A1855AD0B6D2E98EA75987719409C_verboseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate_B28ABD4EFF775F6190D9C48FE1D3667F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maturing four years through five years, Weighted rate</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate_179A1855AD0B6D2E98EA75987719409C_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate_B28ABD4EFF775F6190D9C48FE1D3667F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, Four to Five Years from Balance Sheet Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate_B28ABD4EFF775F6190D9C48FE1D3667F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate_B28ABD4EFF775F6190D9C48FE1D3667F" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateFourToFiveYearsFromBalanceSheetDate_B28ABD4EFF775F6190D9C48FE1D3667F" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate_CC0F93B8270EEBA85510759877198DA3_terseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate_E0B8B8BA48805805BAD63D619A6080BA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter, Amount</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate_CC0F93B8270EEBA85510759877198DA3_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate_E0B8B8BA48805805BAD63D619A6080BA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Due after Year Five</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate_E0B8B8BA48805805BAD63D619A6080BA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate_E0B8B8BA48805805BAD63D619A6080BA" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueAfterFiveYearsOfBalanceSheetDate_E0B8B8BA48805805BAD63D619A6080BA" xlink:type="arc" />
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate_6142633763FC0F73D73E75987719AF2F_verboseLabel_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate_E97E380529DB59D1BDCF65338B718F58" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Thereafter, Weighted rate</link:label>
    <link:label id="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate_6142633763FC0F73D73E75987719AF2F_label_en-US" xlink:label="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate_E97E380529DB59D1BDCF65338B718F58" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate, after Five Years from Balance Sheet Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate" xlink:label="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate_E97E380529DB59D1BDCF65338B718F58" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate_E97E380529DB59D1BDCF65338B718F58" xlink:to="lab_us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRateAfterFiveYearsFromBalanceSheetDate_E97E380529DB59D1BDCF65338B718F58" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdvancesFromFederalHomeLoanBanks_FDA2C5A1934A894070AE75987719F539_totalLabel_en-US" xlink:label="lab_us-gaap_AdvancesFromFederalHomeLoanBanks_7099EE3DCC6A58849F2A7B0D1D195B5B" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvancesFromFederalHomeLoanBanks" xlink:label="loc_us-gaap_AdvancesFromFederalHomeLoanBanks_7099EE3DCC6A58849F2A7B0D1D195B5B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdvancesFromFederalHomeLoanBanks_7099EE3DCC6A58849F2A7B0D1D195B5B" xlink:to="lab_us-gaap_AdvancesFromFederalHomeLoanBanks_7099EE3DCC6A58849F2A7B0D1D195B5B" xlink:type="arc" />
    <link:label id="lab_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_71B6DEF73AE8C46EE5157598771901D6_verboseLabel_en-US" xlink:label="lab_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_092D7D94698D5CC6B5618A5ACB566C28" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total, Weighted rate</link:label>
    <link:label id="lab_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_71B6DEF73AE8C46EE5157598771901D6_label_en-US" xlink:label="lab_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_092D7D94698D5CC6B5618A5ACB566C28" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank, Advances, Maturities Summary, Average Interest Rate</link:label>
    <link:label id="lab_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_71B6DEF73AE8C46EE5157598771901D6_documentation_en-US" xlink:label="lab_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_092D7D94698D5CC6B5618A5ACB566C28" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The weighted average interest rate applicable to the Federal Home Loan Bank advances.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate" xlink:label="loc_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_092D7D94698D5CC6B5618A5ACB566C28" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_092D7D94698D5CC6B5618A5ACB566C28" xlink:to="lab_gbci_FederalHomeLoanBankAdvancesMaturitiesSummaryAverageInterestRate_092D7D94698D5CC6B5618A5ACB566C28" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_EB873F49E5F68B32A750AF8204615F87_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_EB873F49E5F68B32A750AF8204615F87" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Summary of loans receivable</link:label>
    <link:label id="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_EB873F49E5F68B32A750AF8204615F87_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_EB873F49E5F68B32A750AF8204615F87" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_EB873F49E5F68B32A750AF8204615F87" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_EB873F49E5F68B32A750AF8204615F87" xlink:to="lab_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock_EB873F49E5F68B32A750AF8204615F87" xlink:type="arc" />
    <link:label id="lab_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_F95D6BC3C055CC75FC47AF820461F1C0_verboseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_F95D6BC3C055CC75FC47AF820461F1C0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of the activity in the ALLL</link:label>
    <link:label id="lab_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_F95D6BC3C055CC75FC47AF820461F1C0_label_en-US" xlink:label="lab_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_F95D6BC3C055CC75FC47AF820461F1C0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Allowance for Credit Losses on Financing Receivables [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock" xlink:label="loc_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_F95D6BC3C055CC75FC47AF820461F1C0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_F95D6BC3C055CC75FC47AF820461F1C0" xlink:to="lab_us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock_F95D6BC3C055CC75FC47AF820461F1C0" xlink:type="arc" />
    <link:label id="lab_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69_verboseLabel_en-US" xlink:label="lab_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of recorded investment in loans and the balance in the ALLL</link:label>
    <link:label id="lab_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69_label_en-US" xlink:label="lab_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Summary of Recorded Investment in Loans and ALLL on Portfolio Class Basis [Table Text Block]</link:label>
    <link:label id="lab_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69_documentation_en-US" xlink:label="lab_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Summary of recorded investment in loans and ALLL on a portfolio class basis.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock" xlink:label="loc_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69" xlink:to="lab_gbci_SummaryOfRecordedInvestmentInLoansAndAlllOnPortfolioClassBasisTableTextBlock_39ACB9BFB112027769BAAF8204615A69" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivablesTableTextBlock_686A345FDD8B96C7F4ABAF820461E8D0_verboseLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivablesTableTextBlock_686A345FDD8B96C7F4ABAF820461E8D0" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of the impaired loans</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivablesTableTextBlock_686A345FDD8B96C7F4ABAF820461E8D0_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivablesTableTextBlock_686A345FDD8B96C7F4ABAF820461E8D0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivables [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivablesTableTextBlock" xlink:label="loc_us-gaap_ImpairedFinancingReceivablesTableTextBlock_686A345FDD8B96C7F4ABAF820461E8D0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivablesTableTextBlock_686A345FDD8B96C7F4ABAF820461E8D0" xlink:to="lab_us-gaap_ImpairedFinancingReceivablesTableTextBlock_686A345FDD8B96C7F4ABAF820461E8D0" xlink:type="arc" />
    <link:label id="lab_us-gaap_PastDueFinancingReceivablesTableTextBlock_759EB6587F2D31617A14AF82046169BE_verboseLabel_en-US" xlink:label="lab_us-gaap_PastDueFinancingReceivablesTableTextBlock_759EB6587F2D31617A14AF82046169BE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loan portfolio aging analysis</link:label>
    <link:label id="lab_us-gaap_PastDueFinancingReceivablesTableTextBlock_759EB6587F2D31617A14AF82046169BE_label_en-US" xlink:label="lab_us-gaap_PastDueFinancingReceivablesTableTextBlock_759EB6587F2D31617A14AF82046169BE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Past Due Financing Receivables [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PastDueFinancingReceivablesTableTextBlock" xlink:label="loc_us-gaap_PastDueFinancingReceivablesTableTextBlock_759EB6587F2D31617A14AF82046169BE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PastDueFinancingReceivablesTableTextBlock_759EB6587F2D31617A14AF82046169BE" xlink:to="lab_us-gaap_PastDueFinancingReceivablesTableTextBlock_759EB6587F2D31617A14AF82046169BE" xlink:type="arc" />
    <link:label id="lab_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_7B0391C9AFE9DAF16C50AF820461260E_verboseLabel_en-US" xlink:label="lab_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_7B0391C9AFE9DAF16C50AF820461260E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of TDRs</link:label>
    <link:label id="lab_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_7B0391C9AFE9DAF16C50AF820461260E_label_en-US" xlink:label="lab_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_7B0391C9AFE9DAF16C50AF820461260E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Troubled Debt Restructurings on Financing Receivables [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock" xlink:label="loc_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_7B0391C9AFE9DAF16C50AF820461260E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_7B0391C9AFE9DAF16C50AF820461260E" xlink:to="lab_us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock_7B0391C9AFE9DAF16C50AF820461260E" xlink:type="arc" />
    <link:label id="lab_us-gaap_VariableInterestEntityDisclosureTextBlock_EEBA18C2C8284BE892E1759878897F2B_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityDisclosureTextBlock_131671C95984599598D282AF7ABC6B06" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Entities</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityDisclosureTextBlock_EEBA18C2C8284BE892E1759878897F2B_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityDisclosureTextBlock_131671C95984599598D282AF7ABC6B06" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_VariableInterestEntityDisclosureTextBlock" xlink:label="loc_us-gaap_VariableInterestEntityDisclosureTextBlock_131671C95984599598D282AF7ABC6B06" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityDisclosureTextBlock_131671C95984599598D282AF7ABC6B06" xlink:to="lab_us-gaap_VariableInterestEntityDisclosureTextBlock_131671C95984599598D282AF7ABC6B06" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCommitmentsAbstract_07A8728625FEC5177E58A4BB42C91A6C_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitmentsAbstract_07A8728625FEC5177E58A4BB42C91A6C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Outstanding commitments</link:label>
    <link:label id="lab_us-gaap_OtherCommitmentsAbstract_07A8728625FEC5177E58A4BB42C91A6C_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsAbstract_07A8728625FEC5177E58A4BB42C91A6C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitments [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitmentsAbstract" xlink:label="loc_us-gaap_OtherCommitmentsAbstract_07A8728625FEC5177E58A4BB42C91A6C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsAbstract_07A8728625FEC5177E58A4BB42C91A6C" xlink:to="lab_us-gaap_OtherCommitmentsAbstract_07A8728625FEC5177E58A4BB42C91A6C" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCommitmentsTable_843D44BAE39080B19484A4BB42C950E7_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitmentsTable_843D44BAE39080B19484A4BB42C950E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Commitments [Table]</link:label>
    <link:label id="lab_us-gaap_OtherCommitmentsTable_843D44BAE39080B19484A4BB42C950E7_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsTable_843D44BAE39080B19484A4BB42C950E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitments [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitmentsTable" xlink:label="loc_us-gaap_OtherCommitmentsTable_843D44BAE39080B19484A4BB42C950E7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsTable_843D44BAE39080B19484A4BB42C950E7" xlink:to="lab_us-gaap_OtherCommitmentsTable_843D44BAE39080B19484A4BB42C950E7" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCommitmentsAxis_629E132C8DA48609A4FFA4BB42C96FE8_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitmentsAxis_629E132C8DA48609A4FFA4BB42C96FE8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Commitments [Axis]</link:label>
    <link:label id="lab_us-gaap_OtherCommitmentsAxis_629E132C8DA48609A4FFA4BB42C96FE8_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsAxis_629E132C8DA48609A4FFA4BB42C96FE8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitments [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitmentsAxis" xlink:label="loc_us-gaap_OtherCommitmentsAxis_629E132C8DA48609A4FFA4BB42C96FE8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsAxis_629E132C8DA48609A4FFA4BB42C96FE8" xlink:to="lab_us-gaap_OtherCommitmentsAxis_629E132C8DA48609A4FFA4BB42C96FE8" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCommitmentsDomain_7D703DE116201C0D4F75A4BB42C9B098_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitmentsDomain_7D703DE116201C0D4F75A4BB42C9B098" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Commitments [Domain]</link:label>
    <link:label id="lab_us-gaap_OtherCommitmentsDomain_7D703DE116201C0D4F75A4BB42C9B098_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsDomain_7D703DE116201C0D4F75A4BB42C9B098" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitments [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitmentsDomain" xlink:label="loc_us-gaap_OtherCommitmentsDomain_7D703DE116201C0D4F75A4BB42C9B098" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsDomain_7D703DE116201C0D4F75A4BB42C9B098" xlink:to="lab_us-gaap_OtherCommitmentsDomain_7D703DE116201C0D4F75A4BB42C9B098" xlink:type="arc" />
    <link:label id="lab_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27_terseLabel_en-US" xlink:label="lab_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unused Lines of Credit</link:label>
    <link:label id="lab_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27_label_en-US" xlink:label="lab_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitment to Extend Credit [Member]</link:label>
    <link:label id="lab_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27_documentation_en-US" xlink:label="lab_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Commitment to Extend Credit [Member]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CommitmenttoExtendCreditMember" xlink:label="loc_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27" xlink:to="lab_gbci_CommitmenttoExtendCreditMember_F27A6E2E0CB0090B4B31A4BB42C99C27" xlink:type="arc" />
    <link:label id="lab_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4_terseLabel_en-US" xlink:label="lab_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Letters of Credit</link:label>
    <link:label id="lab_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4_label_en-US" xlink:label="lab_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Letters of Credit [Member]</link:label>
    <link:label id="lab_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4_documentation_en-US" xlink:label="lab_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">An irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_LettersofCreditMember" xlink:label="loc_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4" xlink:to="lab_gbci_LettersofCreditMember_8505646B36151D331803A4BB42C930F4" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCommitmentsLineItems_6B6C7012BB1F43844C95A4BB42C977EC_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitmentsLineItems_6B6C7012BB1F43844C95A4BB42C977EC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Outstanding Commitments</link:label>
    <link:label id="lab_us-gaap_OtherCommitmentsLineItems_6B6C7012BB1F43844C95A4BB42C977EC_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsLineItems_6B6C7012BB1F43844C95A4BB42C977EC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitments [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitmentsLineItems" xlink:label="loc_us-gaap_OtherCommitmentsLineItems_6B6C7012BB1F43844C95A4BB42C977EC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsLineItems_6B6C7012BB1F43844C95A4BB42C977EC" xlink:to="lab_us-gaap_OtherCommitmentsLineItems_6B6C7012BB1F43844C95A4BB42C977EC" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCommitment_A2B39CECC052FDC6208AA4BB42C9204B_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitment_A2B39CECC052FDC6208AA4BB42C9204B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Outstanding commitments</link:label>
    <link:label id="lab_us-gaap_OtherCommitment_A2B39CECC052FDC6208AA4BB42C9204B_label_en-US" xlink:label="lab_us-gaap_OtherCommitment_A2B39CECC052FDC6208AA4BB42C9204B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Commitment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCommitment" xlink:label="loc_us-gaap_OtherCommitment_A2B39CECC052FDC6208AA4BB42C9204B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitment_A2B39CECC052FDC6208AA4BB42C9204B" xlink:to="lab_us-gaap_OtherCommitment_A2B39CECC052FDC6208AA4BB42C9204B" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeStatementAbstract_568B795C26092C59E6EE9658E68D6007_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract_568B795C26092C59E6EE9658E68D6007" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="loc_us-gaap_IncomeStatementAbstract_568B795C26092C59E6EE9658E68D6007" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract_568B795C26092C59E6EE9658E68D6007" xlink:to="lab_us-gaap_IncomeStatementAbstract_568B795C26092C59E6EE9658E68D6007" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestAndDividendIncomeOperatingAbstract_101313425421C93A8A249658E68D4C92_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeOperatingAbstract_101313425421C93A8A249658E68D4C92" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest Income</link:label>
    <link:label id="lab_us-gaap_InterestAndDividendIncomeOperatingAbstract_101313425421C93A8A249658E68D4C92_label_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeOperatingAbstract_101313425421C93A8A249658E68D4C92" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest and Dividend Income, Operating [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndDividendIncomeOperatingAbstract" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperatingAbstract_101313425421C93A8A249658E68D4C92" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperatingAbstract_101313425421C93A8A249658E68D4C92" xlink:to="lab_us-gaap_InterestAndDividendIncomeOperatingAbstract_101313425421C93A8A249658E68D4C92" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestAndDividendIncomeSecurities_F30DE5285260339CC7939658E68DC026_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeSecurities_F30DE5285260339CC7939658E68DC026" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investment securities</link:label>
    <link:label id="lab_us-gaap_InterestAndDividendIncomeSecurities_F30DE5285260339CC7939658E68DC026_label_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeSecurities_F30DE5285260339CC7939658E68DC026" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest and Dividend Income, Securities, Operating</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndDividendIncomeSecurities" xlink:label="loc_us-gaap_InterestAndDividendIncomeSecurities_F30DE5285260339CC7939658E68DC026" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestAndDividendIncomeSecurities_F30DE5285260339CC7939658E68DC026" xlink:to="lab_us-gaap_InterestAndDividendIncomeSecurities_F30DE5285260339CC7939658E68DC026" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate_1EA1E9583466483E0AF59658E68E0AFE_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate_1EA1E9583466483E0AF59658E68E0AFE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Residential real estate loans</link:label>
    <link:label id="lab_us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate_1EA1E9583466483E0AF59658E68E0AFE_label_en-US" xlink:label="lab_us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate_1EA1E9583466483E0AF59658E68E0AFE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest and Fee Income, Loans, Consumer, Real Estate</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate_1EA1E9583466483E0AF59658E68E0AFE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate_1EA1E9583466483E0AF59658E68E0AFE" xlink:to="lab_us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate_1EA1E9583466483E0AF59658E68E0AFE" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestAndFeeIncomeLoansCommercial_7AEBB9D3E44DD9FA81AE9658E68E3617_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestAndFeeIncomeLoansCommercial_7AEBB9D3E44DD9FA81AE9658E68E3617" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Commercial loans</link:label>
    <link:label id="lab_us-gaap_InterestAndFeeIncomeLoansCommercial_7AEBB9D3E44DD9FA81AE9658E68E3617_label_en-US" xlink:label="lab_us-gaap_InterestAndFeeIncomeLoansCommercial_7AEBB9D3E44DD9FA81AE9658E68E3617" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest and Fee Income, Loans, Commercial</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndFeeIncomeLoansCommercial" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansCommercial_7AEBB9D3E44DD9FA81AE9658E68E3617" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestAndFeeIncomeLoansCommercial_7AEBB9D3E44DD9FA81AE9658E68E3617" xlink:to="lab_us-gaap_InterestAndFeeIncomeLoansCommercial_7AEBB9D3E44DD9FA81AE9658E68E3617" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestAndFeeIncomeLoansOtherConsumer_D4C3E5B6EEF64D1311999658E68E2067_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestAndFeeIncomeLoansOtherConsumer_D4C3E5B6EEF64D1311999658E68E2067" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Consumer and other loans</link:label>
    <link:label id="lab_us-gaap_InterestAndFeeIncomeLoansOtherConsumer_D4C3E5B6EEF64D1311999658E68E2067_label_en-US" xlink:label="lab_us-gaap_InterestAndFeeIncomeLoansOtherConsumer_D4C3E5B6EEF64D1311999658E68E2067" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest and Fee Income, Loans, Other Consumer</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndFeeIncomeLoansOtherConsumer" xlink:label="loc_us-gaap_InterestAndFeeIncomeLoansOtherConsumer_D4C3E5B6EEF64D1311999658E68E2067" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestAndFeeIncomeLoansOtherConsumer_D4C3E5B6EEF64D1311999658E68E2067" xlink:to="lab_us-gaap_InterestAndFeeIncomeLoansOtherConsumer_D4C3E5B6EEF64D1311999658E68E2067" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestAndDividendIncomeOperating_199EC36E3646814D8EF09658E68E07F5_totalLabel_en-US" xlink:label="lab_us-gaap_InterestAndDividendIncomeOperating_199EC36E3646814D8EF09658E68E07F5" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total interest income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestAndDividendIncomeOperating" xlink:label="loc_us-gaap_InterestAndDividendIncomeOperating_199EC36E3646814D8EF09658E68E07F5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestAndDividendIncomeOperating_199EC36E3646814D8EF09658E68E07F5" xlink:to="lab_us-gaap_InterestAndDividendIncomeOperating_199EC36E3646814D8EF09658E68E07F5" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpenseAbstract_0DA70501564EBF70C8AD9658E68EAE9A_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseAbstract_0DA70501564EBF70C8AD9658E68EAE9A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Interest Expense</link:label>
    <link:label id="lab_us-gaap_InterestExpenseAbstract_0DA70501564EBF70C8AD9658E68EAE9A_label_en-US" xlink:label="lab_us-gaap_InterestExpenseAbstract_0DA70501564EBF70C8AD9658E68EAE9A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseAbstract" xlink:label="loc_us-gaap_InterestExpenseAbstract_0DA70501564EBF70C8AD9658E68EAE9A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseAbstract_0DA70501564EBF70C8AD9658E68EAE9A" xlink:to="lab_us-gaap_InterestExpenseAbstract_0DA70501564EBF70C8AD9658E68EAE9A" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpenseDeposits_502FEFEC1C6536AA55C99658E68E6774_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseDeposits_502FEFEC1C6536AA55C99658E68E6774" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:label id="lab_us-gaap_InterestExpenseDeposits_502FEFEC1C6536AA55C99658E68E6774_label_en-US" xlink:label="lab_us-gaap_InterestExpenseDeposits_502FEFEC1C6536AA55C99658E68E6774" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense, Deposits</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseDeposits" xlink:label="loc_us-gaap_InterestExpenseDeposits_502FEFEC1C6536AA55C99658E68E6774" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseDeposits_502FEFEC1C6536AA55C99658E68E6774" xlink:to="lab_us-gaap_InterestExpenseDeposits_502FEFEC1C6536AA55C99658E68E6774" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase_7F7C2181C88D8481F29C9658E68EE822_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase_7F7C2181C88D8481F29C9658E68EE822" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Securities sold under agreements to repurchase</link:label>
    <link:label id="lab_us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase_7F7C2181C88D8481F29C9658E68EE822_label_en-US" xlink:label="lab_us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase_7F7C2181C88D8481F29C9658E68EE822" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense, Securities Sold under Agreements to Repurchase</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase" xlink:label="loc_us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase_7F7C2181C88D8481F29C9658E68EE822" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase_7F7C2181C88D8481F29C9658E68EE822" xlink:to="lab_us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase_7F7C2181C88D8481F29C9658E68EE822" xlink:type="arc" />
    <link:label id="lab_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E_verboseLabel_en-US" xlink:label="lab_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Federal Home Loan Bank advances</link:label>
    <link:label id="lab_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E_label_en-US" xlink:label="lab_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense Federal Home Loan Bank Advance</link:label>
    <link:label id="lab_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E_documentation_en-US" xlink:label="lab_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Interest expense federal home loan bank advance.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_InterestExpenseFederalHomeLoanBankAdvance" xlink:label="loc_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E" xlink:to="lab_gbci_InterestExpenseFederalHomeLoanBankAdvance_794E507C2A294DAB3BB79658E68EEC7E" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpenseOther_2295070077C61D5D97849658E68E354B_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseOther_2295070077C61D5D97849658E68E354B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other borrowed funds</link:label>
    <link:label id="lab_us-gaap_InterestExpenseOther_2295070077C61D5D97849658E68E354B_label_en-US" xlink:label="lab_us-gaap_InterestExpenseOther_2295070077C61D5D97849658E68E354B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense, Other</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseOther" xlink:label="loc_us-gaap_InterestExpenseOther_2295070077C61D5D97849658E68E354B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseOther_2295070077C61D5D97849658E68E354B" xlink:to="lab_us-gaap_InterestExpenseOther_2295070077C61D5D97849658E68E354B" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpenseJuniorSubordinatedDebentures_5CDBA2661111E47C80E89658E68EEC62_verboseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseJuniorSubordinatedDebentures_5CDBA2661111E47C80E89658E68EEC62" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Subordinated debentures</link:label>
    <link:label id="lab_us-gaap_InterestExpenseJuniorSubordinatedDebentures_5CDBA2661111E47C80E89658E68EEC62_label_en-US" xlink:label="lab_us-gaap_InterestExpenseJuniorSubordinatedDebentures_5CDBA2661111E47C80E89658E68EEC62" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense, Junior Subordinated Debentures</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseJuniorSubordinatedDebentures" xlink:label="loc_us-gaap_InterestExpenseJuniorSubordinatedDebentures_5CDBA2661111E47C80E89658E68EEC62" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseJuniorSubordinatedDebentures_5CDBA2661111E47C80E89658E68EEC62" xlink:to="lab_us-gaap_InterestExpenseJuniorSubordinatedDebentures_5CDBA2661111E47C80E89658E68EEC62" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpense_F3252A8427EDBC3512069658E68ED8B9_totalLabel_en-US" xlink:label="lab_us-gaap_InterestExpense_F3252A8427EDBC3512069658E68ED8B9" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total interest expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_F3252A8427EDBC3512069658E68ED8B9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpense_F3252A8427EDBC3512069658E68ED8B9" xlink:to="lab_us-gaap_InterestExpense_F3252A8427EDBC3512069658E68ED8B9" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestIncomeExpenseNet_509ED0D1257C6FC76E1B9658E68EB103_totalLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseNet_509ED0D1257C6FC76E1B9658E68EB103" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net Interest Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_509ED0D1257C6FC76E1B9658E68EB103" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeExpenseNet_509ED0D1257C6FC76E1B9658E68EB103" xlink:to="lab_us-gaap_InterestIncomeExpenseNet_509ED0D1257C6FC76E1B9658E68EB103" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2CDDF30FBEE1439DCBB79658E68E44C1_totalLabel_en-US" xlink:label="lab_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2CDDF30FBEE1439DCBB79658E68E44C1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net interest income after provision for loan losses</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:label="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2CDDF30FBEE1439DCBB79658E68E44C1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2CDDF30FBEE1439DCBB79658E68E44C1" xlink:to="lab_us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss_2CDDF30FBEE1439DCBB79658E68E44C1" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestIncomeAbstract_BBFBB81CBCB53FD8FD7F9658E68F9A51_verboseLabel_en-US" xlink:label="lab_us-gaap_NoninterestIncomeAbstract_BBFBB81CBCB53FD8FD7F9658E68F9A51" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-Interest Income</link:label>
    <link:label id="lab_us-gaap_NoninterestIncomeAbstract_BBFBB81CBCB53FD8FD7F9658E68F9A51_label_en-US" xlink:label="lab_us-gaap_NoninterestIncomeAbstract_BBFBB81CBCB53FD8FD7F9658E68F9A51" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noninterest Income [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestIncomeAbstract" xlink:label="loc_us-gaap_NoninterestIncomeAbstract_BBFBB81CBCB53FD8FD7F9658E68F9A51" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestIncomeAbstract_BBFBB81CBCB53FD8FD7F9658E68F9A51" xlink:to="lab_us-gaap_NoninterestIncomeAbstract_BBFBB81CBCB53FD8FD7F9658E68F9A51" xlink:type="arc" />
    <link:label id="lab_us-gaap_FeesAndCommissionsDepositorAccounts_04B23D8D8465867D9B3E9658E68F553D_verboseLabel_en-US" xlink:label="lab_us-gaap_FeesAndCommissionsDepositorAccounts_04B23D8D8465867D9B3E9658E68F553D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Service charges and other fees</link:label>
    <link:label id="lab_us-gaap_FeesAndCommissionsDepositorAccounts_04B23D8D8465867D9B3E9658E68F553D_label_en-US" xlink:label="lab_us-gaap_FeesAndCommissionsDepositorAccounts_04B23D8D8465867D9B3E9658E68F553D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fees and Commissions, Depositor Accounts</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FeesAndCommissionsDepositorAccounts" xlink:label="loc_us-gaap_FeesAndCommissionsDepositorAccounts_04B23D8D8465867D9B3E9658E68F553D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FeesAndCommissionsDepositorAccounts_04B23D8D8465867D9B3E9658E68F553D" xlink:to="lab_us-gaap_FeesAndCommissionsDepositorAccounts_04B23D8D8465867D9B3E9658E68F553D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FeesAndCommissionsOther_C3F30E412740417A75C99658E68FE88C_verboseLabel_en-US" xlink:label="lab_us-gaap_FeesAndCommissionsOther_C3F30E412740417A75C99658E68FE88C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Miscellaneous loan fees and charges</link:label>
    <link:label id="lab_us-gaap_FeesAndCommissionsOther_C3F30E412740417A75C99658E68FE88C_label_en-US" xlink:label="lab_us-gaap_FeesAndCommissionsOther_C3F30E412740417A75C99658E68FE88C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fees and Commissions, Other</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FeesAndCommissionsOther" xlink:label="loc_us-gaap_FeesAndCommissionsOther_C3F30E412740417A75C99658E68FE88C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FeesAndCommissionsOther_C3F30E412740417A75C99658E68FE88C" xlink:to="lab_us-gaap_FeesAndCommissionsOther_C3F30E412740417A75C99658E68FE88C" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainLossOnSalesOfLoansNet_EDDF119C64112B0700B59658E68F678F_verboseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSalesOfLoansNet_EDDF119C64112B0700B59658E68F678F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Gain on sale of loans</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSalesOfLoansNet" xlink:label="loc_us-gaap_GainLossOnSalesOfLoansNet_EDDF119C64112B0700B59658E68F678F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSalesOfLoansNet_EDDF119C64112B0700B59658E68F678F" xlink:to="lab_us-gaap_GainLossOnSalesOfLoansNet_EDDF119C64112B0700B59658E68F678F" xlink:type="arc" />
    <link:label id="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_E0FE7A9DE49DF2CF53D79658E68F4412_verboseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_E0FE7A9DE49DF2CF53D79658E68F4412" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">(Loss) gain on sale of investments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:label="loc_us-gaap_GainLossOnSaleOfSecuritiesNet_E0FE7A9DE49DF2CF53D79658E68F4412" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfSecuritiesNet_E0FE7A9DE49DF2CF53D79658E68F4412" xlink:to="lab_us-gaap_GainLossOnSaleOfSecuritiesNet_E0FE7A9DE49DF2CF53D79658E68F4412" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestIncomeOtherOperatingIncome_1927C21C1181DFDF30F39658E68FBABD_verboseLabel_en-US" xlink:label="lab_us-gaap_NoninterestIncomeOtherOperatingIncome_1927C21C1181DFDF30F39658E68FBABD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other income</link:label>
    <link:label id="lab_us-gaap_NoninterestIncomeOtherOperatingIncome_1927C21C1181DFDF30F39658E68FBABD_label_en-US" xlink:label="lab_us-gaap_NoninterestIncomeOtherOperatingIncome_1927C21C1181DFDF30F39658E68FBABD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noninterest Income, Other Operating Income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestIncomeOtherOperatingIncome" xlink:label="loc_us-gaap_NoninterestIncomeOtherOperatingIncome_1927C21C1181DFDF30F39658E68FBABD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestIncomeOtherOperatingIncome_1927C21C1181DFDF30F39658E68FBABD" xlink:to="lab_us-gaap_NoninterestIncomeOtherOperatingIncome_1927C21C1181DFDF30F39658E68FBABD" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestIncome_B1AD8863B19D0B2E2CA29658E68F7756_totalLabel_en-US" xlink:label="lab_us-gaap_NoninterestIncome_B1AD8863B19D0B2E2CA29658E68F7756" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total non-interest income</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestIncome" xlink:label="loc_us-gaap_NoninterestIncome_B1AD8863B19D0B2E2CA29658E68F7756" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestIncome_B1AD8863B19D0B2E2CA29658E68F7756" xlink:to="lab_us-gaap_NoninterestIncome_B1AD8863B19D0B2E2CA29658E68F7756" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestExpenseAbstract_50E826C0E3AA862B27E69658E68F8042_verboseLabel_en-US" xlink:label="lab_us-gaap_NoninterestExpenseAbstract_50E826C0E3AA862B27E69658E68F8042" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-Interest Expense</link:label>
    <link:label id="lab_us-gaap_NoninterestExpenseAbstract_50E826C0E3AA862B27E69658E68F8042_label_en-US" xlink:label="lab_us-gaap_NoninterestExpenseAbstract_50E826C0E3AA862B27E69658E68F8042" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noninterest Expense [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestExpenseAbstract" xlink:label="loc_us-gaap_NoninterestExpenseAbstract_50E826C0E3AA862B27E69658E68F8042" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestExpenseAbstract_50E826C0E3AA862B27E69658E68F8042" xlink:to="lab_us-gaap_NoninterestExpenseAbstract_50E826C0E3AA862B27E69658E68F8042" xlink:type="arc" />
    <link:label id="lab_us-gaap_OccupancyNet_C069613FC1E688F197A99658E68F1227_verboseLabel_en-US" xlink:label="lab_us-gaap_OccupancyNet_C069613FC1E688F197A99658E68F1227" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Occupancy and equipment</link:label>
    <link:label id="lab_us-gaap_OccupancyNet_C069613FC1E688F197A99658E68F1227_label_en-US" xlink:label="lab_us-gaap_OccupancyNet_C069613FC1E688F197A99658E68F1227" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Occupancy, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OccupancyNet" xlink:label="loc_us-gaap_OccupancyNet_C069613FC1E688F197A99658E68F1227" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OccupancyNet_C069613FC1E688F197A99658E68F1227" xlink:to="lab_us-gaap_OccupancyNet_C069613FC1E688F197A99658E68F1227" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdvertisingExpense_C5723B85334788F564F19658E68F23B6_verboseLabel_en-US" xlink:label="lab_us-gaap_AdvertisingExpense_C5723B85334788F564F19658E68F23B6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Advertising and promotions</link:label>
    <link:label id="lab_us-gaap_AdvertisingExpense_C5723B85334788F564F19658E68F23B6_label_en-US" xlink:label="lab_us-gaap_AdvertisingExpense_C5723B85334788F564F19658E68F23B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Advertising Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvertisingExpense" xlink:label="loc_us-gaap_AdvertisingExpense_C5723B85334788F564F19658E68F23B6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdvertisingExpense_C5723B85334788F564F19658E68F23B6" xlink:to="lab_us-gaap_AdvertisingExpense_C5723B85334788F564F19658E68F23B6" xlink:type="arc" />
    <link:label id="lab_us-gaap_InformationTechnologyAndDataProcessing_8124B320796995746BAB9658E68F0A24_verboseLabel_en-US" xlink:label="lab_us-gaap_InformationTechnologyAndDataProcessing_8124B320796995746BAB9658E68F0A24" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Data processing</link:label>
    <link:label id="lab_us-gaap_InformationTechnologyAndDataProcessing_8124B320796995746BAB9658E68F0A24_label_en-US" xlink:label="lab_us-gaap_InformationTechnologyAndDataProcessing_8124B320796995746BAB9658E68F0A24" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Information Technology and Data Processing</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InformationTechnologyAndDataProcessing" xlink:label="loc_us-gaap_InformationTechnologyAndDataProcessing_8124B320796995746BAB9658E68F0A24" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InformationTechnologyAndDataProcessing_8124B320796995746BAB9658E68F0A24" xlink:to="lab_us-gaap_InformationTechnologyAndDataProcessing_8124B320796995746BAB9658E68F0A24" xlink:type="arc" />
    <link:label id="lab_us-gaap_ForeclosedRealEstateExpense_993F0A4A612D9F689E759658E68FC2BA_verboseLabel_en-US" xlink:label="lab_us-gaap_ForeclosedRealEstateExpense_993F0A4A612D9F689E759658E68FC2BA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other real estate owned</link:label>
    <link:label id="lab_us-gaap_ForeclosedRealEstateExpense_993F0A4A612D9F689E759658E68FC2BA_label_en-US" xlink:label="lab_us-gaap_ForeclosedRealEstateExpense_993F0A4A612D9F689E759658E68FC2BA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreclosed Real Estate Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ForeclosedRealEstateExpense" xlink:label="loc_us-gaap_ForeclosedRealEstateExpense_993F0A4A612D9F689E759658E68FC2BA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ForeclosedRealEstateExpense_993F0A4A612D9F689E759658E68FC2BA" xlink:to="lab_us-gaap_ForeclosedRealEstateExpense_993F0A4A612D9F689E759658E68FC2BA" xlink:type="arc" />
    <link:label id="lab_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5_verboseLabel_en-US" xlink:label="lab_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Regulatory assessments and insurance</link:label>
    <link:label id="lab_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5_label_en-US" xlink:label="lab_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General Insurance and Federal Deposit Insurance Corporation Premium Expense</link:label>
    <link:label id="lab_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5_documentation_en-US" xlink:label="lab_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The expense in the period incurred with respect to protection provided by insurance entities against risks other than risks associated with production, including the amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense" xlink:label="loc_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5" xlink:to="lab_gbci_GeneralInsuranceandFederalDepositInsuranceCorporationPremiumExpense_547B56ACEA6B313005089658E690D2D5" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherNoninterestExpense_BC98677DAE98BD5AB2CA9658E69006D7_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherNoninterestExpense_BC98677DAE98BD5AB2CA9658E69006D7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="loc_us-gaap_OtherNoninterestExpense_BC98677DAE98BD5AB2CA9658E69006D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNoninterestExpense_BC98677DAE98BD5AB2CA9658E69006D7" xlink:to="lab_us-gaap_OtherNoninterestExpense_BC98677DAE98BD5AB2CA9658E69006D7" xlink:type="arc" />
    <link:label id="lab_us-gaap_NoninterestExpense_EFA574432BD28643BD3C9658E6901D5E_totalLabel_en-US" xlink:label="lab_us-gaap_NoninterestExpense_EFA574432BD28643BD3C9658E6901D5E" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total non-interest expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoninterestExpense" xlink:label="loc_us-gaap_NoninterestExpense_EFA574432BD28643BD3C9658E6901D5E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NoninterestExpense_EFA574432BD28643BD3C9658E6901D5E" xlink:to="lab_us-gaap_NoninterestExpense_EFA574432BD28643BD3C9658E6901D5E" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_B279C6883CFEFBBA923A9658E690C8EF_totalLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_B279C6883CFEFBBA923A9658E690C8EF" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income Before Income Taxes</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_B279C6883CFEFBBA923A9658E690C8EF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_B279C6883CFEFBBA923A9658E690C8EF" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_B279C6883CFEFBBA923A9658E690C8EF" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_2875E4E049B9DFC666469658E690171B_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit_2875E4E049B9DFC666469658E690171B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Federal and state income tax expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_2875E4E049B9DFC666469658E690171B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_2875E4E049B9DFC666469658E690171B" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit_2875E4E049B9DFC666469658E690171B" xlink:type="arc" />
    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_C2DD5C2E341B70AF96C29658E691C07E_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared_C2DD5C2E341B70AF96C29658E691C07E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Dividends declared per share</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_C2DD5C2E341B70AF96C29658E691C07E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockDividendsPerShareDeclared_C2DD5C2E341B70AF96C29658E691C07E" xlink:to="lab_us-gaap_CommonStockDividendsPerShareDeclared_C2DD5C2E341B70AF96C29658E691C07E" xlink:type="arc" />
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_20E59AEBD1FF64F89C559658E691865E_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_20E59AEBD1FF64F89C559658E691865E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Average outstanding shares - diluted</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_20E59AEBD1FF64F89C559658E691865E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_20E59AEBD1FF64F89C559658E691865E" xlink:to="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_20E59AEBD1FF64F89C559658E691865E" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_D062E4F1950520648DA57598771CD964_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_EA6A58EC45C65DA1A028C1A06234BCC6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consideration transferred, identifiable net assets acquired and resulting goodwill</link:label>
    <link:label id="lab_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_D062E4F1950520648DA57598771CD964_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_EA6A58EC45C65DA1A028C1A06234BCC6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_EA6A58EC45C65DA1A028C1A06234BCC6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_EA6A58EC45C65DA1A028C1A06234BCC6" xlink:to="lab_us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_EA6A58EC45C65DA1A028C1A06234BCC6" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_C9917EA3CBD1A2E368AC7598771CD149_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_FC57A1B9C541556EBFD19D13A8A3EB18" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unaudited Pro Forma Summary of the Company as if the Acquisitions had Occurred at the Beginning of the Period</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_C9917EA3CBD1A2E368AC7598771CD149_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_FC57A1B9C541556EBFD19D13A8A3EB18" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Acquisition, Pro Forma Information [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessAcquisitionProFormaInformationTextBlock" xlink:label="loc_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_FC57A1B9C541556EBFD19D13A8A3EB18" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_FC57A1B9C541556EBFD19D13A8A3EB18" xlink:to="lab_us-gaap_BusinessAcquisitionProFormaInformationTextBlock_FC57A1B9C541556EBFD19D13A8A3EB18" xlink:type="arc" />
    <link:label id="lab_us-gaap_StockholdersEquityNoteAbstract_009913043D923DAA4BEEB5A6069664F6_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteAbstract_009913043D923DAA4BEEB5A6069664F6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Note [Abstract]</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityNoteAbstract_009913043D923DAA4BEEB5A6069664F6_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteAbstract_009913043D923DAA4BEEB5A6069664F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Note [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquityNoteAbstract" xlink:label="loc_us-gaap_StockholdersEquityNoteAbstract_009913043D923DAA4BEEB5A6069664F6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityNoteAbstract_009913043D923DAA4BEEB5A6069664F6" xlink:to="lab_us-gaap_StockholdersEquityNoteAbstract_009913043D923DAA4BEEB5A6069664F6" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8BE3619C6BF0532C823BB5A606965F9D_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8BE3619C6BF0532C823BB5A606965F9D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Table]</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8BE3619C6BF0532C823BB5A606965F9D_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8BE3619C6BF0532C823BB5A606965F9D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8BE3619C6BF0532C823BB5A606965F9D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8BE3619C6BF0532C823BB5A606965F9D" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8BE3619C6BF0532C823BB5A606965F9D" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_B83260E15FB870DCD075B5A606976892_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_B83260E15FB870DCD075B5A606976892" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-For-Sale Securities</link:label>
    <link:label id="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_B83260E15FB870DCD075B5A606976892_label_en-US" xlink:label="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_B83260E15FB870DCD075B5A606976892" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:label="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_B83260E15FB870DCD075B5A606976892" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_B83260E15FB870DCD075B5A606976892" xlink:to="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_B83260E15FB870DCD075B5A606976892" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_DB046C25956A92523429B5A606976EB8_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_DB046C25956A92523429B5A606976EB8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivatives Used for Cash Flow Hedges</link:label>
    <link:label id="lab_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_DB046C25956A92523429B5A606976EB8_label_en-US" xlink:label="lab_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_DB046C25956A92523429B5A606976EB8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_DB046C25956A92523429B5A606976EB8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_DB046C25956A92523429B5A606976EB8" xlink:to="lab_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_DB046C25956A92523429B5A606976EB8" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_0BE054A72019CF0612A3B5A606972DDF_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_0BE054A72019CF0612A3B5A606972DDF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss)</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_0BE054A72019CF0612A3B5A606972DDF_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_0BE054A72019CF0612A3B5A606972DDF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_0BE054A72019CF0612A3B5A606972DDF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_0BE054A72019CF0612A3B5A606972DDF" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_0BE054A72019CF0612A3B5A606972DDF" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_F5AAEA405867CD6DE370B5A606977BC3_periodStartLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_F5AAEA405867CD6DE370B5A606977BC3" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance, beginning</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_F5AAEA405867CD6DE370B5A606977BC3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_F5AAEA405867CD6DE370B5A606977BC3" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_F5AAEA405867CD6DE370B5A606977BC3" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_BBEE74CC33B2EBBD2388B5A60697BBF6_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_BBEE74CC33B2EBBD2388B5A60697BBF6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss) before reclassification</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_BBEE74CC33B2EBBD2388B5A60697BBF6_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_BBEE74CC33B2EBBD2388B5A60697BBF6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss), before Reclassifications, Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_BBEE74CC33B2EBBD2388B5A60697BBF6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_BBEE74CC33B2EBBD2388B5A60697BBF6" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_BBEE74CC33B2EBBD2388B5A60697BBF6" xlink:type="arc" />
    <link:label id="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_E012C0402520D6020EC9B5A606970D95_negatedLabel_en-US" xlink:label="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_E012C0402520D6020EC9B5A606970D95" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Reclassification adjustments for gains (losses) included in net income</link:label>
    <link:label id="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_E012C0402520D6020EC9B5A606970D95_label_en-US" xlink:label="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_E012C0402520D6020EC9B5A606970D95" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_E012C0402520D6020EC9B5A606970D95" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_E012C0402520D6020EC9B5A606970D95" xlink:to="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_E012C0402520D6020EC9B5A606970D95" xlink:type="arc" />
    <link:label id="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_36A16BAD6E23BB757BCEB5A606975FDC_verboseLabel_en-US" xlink:label="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_36A16BAD6E23BB757BCEB5A606975FDC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Reclassifications from accumulated other comprehensive income (loss) to retained earnings</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ReclassificationFromAociCurrentPeriodTax" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_36A16BAD6E23BB757BCEB5A606975FDC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReclassificationFromAociCurrentPeriodTax_36A16BAD6E23BB757BCEB5A606975FDC" xlink:to="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_36A16BAD6E23BB757BCEB5A606975FDC" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_FB4E91955C20A912448CB5A60698A84E_periodEndLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_FB4E91955C20A912448CB5A60698A84E" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance, end</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_FB4E91955C20A912448CB5A60698A84E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_FB4E91955C20A912448CB5A60698A84E" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_FB4E91955C20A912448CB5A60698A84E" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfImpairedFinancingReceivableTable_4D0DA3BAEF60CCE6C2C175987841B44B_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfImpairedFinancingReceivableTable_734F7B1AE05852328693553A134EFD79" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Impaired Financing Receivable [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfImpairedFinancingReceivableTable_4D0DA3BAEF60CCE6C2C175987841B44B_label_en-US" xlink:label="lab_us-gaap_ScheduleOfImpairedFinancingReceivableTable_734F7B1AE05852328693553A134EFD79" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Impaired Financing Receivable [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfImpairedFinancingReceivableTable" xlink:label="loc_us-gaap_ScheduleOfImpairedFinancingReceivableTable_734F7B1AE05852328693553A134EFD79" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfImpairedFinancingReceivableTable_734F7B1AE05852328693553A134EFD79" xlink:to="lab_us-gaap_ScheduleOfImpairedFinancingReceivableTable_734F7B1AE05852328693553A134EFD79" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableImpairedLineItems_15B78F84BEED3DB32DED75987842B982_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableImpairedLineItems_84039135AFD055A9B4F83285F3676179" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Financing Receivable, Impaired [Line Items]</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableImpairedLineItems_15B78F84BEED3DB32DED75987842B982_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableImpairedLineItems_84039135AFD055A9B4F83285F3676179" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Impaired [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableImpairedLineItems" xlink:label="loc_us-gaap_FinancingReceivableImpairedLineItems_84039135AFD055A9B4F83285F3676179" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableImpairedLineItems_84039135AFD055A9B4F83285F3676179" xlink:to="lab_us-gaap_FinancingReceivableImpairedLineItems_84039135AFD055A9B4F83285F3676179" xlink:type="arc" />
    <link:label id="lab_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_5E6CAD85D119B58FEACE759878420F3C_verboseLabel_en-US" xlink:label="lab_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_27706FBCA737501B84D5F55D368037C8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of the impaired loans by portfolio class of loans</link:label>
    <link:label id="lab_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_5E6CAD85D119B58FEACE759878420F3C_label_en-US" xlink:label="lab_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_27706FBCA737501B84D5F55D368037C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Summary of Impaired Loans by Portfolio Class of Loans [Abstract]</link:label>
    <link:label id="lab_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_5E6CAD85D119B58FEACE759878420F3C_documentation_en-US" xlink:label="lab_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_27706FBCA737501B84D5F55D368037C8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Summary of the impaired loans by portfolio class of loans.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract" xlink:label="loc_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_27706FBCA737501B84D5F55D368037C8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_27706FBCA737501B84D5F55D368037C8" xlink:to="lab_gbci_SummaryOfImpairedLoansByPortfolioClassOfLoansAbstract_27706FBCA737501B84D5F55D368037C8" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment_DAF9B9CB6B06C3A290C2759878424357_terseLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment_5C293C2B51355864B645CCAD5A0F32C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans with a Specific Valuation Allowance, Recorded Balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment_DAF9B9CB6B06C3A290C2759878424357_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment_5C293C2B51355864B645CCAD5A0F32C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, with Related Allowance, Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment" xlink:label="loc_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment_5C293C2B51355864B645CCAD5A0F32C7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment_5C293C2B51355864B645CCAD5A0F32C7" xlink:to="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment_5C293C2B51355864B645CCAD5A0F32C7" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance_396D5BC62241758D66B175987842D924_terseLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance_7E21B07FDC4A5CAE966107EB2F504082" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans with a Specific Valuation Allowance, Unpaid Principal Balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance_396D5BC62241758D66B175987842D924_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance_7E21B07FDC4A5CAE966107EB2F504082" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance" xlink:label="loc_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance_7E21B07FDC4A5CAE966107EB2F504082" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance_7E21B07FDC4A5CAE966107EB2F504082" xlink:to="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance_7E21B07FDC4A5CAE966107EB2F504082" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableRelatedAllowance_7F111D075C8BA47AC6E07598784252BF_verboseLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableRelatedAllowance_780AA33F297B52A484906F4DE5DC6ED7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Specific valuation allowance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableRelatedAllowance_7F111D075C8BA47AC6E07598784252BF_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableRelatedAllowance_780AA33F297B52A484906F4DE5DC6ED7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, Related Allowance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableRelatedAllowance" xlink:label="loc_us-gaap_ImpairedFinancingReceivableRelatedAllowance_780AA33F297B52A484906F4DE5DC6ED7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableRelatedAllowance_780AA33F297B52A484906F4DE5DC6ED7" xlink:to="lab_us-gaap_ImpairedFinancingReceivableRelatedAllowance_780AA33F297B52A484906F4DE5DC6ED7" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment_5D3C084FA4BDF645539A75987842D62B_terseLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment_D22A8CEDA6F15103AF64D01FB66F0B90" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans with a Specific Valuation Allowance, Average Balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment_5D3C084FA4BDF645539A75987842D62B_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment_D22A8CEDA6F15103AF64D01FB66F0B90" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, with Related Allowance, Average Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment" xlink:label="loc_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment_D22A8CEDA6F15103AF64D01FB66F0B90" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment_D22A8CEDA6F15103AF64D01FB66F0B90" xlink:to="lab_us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment_D22A8CEDA6F15103AF64D01FB66F0B90" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment_7DAA46D203F5CDB8D25C75987842D6F9_terseLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment_9FAE30E9981C59F6B8D11D6BE446A9C1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans without a Specific Valuation Allowance, Recorded Balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment_7DAA46D203F5CDB8D25C75987842D6F9_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment_9FAE30E9981C59F6B8D11D6BE446A9C1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, with No Related Allowance, Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment" xlink:label="loc_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment_9FAE30E9981C59F6B8D11D6BE446A9C1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment_9FAE30E9981C59F6B8D11D6BE446A9C1" xlink:to="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment_9FAE30E9981C59F6B8D11D6BE446A9C1" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance_5CAFFCF37D35523F741275987842C745_terseLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance_331355F02A0B5793BA71B4057745278E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans without a Specific Valuation Allowance, Unpaid Principal Balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance_5CAFFCF37D35523F741275987842C745_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance_331355F02A0B5793BA71B4057745278E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance" xlink:label="loc_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance_331355F02A0B5793BA71B4057745278E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance_331355F02A0B5793BA71B4057745278E" xlink:to="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance_331355F02A0B5793BA71B4057745278E" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment_E0CF5A8380CB04EFD41775987842E335_terseLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment_87EF7F842FB95F7DAD79398CEBF99B8B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans without a Specific Valuation Allowance, Average Balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment_E0CF5A8380CB04EFD41775987842E335_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment_87EF7F842FB95F7DAD79398CEBF99B8B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment" xlink:label="loc_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment_87EF7F842FB95F7DAD79398CEBF99B8B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment_87EF7F842FB95F7DAD79398CEBF99B8B" xlink:to="lab_us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment_87EF7F842FB95F7DAD79398CEBF99B8B" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableRecordedInvestment_66545BC65005F026F306759878439931_totalLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableRecordedInvestment_75E6C4B5400753BAB37486E9C35C1B00" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Recorded balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableRecordedInvestment_66545BC65005F026F306759878439931_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableRecordedInvestment_75E6C4B5400753BAB37486E9C35C1B00" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableRecordedInvestment" xlink:label="loc_us-gaap_ImpairedFinancingReceivableRecordedInvestment_75E6C4B5400753BAB37486E9C35C1B00" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableRecordedInvestment_75E6C4B5400753BAB37486E9C35C1B00" xlink:to="lab_us-gaap_ImpairedFinancingReceivableRecordedInvestment_75E6C4B5400753BAB37486E9C35C1B00" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_6157A0E717E516B2B26A759878432DAD_totalLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_7F26910138E45AD5875392CDF1BF12A1" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Unpaid principal balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_6157A0E717E516B2B26A759878432DAD_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_7F26910138E45AD5875392CDF1BF12A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, Unpaid Principal Balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance" xlink:label="loc_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_7F26910138E45AD5875392CDF1BF12A1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_7F26910138E45AD5875392CDF1BF12A1" xlink:to="lab_us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance_7F26910138E45AD5875392CDF1BF12A1" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment_95E90D667CA5CEFC7B9A7598784318C0_totalLabel_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment_ECF8919F9D9D590CB38DB66A0A2CC5FC" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Average balance</link:label>
    <link:label id="lab_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment_95E90D667CA5CEFC7B9A7598784318C0_label_en-US" xlink:label="lab_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment_ECF8919F9D9D590CB38DB66A0A2CC5FC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impaired Financing Receivable, Average Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment" xlink:label="loc_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment_ECF8919F9D9D590CB38DB66A0A2CC5FC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment_ECF8919F9D9D590CB38DB66A0A2CC5FC" xlink:to="lab_us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment_ECF8919F9D9D590CB38DB66A0A2CC5FC" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_D49F474B86478CBBCAB0759877589A79_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_A8277459C0F85014971361CEE272B753" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Financing Receivable, Troubled Debt Restructurings [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_D49F474B86478CBBCAB0759877589A79_label_en-US" xlink:label="lab_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_A8277459C0F85014971361CEE272B753" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Financing Receivable, Troubled Debt Restructurings [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable" xlink:label="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_A8277459C0F85014971361CEE272B753" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_A8277459C0F85014971361CEE272B753" xlink:to="lab_us-gaap_ScheduleOfFinancingReceivableTroubledDebtRestructuringsTable_A8277459C0F85014971361CEE272B753" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableModificationsLineItems_886184D466089237B78E75987759B218_verboseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsLineItems_5018FCE0D0E8523DBACCE1260C4AC20D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Troubled Debt Restructurings</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableModificationsLineItems_886184D466089237B78E75987759B218_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsLineItems_5018FCE0D0E8523DBACCE1260C4AC20D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Modifications [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsLineItems" xlink:label="loc_us-gaap_FinancingReceivableModificationsLineItems_5018FCE0D0E8523DBACCE1260C4AC20D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableModificationsLineItems_5018FCE0D0E8523DBACCE1260C4AC20D" xlink:to="lab_us-gaap_FinancingReceivableModificationsLineItems_5018FCE0D0E8523DBACCE1260C4AC20D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableModificationsNumberOfContracts2_36542FC642A39683325D75987759CC67_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsNumberOfContracts2_17D7461C440A5272A975D7356C1BF10B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Troubled Debt Restructurings, Number of Loans</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableModificationsNumberOfContracts2_36542FC642A39683325D75987759CC67_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsNumberOfContracts2_17D7461C440A5272A975D7356C1BF10B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Modifications, Number of Contracts</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsNumberOfContracts2" xlink:label="loc_us-gaap_FinancingReceivableModificationsNumberOfContracts2_17D7461C440A5272A975D7356C1BF10B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableModificationsNumberOfContracts2_17D7461C440A5272A975D7356C1BF10B" xlink:to="lab_us-gaap_FinancingReceivableModificationsNumberOfContracts2_17D7461C440A5272A975D7356C1BF10B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2_691A2D1A3D0590B117387598775A0552_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2_F9AD5AF477605A139D98F922CFC1AE8B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Troubled Debt Restructurings, Pre-Modification Recorded Balance</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2_691A2D1A3D0590B117387598775A0552_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2_F9AD5AF477605A139D98F922CFC1AE8B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Modifications, Pre-Modification Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2" xlink:label="loc_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2_F9AD5AF477605A139D98F922CFC1AE8B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2_F9AD5AF477605A139D98F922CFC1AE8B" xlink:to="lab_us-gaap_FinancingReceivableModificationsPreModificationRecordedInvestment2_F9AD5AF477605A139D98F922CFC1AE8B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2_1CD141C5B75619DA5B157598775ADD32_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2_6690755959A557AF9F3A8B03CE606260" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Troubled Debt Restructurings, Post-Modification Recorded Balance</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2_1CD141C5B75619DA5B157598775ADD32_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2_6690755959A557AF9F3A8B03CE606260" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Modifications, Post-Modification Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2" xlink:label="loc_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2_6690755959A557AF9F3A8B03CE606260" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2_6690755959A557AF9F3A8B03CE606260" xlink:to="lab_us-gaap_FinancingReceivableModificationsPostModificationRecordedInvestment2_6690755959A557AF9F3A8B03CE606260" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1_419BE2443F6870DC995B7598775A6FC9_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1_11E525C80AAF54468922860E2E60D91D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">TDRs that Subsequently Defaulted, Number of Loans</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1_419BE2443F6870DC995B7598775A6FC9_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1_11E525C80AAF54468922860E2E60D91D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Modifications, Subsequent Default, Number of Contracts</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1" xlink:label="loc_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1_11E525C80AAF54468922860E2E60D91D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1_11E525C80AAF54468922860E2E60D91D" xlink:to="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1_11E525C80AAF54468922860E2E60D91D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_7E2969D7769E9D7F19067598775A5215_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_F4207B7D855652B98D2BA19DE01A61AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">TDRs that Subsequently Defaulted, Recorded Balance</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_7E2969D7769E9D7F19067598775A5215_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_F4207B7D855652B98D2BA19DE01A61AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Modifications, Subsequent Default, Recorded Investment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1" xlink:label="loc_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_F4207B7D855652B98D2BA19DE01A61AA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_F4207B7D855652B98D2BA19DE01A61AA" xlink:to="lab_us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1_F4207B7D855652B98D2BA19DE01A61AA" xlink:type="arc" />
    <link:label id="lab_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_B3C2FBF29CFAD11D9A517598773F0C56_terseLabel_en-US" xlink:label="lab_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_81D9A7CB73C95F46A08364E0883C3C3B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Maximum Number of Consecutive Quarters for Deferral of Interest Payments on Trust Preferred Securities</link:label>
    <link:label id="lab_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_B3C2FBF29CFAD11D9A517598773F0C56_label_en-US" xlink:label="lab_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_81D9A7CB73C95F46A08364E0883C3C3B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum Number of Consecutive Quarters for Deferral of Interest Payments on Trust Preferred Securities</link:label>
    <link:label id="lab_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_B3C2FBF29CFAD11D9A517598773F0C56_documentation_en-US" xlink:label="lab_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_81D9A7CB73C95F46A08364E0883C3C3B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Maximum Number of Consecutive Quarters for Deferral of Interest Payments on Trust Preferred Securities</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities" xlink:label="loc_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_81D9A7CB73C95F46A08364E0883C3C3B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_81D9A7CB73C95F46A08364E0883C3C3B" xlink:to="lab_gbci_MaximumNumberofConsecutiveQuartersforDeferralofInterestPaymentsonTrustPreferredSecurities_81D9A7CB73C95F46A08364E0883C3C3B" xlink:type="arc" />
    <link:label id="lab_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_7CF9586E2AB8BEA9E2FC7598773F00A0_verboseLabel_en-US" xlink:label="lab_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_D6EBB147E95D51F293682B6BF4E0659F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Size of company eligible for Tier 1 grandfather provision</link:label>
    <link:label id="lab_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_7CF9586E2AB8BEA9E2FC7598773F00A0_label_en-US" xlink:label="lab_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_D6EBB147E95D51F293682B6BF4E0659F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Size of company eligible for Tier 1 grandfather provision</link:label>
    <link:label id="lab_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_7CF9586E2AB8BEA9E2FC7598773F00A0_documentation_en-US" xlink:label="lab_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_D6EBB147E95D51F293682B6BF4E0659F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Size of company eligible for Tier 1 grandfather provision.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision" xlink:label="loc_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_D6EBB147E95D51F293682B6BF4E0659F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_D6EBB147E95D51F293682B6BF4E0659F" xlink:to="lab_gbci_SizeOfCompanyEligibleForTier1GrandfatherProvision_D6EBB147E95D51F293682B6BF4E0659F" xlink:type="arc" />
    <link:label id="lab_us-gaap_GoodwillRollForward_51F070A85923BE8CD673A5F38E22BA59_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_51F070A85923BE8CD673A5F38E22BA59" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Goodwill Roll Forward</link:label>
    <link:label id="lab_us-gaap_GoodwillRollForward_51F070A85923BE8CD673A5F38E22BA59_label_en-US" xlink:label="lab_us-gaap_GoodwillRollForward_51F070A85923BE8CD673A5F38E22BA59" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill [Roll Forward]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillRollForward" xlink:label="loc_us-gaap_GoodwillRollForward_51F070A85923BE8CD673A5F38E22BA59" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillRollForward_51F070A85923BE8CD673A5F38E22BA59" xlink:to="lab_us-gaap_GoodwillRollForward_51F070A85923BE8CD673A5F38E22BA59" xlink:type="arc" />
    <link:label id="lab_us-gaap_Goodwill_5DF454D4D1DEF70D363DA5F38E22FF36_periodStartLabel_en-US" xlink:label="lab_us-gaap_Goodwill_5DF454D4D1DEF70D363DA5F38E22FF36" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Net carrying value at beginning of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_5DF454D4D1DEF70D363DA5F38E22FF36" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_5DF454D4D1DEF70D363DA5F38E22FF36" xlink:to="lab_us-gaap_Goodwill_5DF454D4D1DEF70D363DA5F38E22FF36" xlink:type="arc" />
    <link:label id="lab_us-gaap_GoodwillAcquiredDuringPeriod_AEBFE6230CFA00057CE6A5F38E229DD0_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAcquiredDuringPeriod_AEBFE6230CFA00057CE6A5F38E229DD0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Acquisitions and adjustments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_AEBFE6230CFA00057CE6A5F38E229DD0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAcquiredDuringPeriod_AEBFE6230CFA00057CE6A5F38E229DD0" xlink:to="lab_us-gaap_GoodwillAcquiredDuringPeriod_AEBFE6230CFA00057CE6A5F38E229DD0" xlink:type="arc" />
    <link:label id="lab_us-gaap_Goodwill_0B23F8783493EADB1E03A5F38E22C6F7_periodEndLabel_en-US" xlink:label="lab_us-gaap_Goodwill_0B23F8783493EADB1E03A5F38E22C6F7" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Net carrying value at end of period</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_0B23F8783493EADB1E03A5F38E22C6F7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill_0B23F8783493EADB1E03A5F38E22C6F7" xlink:to="lab_us-gaap_Goodwill_0B23F8783493EADB1E03A5F38E22C6F7" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_AC759E4A13C907F4E76AA4679CE1066B_terseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_AC759E4A13C907F4E76AA4679CE1066B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net Core Deposit Intangibles and Aggregate Amortization Expense</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_AC759E4A13C907F4E76AA4679CE1066B_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_AC759E4A13C907F4E76AA4679CE1066B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNetAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_AC759E4A13C907F4E76AA4679CE1066B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_AC759E4A13C907F4E76AA4679CE1066B" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsNetAbstract_AC759E4A13C907F4E76AA4679CE1066B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsGross_F0D32969D63A184B8780A4679CE1E51D_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsGross_F0D32969D63A184B8780A4679CE1E51D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Gross carrying value</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsGross_F0D32969D63A184B8780A4679CE1E51D_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsGross_F0D32969D63A184B8780A4679CE1E51D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_F0D32969D63A184B8780A4679CE1E51D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsGross_F0D32969D63A184B8780A4679CE1E51D" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsGross_F0D32969D63A184B8780A4679CE1E51D" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_E079AE9B0F0583DAEBD2A4679CE1AE08_negatedLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_E079AE9B0F0583DAEBD2A4679CE1AE08" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accumulated amortization</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_E079AE9B0F0583DAEBD2A4679CE1AE08_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_E079AE9B0F0583DAEBD2A4679CE1AE08" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Accumulated Amortization</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_E079AE9B0F0583DAEBD2A4679CE1AE08" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_E079AE9B0F0583DAEBD2A4679CE1AE08" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_E079AE9B0F0583DAEBD2A4679CE1AE08" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsNet_28745B12DA00D20A2864A4679CE1794D_totalLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsNet_28745B12DA00D20A2864A4679CE1794D" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net carrying value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_28745B12DA00D20A2864A4679CE1794D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_28745B12DA00D20A2864A4679CE1794D" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsNet_28745B12DA00D20A2864A4679CE1794D" xlink:type="arc" />
    <link:label id="lab_us-gaap_AmortizationOfIntangibleAssets_9BA57DB000027DDA6F21A4679CE1CAFE_terseLabel_en-US" xlink:label="lab_us-gaap_AmortizationOfIntangibleAssets_9BA57DB000027DDA6F21A4679CE1CAFE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate amortization expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_9BA57DB000027DDA6F21A4679CE1CAFE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AmortizationOfIntangibleAssets_9BA57DB000027DDA6F21A4679CE1CAFE" xlink:to="lab_us-gaap_AmortizationOfIntangibleAssets_9BA57DB000027DDA6F21A4679CE1CAFE" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_32824CE35F448C163D22A4679CE14286_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_32824CE35F448C163D22A4679CE14286" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Estimated Amortization Expense</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_32824CE35F448C163D22A4679CE14286_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_32824CE35F448C163D22A4679CE14286" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_32824CE35F448C163D22A4679CE14286" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_32824CE35F448C163D22A4679CE14286" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_32824CE35F448C163D22A4679CE14286" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_7661195384AEA4E7B716A4679CE1BD40_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_7661195384AEA4E7B716A4679CE1BD40" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2018</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_7661195384AEA4E7B716A4679CE1BD40_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_7661195384AEA4E7B716A4679CE1BD40" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_7661195384AEA4E7B716A4679CE1BD40" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_7661195384AEA4E7B716A4679CE1BD40" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_7661195384AEA4E7B716A4679CE1BD40" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_028E0C209A51AC6699ADA4679CE1D8F6_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_028E0C209A51AC6699ADA4679CE1D8F6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2019</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_028E0C209A51AC6699ADA4679CE1D8F6_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_028E0C209A51AC6699ADA4679CE1D8F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Two</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_028E0C209A51AC6699ADA4679CE1D8F6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_028E0C209A51AC6699ADA4679CE1D8F6" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_028E0C209A51AC6699ADA4679CE1D8F6" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_204FD0066D7B886E18F0A4679CE1E68B_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_204FD0066D7B886E18F0A4679CE1E68B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2020</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_204FD0066D7B886E18F0A4679CE1E68B_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_204FD0066D7B886E18F0A4679CE1E68B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Three</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_204FD0066D7B886E18F0A4679CE1E68B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_204FD0066D7B886E18F0A4679CE1E68B" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_204FD0066D7B886E18F0A4679CE1E68B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_61D0F5F7D34B0EF8B217A4679CE1A84B_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_61D0F5F7D34B0EF8B217A4679CE1A84B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2021</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_61D0F5F7D34B0EF8B217A4679CE1A84B_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_61D0F5F7D34B0EF8B217A4679CE1A84B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Four</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_61D0F5F7D34B0EF8B217A4679CE1A84B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_61D0F5F7D34B0EF8B217A4679CE1A84B" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_61D0F5F7D34B0EF8B217A4679CE1A84B" xlink:type="arc" />
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_C267D69B84496667AD11A4679CE1B71C_verboseLabel_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_C267D69B84496667AD11A4679CE1B71C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">For the year ending December 31, 2022</link:label>
    <link:label id="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_C267D69B84496667AD11A4679CE1B71C_label_en-US" xlink:label="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_C267D69B84496667AD11A4679CE1B71C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finite-Lived Intangible Assets, Amortization Expense, Year Five</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_C267D69B84496667AD11A4679CE1B71C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_C267D69B84496667AD11A4679CE1B71C" xlink:to="lab_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_C267D69B84496667AD11A4679CE1B71C" xlink:type="arc" />
    <link:label id="lab_us-gaap_DepositLiabilitiesDisclosuresTextBlock_9CC97873A2235B1DF289759876DD893F_verboseLabel_en-US" xlink:label="lab_us-gaap_DepositLiabilitiesDisclosuresTextBlock_ADEA1BDDECFD5BAFBDC8D880394B9849" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Deposits</link:label>
    <link:label id="lab_us-gaap_DepositLiabilitiesDisclosuresTextBlock_9CC97873A2235B1DF289759876DD893F_label_en-US" xlink:label="lab_us-gaap_DepositLiabilitiesDisclosuresTextBlock_ADEA1BDDECFD5BAFBDC8D880394B9849" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposit Liabilities Disclosures [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepositLiabilitiesDisclosuresTextBlock" xlink:label="loc_us-gaap_DepositLiabilitiesDisclosuresTextBlock_ADEA1BDDECFD5BAFBDC8D880394B9849" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepositLiabilitiesDisclosuresTextBlock_ADEA1BDDECFD5BAFBDC8D880394B9849" xlink:to="lab_us-gaap_DepositLiabilitiesDisclosuresTextBlock_ADEA1BDDECFD5BAFBDC8D880394B9849" xlink:type="arc" />
    <link:label id="lab_us-gaap_SubsequentEventsTextBlock_35DB142251EEF84BA684AE7E0F301507_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventsTextBlock_35DB142251EEF84BA684AE7E0F301507" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsequent Events</link:label>
    <link:label id="lab_us-gaap_SubsequentEventsTextBlock_35DB142251EEF84BA684AE7E0F301507_label_en-US" xlink:label="lab_us-gaap_SubsequentEventsTextBlock_35DB142251EEF84BA684AE7E0F301507" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsequent Events [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SubsequentEventsTextBlock" xlink:label="loc_us-gaap_SubsequentEventsTextBlock_35DB142251EEF84BA684AE7E0F301507" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventsTextBlock_35DB142251EEF84BA684AE7E0F301507" xlink:to="lab_us-gaap_SubsequentEventsTextBlock_35DB142251EEF84BA684AE7E0F301507" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_DBE1194AD5850D570D06B43382C15149_verboseLabel_en-US" xlink:label="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_DBE1194AD5850D570D06B43382C15149" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">General</link:label>
    <link:label id="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_DBE1194AD5850D570D06B43382C15149_label_en-US" xlink:label="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_DBE1194AD5850D570D06B43382C15149" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Description and Basis of Presentation [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:label="loc_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_DBE1194AD5850D570D06B43382C15149" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_DBE1194AD5850D570D06B43382C15149" xlink:to="lab_us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock_DBE1194AD5850D570D06B43382C15149" xlink:type="arc" />
    <link:label id="lab_us-gaap_ConsolidationPolicyTextBlock_596BEB02510578C1D71CB43382C1B303_verboseLabel_en-US" xlink:label="lab_us-gaap_ConsolidationPolicyTextBlock_596BEB02510578C1D71CB43382C1B303" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Principles of Consolidation</link:label>
    <link:label id="lab_us-gaap_ConsolidationPolicyTextBlock_596BEB02510578C1D71CB43382C1B303_label_en-US" xlink:label="lab_us-gaap_ConsolidationPolicyTextBlock_596BEB02510578C1D71CB43382C1B303" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidation, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock_596BEB02510578C1D71CB43382C1B303" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConsolidationPolicyTextBlock_596BEB02510578C1D71CB43382C1B303" xlink:to="lab_us-gaap_ConsolidationPolicyTextBlock_596BEB02510578C1D71CB43382C1B303" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock_C98480626AC5FCD8D851B43382C1956F_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock_C98480626AC5FCD8D851B43382C1956F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock_C98480626AC5FCD8D851B43382C1956F_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock_C98480626AC5FCD8D851B43382C1956F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_C98480626AC5FCD8D851B43382C1956F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsPolicyTextBlock_C98480626AC5FCD8D851B43382C1956F" xlink:to="lab_us-gaap_CashAndCashEquivalentsPolicyTextBlock_C98480626AC5FCD8D851B43382C1956F" xlink:type="arc" />
    <link:label id="lab_us-gaap_MarketableSecuritiesPolicy_D30459B399EA238A17A0B43382C1E13A_verboseLabel_en-US" xlink:label="lab_us-gaap_MarketableSecuritiesPolicy_D30459B399EA238A17A0B43382C1E13A" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investment Securities</link:label>
    <link:label id="lab_us-gaap_MarketableSecuritiesPolicy_D30459B399EA238A17A0B43382C1E13A_label_en-US" xlink:label="lab_us-gaap_MarketableSecuritiesPolicy_D30459B399EA238A17A0B43382C1E13A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Marketable Securities, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MarketableSecuritiesPolicy" xlink:label="loc_us-gaap_MarketableSecuritiesPolicy_D30459B399EA238A17A0B43382C1E13A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MarketableSecuritiesPolicy_D30459B399EA238A17A0B43382C1E13A" xlink:to="lab_us-gaap_MarketableSecuritiesPolicy_D30459B399EA238A17A0B43382C1E13A" xlink:type="arc" />
    <link:label id="lab_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709_verboseLabel_en-US" xlink:label="lab_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Temporary versus Other-Than-Temporary Impairment</link:label>
    <link:label id="lab_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709_label_en-US" xlink:label="lab_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Temporary Versus other Than Temporary Impairment [Policy Text Block]</link:label>
    <link:label id="lab_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709_documentation_en-US" xlink:label="lab_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Temporary versus other than temporary impairment.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock" xlink:label="loc_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709" xlink:to="lab_gbci_TemporaryVersusOtherThanTemporaryImpairmentPolicyTextBlock_FA60739F712E946357D3B43382C12709" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy_E69A28DEEDE8370DC79CB43382C15AA1_verboseLabel_en-US" xlink:label="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy_E69A28DEEDE8370DC79CB43382C15AA1" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans Held for Sale</link:label>
    <link:label id="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy_E69A28DEEDE8370DC79CB43382C15AA1_label_en-US" xlink:label="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy_E69A28DEEDE8370DC79CB43382C15AA1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finance, Loan and Lease Receivables, Held-for-sale, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy" xlink:label="loc_us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy_E69A28DEEDE8370DC79CB43382C15AA1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy_E69A28DEEDE8370DC79CB43382C15AA1" xlink:to="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForSalePolicy_E69A28DEEDE8370DC79CB43382C15AA1" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinanceLoansAndLeasesReceivablePolicy_D5C58D712B16E8FE56C9B43382C1076C_verboseLabel_en-US" xlink:label="lab_us-gaap_FinanceLoansAndLeasesReceivablePolicy_D5C58D712B16E8FE56C9B43382C1076C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans Receivable</link:label>
    <link:label id="lab_us-gaap_FinanceLoansAndLeasesReceivablePolicy_D5C58D712B16E8FE56C9B43382C1076C_label_en-US" xlink:label="lab_us-gaap_FinanceLoansAndLeasesReceivablePolicy_D5C58D712B16E8FE56C9B43382C1076C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finance, Loans and Leases Receivable, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinanceLoansAndLeasesReceivablePolicy" xlink:label="loc_us-gaap_FinanceLoansAndLeasesReceivablePolicy_D5C58D712B16E8FE56C9B43382C1076C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLoansAndLeasesReceivablePolicy_D5C58D712B16E8FE56C9B43382C1076C" xlink:to="lab_us-gaap_FinanceLoansAndLeasesReceivablePolicy_D5C58D712B16E8FE56C9B43382C1076C" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy_4410E36F288E976C000CB43382C1E27E_verboseLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy_4410E36F288E976C000CB43382C1E27E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Allowance for Loan and Lease Losses</link:label>
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy_4410E36F288E976C000CB43382C1E27E_label_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy_4410E36F288E976C000CB43382C1E27E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy" xlink:label="loc_us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy_4410E36F288E976C000CB43382C1E27E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy_4410E36F288E976C000CB43382C1E27E" xlink:to="lab_us-gaap_LoansAndLeasesReceivableAllowanceForLoanLossesPolicy_4410E36F288E976C000CB43382C1E27E" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_AD863704CD379320F543B43382C1973F_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_AD863704CD379320F543B43382C1973F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Premises and Equipment</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_AD863704CD379320F543B43382C1973F_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_AD863704CD379320F543B43382C1973F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_AD863704CD379320F543B43382C1973F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_AD863704CD379320F543B43382C1973F" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_AD863704CD379320F543B43382C1973F" xlink:type="arc" />
    <link:label id="lab_us-gaap_LesseeLeasesPolicyTextBlock_64AE93300A18D9D4F3E1B434BEFC3AFF_verboseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeasesPolicyTextBlock_64AE93300A18D9D4F3E1B434BEFC3AFF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Leases</link:label>
    <link:label id="lab_us-gaap_LesseeLeasesPolicyTextBlock_64AE93300A18D9D4F3E1B434BEFC3AFF_label_en-US" xlink:label="lab_us-gaap_LesseeLeasesPolicyTextBlock_64AE93300A18D9D4F3E1B434BEFC3AFF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Lessee, Leases [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LesseeLeasesPolicyTextBlock" xlink:label="loc_us-gaap_LesseeLeasesPolicyTextBlock_64AE93300A18D9D4F3E1B434BEFC3AFF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeLeasesPolicyTextBlock_64AE93300A18D9D4F3E1B434BEFC3AFF" xlink:to="lab_us-gaap_LesseeLeasesPolicyTextBlock_64AE93300A18D9D4F3E1B434BEFC3AFF" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForInvestmentsForeclosedAssetsPolicy_EAEFCA668B1CEEAD6027B43382C1711B_verboseLabel_en-US" xlink:label="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForInvestmentsForeclosedAssetsPolicy_EAEFCA668B1CEEAD6027B43382C1711B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other Real Estate Owned</link:label>
    <link:label id="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForInvestmentsForeclosedAssetsPolicy_EAEFCA668B1CEEAD6027B43382C1711B_label_en-US" xlink:label="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForInvestmentsForeclosedAssetsPolicy_EAEFCA668B1CEEAD6027B43382C1711B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Finance, Loan and Lease Receivables, Held for Investments, Foreclosed Assets Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinanceLoanAndLeaseReceivablesHeldForInvestmentsForeclosedAssetsPolicy" xlink:label="loc_us-gaap_FinanceLoanAndLeaseReceivablesHeldForInvestmentsForeclosedAssetsPolicy_EAEFCA668B1CEEAD6027B43382C1711B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLoanAndLeaseReceivablesHeldForInvestmentsForeclosedAssetsPolicy_EAEFCA668B1CEEAD6027B43382C1711B" xlink:to="lab_us-gaap_FinanceLoanAndLeaseReceivablesHeldForInvestmentsForeclosedAssetsPolicy_EAEFCA668B1CEEAD6027B43382C1711B" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_64E21E4B52D4D998CBCDB43382C28106_verboseLabel_en-US" xlink:label="lab_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_64E21E4B52D4D998CBCDB43382C28106" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Long-lived Assets</link:label>
    <link:label id="lab_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_64E21E4B52D4D998CBCDB43382C28106_label_en-US" xlink:label="lab_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_64E21E4B52D4D998CBCDB43382C28106" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock" xlink:label="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_64E21E4B52D4D998CBCDB43382C28106" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_64E21E4B52D4D998CBCDB43382C28106" xlink:to="lab_us-gaap_ImpairmentOrDisposalOfLongLivedAssetsPolicyTextBlock_64E21E4B52D4D998CBCDB43382C28106" xlink:type="arc" />
    <link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_177AAEC3BCACD026C3BDB43382C267EA_verboseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_177AAEC3BCACD026C3BDB43382C267EA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Business Combinations and Intangible Assets</link:label>
    <link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_177AAEC3BCACD026C3BDB43382C267EA_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_177AAEC3BCACD026C3BDB43382C267EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill and Intangible Assets, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_177AAEC3BCACD026C3BDB43382C267EA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_177AAEC3BCACD026C3BDB43382C267EA" xlink:to="lab_us-gaap_GoodwillAndIntangibleAssetsPolicyTextBlock_177AAEC3BCACD026C3BDB43382C267EA" xlink:type="arc" />
    <link:label id="lab_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B_verboseLabel_en-US" xlink:label="lab_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Non-Marketable Equity Securities</link:label>
    <link:label id="lab_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B_label_en-US" xlink:label="lab_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non Marketable Equity Securities [Policy Text Block]</link:label>
    <link:label id="lab_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B_documentation_en-US" xlink:label="lab_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Non-Marketable Equity Securities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_NonMarketableEquitySecuritiesPolicyTextBlock" xlink:label="loc_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B" xlink:to="lab_gbci_NonMarketableEquitySecuritiesPolicyTextBlock_79D75DF3B1F363187AEAB43382C2BB7B" xlink:type="arc" />
    <link:label id="lab_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36_terseLabel_en-US" xlink:label="lab_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bank-Owned Life Insurance</link:label>
    <link:label id="lab_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36_label_en-US" xlink:label="lab_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank-Owned Life Insurance Policy [Policy Text Block]</link:label>
    <link:label id="lab_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36_documentation_en-US" xlink:label="lab_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Bank-Owned Life Insurance Policy</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock" xlink:label="loc_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36" xlink:to="lab_gbci_BankOwnedLifeInsurancePolicyPolicyTextBlock_A00457DC64DCE21BE87AB43382C2BC36" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativesPolicyTextBlock_431357A61008BF4E8F18B43382C2DC66_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativesPolicyTextBlock_431357A61008BF4E8F18B43382C2DC66" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Derivatives and Hedging Activities</link:label>
    <link:label id="lab_us-gaap_DerivativesPolicyTextBlock_431357A61008BF4E8F18B43382C2DC66_label_en-US" xlink:label="lab_us-gaap_DerivativesPolicyTextBlock_431357A61008BF4E8F18B43382C2DC66" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivatives, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:label="loc_us-gaap_DerivativesPolicyTextBlock_431357A61008BF4E8F18B43382C2DC66" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativesPolicyTextBlock_431357A61008BF4E8F18B43382C2DC66" xlink:to="lab_us-gaap_DerivativesPolicyTextBlock_431357A61008BF4E8F18B43382C2DC66" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4C873442E22E3B9BCEAAB43382C28E53_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4C873442E22E3B9BCEAAB43382C28E53" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Stock-based Compensation</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4C873442E22E3B9BCEAAB43382C28E53_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4C873442E22E3B9BCEAAB43382C28E53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:label="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4C873442E22E3B9BCEAAB43382C28E53" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4C873442E22E3B9BCEAAB43382C28E53" xlink:to="lab_us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_4C873442E22E3B9BCEAAB43382C28E53" xlink:type="arc" />
    <link:label id="lab_us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost_F92CF096BAA49DB97E53B43382C26901_verboseLabel_en-US" xlink:label="lab_us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost_F92CF096BAA49DB97E53B43382C26901" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Advertising and Promotion</link:label>
    <link:label id="lab_us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost_F92CF096BAA49DB97E53B43382C26901_label_en-US" xlink:label="lab_us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost_F92CF096BAA49DB97E53B43382C26901" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost" xlink:label="loc_us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost_F92CF096BAA49DB97E53B43382C26901" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost_F92CF096BAA49DB97E53B43382C26901" xlink:to="lab_us-gaap_AdvertisingCostPolicyExpensedAdvertisingCost_F92CF096BAA49DB97E53B43382C26901" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxPolicyTextBlock_B730D6C2C7590951533DB43382C221BD_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock_B730D6C2C7590951533DB43382C221BD" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Income Taxes</link:label>
    <link:label id="lab_us-gaap_IncomeTaxPolicyTextBlock_B730D6C2C7590951533DB43382C221BD_label_en-US" xlink:label="lab_us-gaap_IncomeTaxPolicyTextBlock_B730D6C2C7590951533DB43382C221BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="loc_us-gaap_IncomeTaxPolicyTextBlock_B730D6C2C7590951533DB43382C221BD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxPolicyTextBlock_B730D6C2C7590951533DB43382C221BD" xlink:to="lab_us-gaap_IncomeTaxPolicyTextBlock_B730D6C2C7590951533DB43382C221BD" xlink:type="arc" />
    <link:label id="lab_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_ED2CB8FEE240A1EC8D1DB43382C203EB_verboseLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_ED2CB8FEE240A1EC8D1DB43382C203EB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Comprehensive Income</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_ED2CB8FEE240A1EC8D1DB43382C203EB_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_ED2CB8FEE240A1EC8D1DB43382C203EB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Comprehensive Income, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomePolicyPolicyTextBlock" xlink:label="loc_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_ED2CB8FEE240A1EC8D1DB43382C203EB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_ED2CB8FEE240A1EC8D1DB43382C203EB" xlink:to="lab_us-gaap_ComprehensiveIncomePolicyPolicyTextBlock_ED2CB8FEE240A1EC8D1DB43382C203EB" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarningsPerSharePolicyTextBlock_6B26C5EEBA58172E25D0B43382C2E4F4_verboseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerSharePolicyTextBlock_6B26C5EEBA58172E25D0B43382C2E4F4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Earnings Per Share</link:label>
    <link:label id="lab_us-gaap_EarningsPerSharePolicyTextBlock_6B26C5EEBA58172E25D0B43382C2E4F4_label_en-US" xlink:label="lab_us-gaap_EarningsPerSharePolicyTextBlock_6B26C5EEBA58172E25D0B43382C2E4F4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="loc_us-gaap_EarningsPerSharePolicyTextBlock_6B26C5EEBA58172E25D0B43382C2E4F4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerSharePolicyTextBlock_6B26C5EEBA58172E25D0B43382C2E4F4" xlink:to="lab_us-gaap_EarningsPerSharePolicyTextBlock_6B26C5EEBA58172E25D0B43382C2E4F4" xlink:type="arc" />
    <link:label id="lab_us-gaap_PriorPeriodReclassificationAdjustmentDescription_5855B238BD70310656A2B43382C3D401_verboseLabel_en-US" xlink:label="lab_us-gaap_PriorPeriodReclassificationAdjustmentDescription_5855B238BD70310656A2B43382C3D401" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Reclassifications</link:label>
    <link:label id="lab_us-gaap_PriorPeriodReclassificationAdjustmentDescription_5855B238BD70310656A2B43382C3D401_label_en-US" xlink:label="lab_us-gaap_PriorPeriodReclassificationAdjustmentDescription_5855B238BD70310656A2B43382C3D401" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:label="loc_us-gaap_PriorPeriodReclassificationAdjustmentDescription_5855B238BD70310656A2B43382C3D401" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PriorPeriodReclassificationAdjustmentDescription_5855B238BD70310656A2B43382C3D401" xlink:to="lab_us-gaap_PriorPeriodReclassificationAdjustmentDescription_5855B238BD70310656A2B43382C3D401" xlink:type="arc" />
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5A2DA354668318C5827FB43382C35197_verboseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5A2DA354668318C5827FB43382C35197" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Accounting Guidance Adopted in 2017 and Pending Adoption at December 31, 2017</link:label>
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5A2DA354668318C5827FB43382C35197_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5A2DA354668318C5827FB43382C35197" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5A2DA354668318C5827FB43382C35197" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5A2DA354668318C5827FB43382C35197" xlink:to="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_5A2DA354668318C5827FB43382C35197" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract_16A47FD5ECA4A0B205F4A4653A1E51BC_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract_16A47FD5ECA4A0B205F4A4653A1E51BC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loans Receivable and Allowance for Loan and Lease Losses</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract_16A47FD5ECA4A0B205F4A4653A1E51BC_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract_16A47FD5ECA4A0B205F4A4653A1E51BC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract_16A47FD5ECA4A0B205F4A4653A1E51BC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract_16A47FD5ECA4A0B205F4A4653A1E51BC" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLossAdditionalInformationAbstract_16A47FD5ECA4A0B205F4A4653A1E51BC" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment_80FB9913359FD8C13F1DA4653A1EDD6E_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment_80FB9913359FD8C13F1DA4653A1EDD6E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Individually evaluated for impairment</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment_80FB9913359FD8C13F1DA4653A1EDD6E_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment_80FB9913359FD8C13F1DA4653A1EDD6E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Individually Evaluated for Impairment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment" xlink:label="loc_us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment_80FB9913359FD8C13F1DA4653A1EDD6E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment_80FB9913359FD8C13F1DA4653A1EDD6E" xlink:to="lab_us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment_80FB9913359FD8C13F1DA4653A1EDD6E" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment_2557F86A8981499C834BA4653A1EFA3C_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment_2557F86A8981499C834BA4653A1EFA3C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Collectively evaluated for impairment</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment_2557F86A8981499C834BA4653A1EFA3C_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment_2557F86A8981499C834BA4653A1EFA3C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Collectively Evaluated for Impairment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment" xlink:label="loc_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment_2557F86A8981499C834BA4653A1EFA3C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment_2557F86A8981499C834BA4653A1EFA3C" xlink:to="lab_us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment_2557F86A8981499C834BA4653A1EFA3C" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1_7B0F7A56CC1174A034E2A4653A1EAAA6_verboseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1_7B0F7A56CC1174A034E2A4653A1EAAA6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Individually evaluated for impairment</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1_7B0F7A56CC1174A034E2A4653A1EAAA6_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1_7B0F7A56CC1174A034E2A4653A1EAAA6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1_7B0F7A56CC1174A034E2A4653A1EAAA6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1_7B0F7A56CC1174A034E2A4653A1EAAA6" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1_7B0F7A56CC1174A034E2A4653A1EAAA6" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment_559E4E3D8D1D96B49BE6A4653A1E8BBD_terseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment_559E4E3D8D1D96B49BE6A4653A1E8BBD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Collectively evaluated for impairment</link:label>
    <link:label id="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment_559E4E3D8D1D96B49BE6A4653A1E8BBD_label_en-US" xlink:label="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment_559E4E3D8D1D96B49BE6A4653A1E8BBD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment" xlink:label="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment_559E4E3D8D1D96B49BE6A4653A1E8BBD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment_559E4E3D8D1D96B49BE6A4653A1E8BBD" xlink:to="lab_us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment_559E4E3D8D1D96B49BE6A4653A1E8BBD" xlink:type="arc" />
    <link:label id="lab_us-gaap_LoansAndLeasesReceivableAllowance_6ACCA0E4C72C8034D4CAA4653A1E0198_totalLabel_en-US" xlink:label="lab_us-gaap_LoansAndLeasesReceivableAllowance_6ACCA0E4C72C8034D4CAA4653A1E0198" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total allowance for loan and lease losses</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LoansAndLeasesReceivableAllowance" xlink:label="loc_us-gaap_LoansAndLeasesReceivableAllowance_6ACCA0E4C72C8034D4CAA4653A1E0198" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LoansAndLeasesReceivableAllowance_6ACCA0E4C72C8034D4CAA4653A1E0198" xlink:to="lab_us-gaap_LoansAndLeasesReceivableAllowance_6ACCA0E4C72C8034D4CAA4653A1E0198" xlink:type="arc" />
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_2C215BDF8DDB80C0CFDE759878729713_verboseLabel_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_6A4F74B13A6E5669A4ADD77E09333A28" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Stock-based Compensation Plan</link:label>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_2C215BDF8DDB80C0CFDE759878729713_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_6A4F74B13A6E5669A4ADD77E09333A28" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disclosure of Compensation Related Costs, Share-based Payments [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_6A4F74B13A6E5669A4ADD77E09333A28" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_6A4F74B13A6E5669A4ADD77E09333A28" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_6A4F74B13A6E5669A4ADD77E09333A28" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_0738E8A091A294D6AAAC7598775F9867_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_74B71DF038715ED793EAEB819FD46AB7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_0738E8A091A294D6AAAC7598775F9867_label_en-US" xlink:label="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_74B71DF038715ED793EAEB819FD46AB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_74B71DF038715ED793EAEB819FD46AB7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_74B71DF038715ED793EAEB819FD46AB7" xlink:to="lab_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_74B71DF038715ED793EAEB819FD46AB7" xlink:type="arc" />
    <link:label id="lab_us-gaap_LandMember_AC9FCF4053C4290981DC7598776010C4_terseLabel_en-US" xlink:label="lab_us-gaap_LandMember_0CA687106C8F59A1ABF497B3E6FDD6E9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Land</link:label>
    <link:label id="lab_us-gaap_LandMember_AC9FCF4053C4290981DC7598776010C4_label_en-US" xlink:label="lab_us-gaap_LandMember_0CA687106C8F59A1ABF497B3E6FDD6E9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Land [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LandMember" xlink:label="loc_us-gaap_LandMember_0CA687106C8F59A1ABF497B3E6FDD6E9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LandMember_0CA687106C8F59A1ABF497B3E6FDD6E9" xlink:to="lab_us-gaap_LandMember_0CA687106C8F59A1ABF497B3E6FDD6E9" xlink:type="arc" />
    <link:label id="lab_us-gaap_BuildingMember_BB99BC288268EB0D7C7675987760A18D_terseLabel_en-US" xlink:label="lab_us-gaap_BuildingMember_AEC9B129483C5323943E577F4E18FCD5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Office buildings and construction in progress</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingMember" xlink:label="loc_us-gaap_BuildingMember_AEC9B129483C5323943E577F4E18FCD5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BuildingMember_AEC9B129483C5323943E577F4E18FCD5" xlink:to="lab_us-gaap_BuildingMember_AEC9B129483C5323943E577F4E18FCD5" xlink:type="arc" />
    <link:label id="lab_us-gaap_BuildingImprovementsMember_ACED2F407E1A35473F0375987760EFCF_terseLabel_en-US" xlink:label="lab_us-gaap_BuildingImprovementsMember_3DE90292AF2358D1BEC78F77296818C9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Leasehold improvements</link:label>
    <link:label id="lab_us-gaap_BuildingImprovementsMember_ACED2F407E1A35473F0375987760EFCF_label_en-US" xlink:label="lab_us-gaap_BuildingImprovementsMember_3DE90292AF2358D1BEC78F77296818C9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Building Improvements [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BuildingImprovementsMember" xlink:label="loc_us-gaap_BuildingImprovementsMember_3DE90292AF2358D1BEC78F77296818C9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BuildingImprovementsMember_3DE90292AF2358D1BEC78F77296818C9" xlink:to="lab_us-gaap_BuildingImprovementsMember_3DE90292AF2358D1BEC78F77296818C9" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_F1177D84E696AEAB734D75987760B6FC_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_2A2230D40E4155D68466925BDAE5C699" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Line Items]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentLineItems_F1177D84E696AEAB734D75987760B6FC_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentLineItems_2A2230D40E4155D68466925BDAE5C699" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentLineItems" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2A2230D40E4155D68466925BDAE5C699" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2A2230D40E4155D68466925BDAE5C699" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentLineItems_2A2230D40E4155D68466925BDAE5C699" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract_E6452F240502C938137675987760DF14_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract_EADEC61F75D95F9DB9DFBE6364BD76EF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Premises and Equipment, Net of Accumulated Depreciation</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract_E6452F240502C938137675987760DF14_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract_EADEC61F75D95F9DB9DFBE6364BD76EF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Net, by Type [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract_EADEC61F75D95F9DB9DFBE6364BD76EF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract_EADEC61F75D95F9DB9DFBE6364BD76EF" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNetByTypeAbstract_EADEC61F75D95F9DB9DFBE6364BD76EF" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_D3E76E81D03A9A46D436759877608AC0_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_5FDC0CB5669450F1A41346AED78495EB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Premises and equipment, gross</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentGross_D3E76E81D03A9A46D436759877608AC0_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentGross_5FDC0CB5669450F1A41346AED78495EB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_5FDC0CB5669450F1A41346AED78495EB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentGross_5FDC0CB5669450F1A41346AED78495EB" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentGross_5FDC0CB5669450F1A41346AED78495EB" xlink:type="arc" />
    <link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_00CB65E24D8E56663181759877604262_negatedLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_99C5CDA0987C500F9ACDA80B3C5C1EF2" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accumulated depreciation</link:label>
    <link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_00CB65E24D8E56663181759877604262_label_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_99C5CDA0987C500F9ACDA80B3C5C1EF2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_99C5CDA0987C500F9ACDA80B3C5C1EF2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_99C5CDA0987C500F9ACDA80B3C5C1EF2" xlink:to="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_99C5CDA0987C500F9ACDA80B3C5C1EF2" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_8027E5F734BADA352AC075987760F621_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_388A4E03ED97502EAAA401B197A1CBA8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Premises and equipment, net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_388A4E03ED97502EAAA401B197A1CBA8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_388A4E03ED97502EAAA401B197A1CBA8" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_388A4E03ED97502EAAA401B197A1CBA8" xlink:type="arc" />
    <link:label id="lab_us-gaap_ImpairmentOfInvestments_81AF8A6861BFBDC9F95D759878C9DACC_terseLabel_en-US" xlink:label="lab_us-gaap_ImpairmentOfInvestments_2CD770F4AF0B550EA125CC712CF50530" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other-than-temporary impairment on investment securities</link:label>
    <link:label id="lab_us-gaap_ImpairmentOfInvestments_81AF8A6861BFBDC9F95D759878C9DACC_label_en-US" xlink:label="lab_us-gaap_ImpairmentOfInvestments_2CD770F4AF0B550EA125CC712CF50530" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other than Temporary Impairment Losses, Investments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ImpairmentOfInvestments" xlink:label="loc_us-gaap_ImpairmentOfInvestments_2CD770F4AF0B550EA125CC712CF50530" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ImpairmentOfInvestments_2CD770F4AF0B550EA125CC712CF50530" xlink:to="lab_us-gaap_ImpairmentOfInvestments_2CD770F4AF0B550EA125CC712CF50530" xlink:type="arc" />
    <link:label id="lab_gbci_Numberofequitybasedcompensationarrangementplans._5966E0781B5865028CAE7598777643C0_terseLabel_en-US" xlink:label="lab_gbci_Numberofequitybasedcompensationarrangementplans._FFE03CCC37C959BBB9862E1173652C33" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of stock-based compensation plans</link:label>
    <link:label id="lab_gbci_Numberofequitybasedcompensationarrangementplans._5966E0781B5865028CAE7598777643C0_label_en-US" xlink:label="lab_gbci_Numberofequitybasedcompensationarrangementplans._FFE03CCC37C959BBB9862E1173652C33" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Number of equity-based compensation arrangement plans.</link:label>
    <link:label id="lab_gbci_Numberofequitybasedcompensationarrangementplans._5966E0781B5865028CAE7598777643C0_documentation_en-US" xlink:label="lab_gbci_Numberofequitybasedcompensationarrangementplans._FFE03CCC37C959BBB9862E1173652C33" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number of equity-based compensation arrangement plans.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_Numberofequitybasedcompensationarrangementplans." xlink:label="loc_gbci_Numberofequitybasedcompensationarrangementplans._FFE03CCC37C959BBB9862E1173652C33" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_Numberofequitybasedcompensationarrangementplans._FFE03CCC37C959BBB9862E1173652C33" xlink:to="lab_gbci_Numberofequitybasedcompensationarrangementplans._FFE03CCC37C959BBB9862E1173652C33" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_592C80E40D21544CBB01759877763C7F_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_B4DA530807075312A4E147A3B8050879" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Shares available to grant to employees and directors</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_592C80E40D21544CBB01759877763C7F_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_B4DA530807075312A4E147A3B8050879" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_B4DA530807075312A4E147A3B8050879" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_B4DA530807075312A4E147A3B8050879" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_B4DA530807075312A4E147A3B8050879" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract_0F5E23600E739D0C899D75987776BC98_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract_ED5256AA59835A04949EAF92EC295F5E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Restricted Stock Awards</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract_0F5E23600E739D0C899D75987776BC98_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract_ED5256AA59835A04949EAF92EC295F5E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract_ED5256AA59835A04949EAF92EC295F5E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract_ED5256AA59835A04949EAF92EC295F5E" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAdditionalDisclosuresAbstract_ED5256AA59835A04949EAF92EC295F5E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_F2473654BBD168B58CA4759877779B62_verboseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_BD653A1FB1B05E9DA5B3D02A3F99D0BF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Compensation expense related to awards</link:label>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_F2473654BBD168B58CA4759877779B62_label_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense_BD653A1FB1B05E9DA5B3D02A3F99D0BF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Allocated Share-based Compensation Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_BD653A1FB1B05E9DA5B3D02A3F99D0BF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense_BD653A1FB1B05E9DA5B3D02A3F99D0BF" xlink:to="lab_us-gaap_AllocatedShareBasedCompensationExpense_BD653A1FB1B05E9DA5B3D02A3F99D0BF" xlink:type="arc" />
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_6F7135BD92B693D415B975987777E18B_verboseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_43DC08ABD5A95D96B02CEA72C39B7068" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Income tax benefit related to awards</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_6F7135BD92B693D415B975987777E18B_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_43DC08ABD5A95D96B02CEA72C39B7068" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee Service Share-based Compensation, Tax Benefit from Compensation Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_43DC08ABD5A95D96B02CEA72C39B7068" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_43DC08ABD5A95D96B02CEA72C39B7068" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_43DC08ABD5A95D96B02CEA72C39B7068" xlink:type="arc" />
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_E2B7D485B90007A13AED7598777710B0_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_DCBF14CCBAFB5F0DBCC4AD0A0BA309B0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrecognized compensation expense</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_E2B7D485B90007A13AED7598777710B0_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_DCBF14CCBAFB5F0DBCC4AD0A0BA309B0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_DCBF14CCBAFB5F0DBCC4AD0A0BA309B0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_DCBF14CCBAFB5F0DBCC4AD0A0BA309B0" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_DCBF14CCBAFB5F0DBCC4AD0A0BA309B0" xlink:type="arc" />
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_F08C322EC543D9FE04E0759877772F4D_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_9D82C3D881F557D59E5203C3F85E5496" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unrecognized compensation expense, recognized over weighted-average period</link:label>
    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_F08C322EC543D9FE04E0759877772F4D_label_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_9D82C3D881F557D59E5203C3F85E5496" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_9D82C3D881F557D59E5203C3F85E5496" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_9D82C3D881F557D59E5203C3F85E5496" xlink:to="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_9D82C3D881F557D59E5203C3F85E5496" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_032166E3DE69CFA7B18F759877775CD8_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_425B6963A6D554B8934470CCBA026CAA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Fair value of awards that vested</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_032166E3DE69CFA7B18F759877775CD8_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_425B6963A6D554B8934470CCBA026CAA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_425B6963A6D554B8934470CCBA026CAA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_425B6963A6D554B8934470CCBA026CAA" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_425B6963A6D554B8934470CCBA026CAA" xlink:type="arc" />
    <link:label id="lab_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_BE41CCBAE8665D9C714D75987777F3FE_terseLabel_en-US" xlink:label="lab_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_174176FF08C15F89B46C82CB675B18AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax benefit of awards that vested</link:label>
    <link:label id="lab_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_BE41CCBAE8665D9C714D75987777F3FE_label_en-US" xlink:label="lab_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_174176FF08C15F89B46C82CB675B18AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Tax Benefit</link:label>
    <link:label id="lab_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_BE41CCBAE8665D9C714D75987777F3FE_documentation_en-US" xlink:label="lab_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_174176FF08C15F89B46C82CB675B18AC" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Tax Benefit</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit" xlink:label="loc_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_174176FF08C15F89B46C82CB675B18AC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_174176FF08C15F89B46C82CB675B18AC" xlink:to="lab_gbci_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTaxBenefit_174176FF08C15F89B46C82CB675B18AC" xlink:type="arc" />
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_E5B9EAC8012FD4477E1D75987777D1F8_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_70700C895F3E5A33A1CC2064447C5E88" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Average remaining contractual term on non-vested awards</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_E5B9EAC8012FD4477E1D75987777D1F8_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_70700C895F3E5A33A1CC2064447C5E88" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_70700C895F3E5A33A1CC2064447C5E88" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_70700C895F3E5A33A1CC2064447C5E88" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsOutstandingWeightedAverageRemainingContractualTerms_70700C895F3E5A33A1CC2064447C5E88" xlink:type="arc" />
    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_7144355C22B2515E95147598777724FC_terseLabel_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_AA18D587FDE1549E91FA1730FED61700" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Aggregate intrinsic value of non-vested awards</link:label>
    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_7144355C22B2515E95147598777724FC_label_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_AA18D587FDE1549E91FA1730FED61700" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_AA18D587FDE1549E91FA1730FED61700" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_AA18D587FDE1549E91FA1730FED61700" xlink:to="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_AA18D587FDE1549E91FA1730FED61700" xlink:type="arc" />
    <link:label id="lab_us-gaap_QuarterlyFinancialInformationTextBlock_BA6AB3DE4A9433834F4375987928370D_verboseLabel_en-US" xlink:label="lab_us-gaap_QuarterlyFinancialInformationTextBlock_83A8A16E1E18545AB05F4E373BF9D5E7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Unaudited Quarterly Financial Data (Condensed)</link:label>
    <link:label id="lab_us-gaap_QuarterlyFinancialInformationTextBlock_BA6AB3DE4A9433834F4375987928370D_label_en-US" xlink:label="lab_us-gaap_QuarterlyFinancialInformationTextBlock_83A8A16E1E18545AB05F4E373BF9D5E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Quarterly Financial Information [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_QuarterlyFinancialInformationTextBlock" xlink:label="loc_us-gaap_QuarterlyFinancialInformationTextBlock_83A8A16E1E18545AB05F4E373BF9D5E7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_QuarterlyFinancialInformationTextBlock_83A8A16E1E18545AB05F4E373BF9D5E7" xlink:to="lab_us-gaap_QuarterlyFinancialInformationTextBlock_83A8A16E1E18545AB05F4E373BF9D5E7" xlink:type="arc" />
    <link:label id="lab_gbci_CapitalLeasesAndOperatingLeasesFutureMinimumPaymentsDueAbstract_08482DD8EF3C66D1ED27A4679CF0CD8D_label_en-US" xlink:label="lab_gbci_CapitalLeasesAndOperatingLeasesFutureMinimumPaymentsDueAbstract_08482DD8EF3C66D1ED27A4679CF0CD8D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases and Operating Leases Future Minimum Payments Due [Abstract]</link:label>
    <link:label id="lab_gbci_CapitalLeasesAndOperatingLeasesFutureMinimumPaymentsDueAbstract_08482DD8EF3C66D1ED27A4679CF0CD8D_documentation_en-US" xlink:label="lab_gbci_CapitalLeasesAndOperatingLeasesFutureMinimumPaymentsDueAbstract_08482DD8EF3C66D1ED27A4679CF0CD8D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Capital leases and operating leases future minimum payments due.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CapitalLeasesAndOperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_gbci_CapitalLeasesAndOperatingLeasesFutureMinimumPaymentsDueAbstract_08482DD8EF3C66D1ED27A4679CF0CD8D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CapitalLeasesAndOperatingLeasesFutureMinimumPaymentsDueAbstract_08482DD8EF3C66D1ED27A4679CF0CD8D" xlink:to="lab_gbci_CapitalLeasesAndOperatingLeasesFutureMinimumPaymentsDueAbstract_08482DD8EF3C66D1ED27A4679CF0CD8D" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract_5F5BA972648B05DA5234A4679CF066AC_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract_5F5BA972648B05DA5234A4679CF066AC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital Leases</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract_5F5BA972648B05DA5234A4679CF066AC_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract_5F5BA972648B05DA5234A4679CF066AC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract_5F5BA972648B05DA5234A4679CF066AC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract_5F5BA972648B05DA5234A4679CF066AC" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueAbstract_5F5BA972648B05DA5234A4679CF066AC" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_39CF6BD275F4D72DB271A4679CF00F23_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_39CF6BD275F4D72DB271A4679CF00F23" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2018</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_39CF6BD275F4D72DB271A4679CF00F23_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_39CF6BD275F4D72DB271A4679CF00F23" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments Due, Next Twelve Months</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_39CF6BD275F4D72DB271A4679CF00F23" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_39CF6BD275F4D72DB271A4679CF00F23" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent_39CF6BD275F4D72DB271A4679CF00F23" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_8CA11777623DAA71ED82A4679CF018F6_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_8CA11777623DAA71ED82A4679CF018F6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2019</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_8CA11777623DAA71ED82A4679CF018F6_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_8CA11777623DAA71ED82A4679CF018F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments Due in Two Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_8CA11777623DAA71ED82A4679CF018F6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_8CA11777623DAA71ED82A4679CF018F6" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears_8CA11777623DAA71ED82A4679CF018F6" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_78623C0D1D235999F209A4679CF0F187_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_78623C0D1D235999F209A4679CF0F187" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2020</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_78623C0D1D235999F209A4679CF0F187_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_78623C0D1D235999F209A4679CF0F187" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments Due in Three Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_78623C0D1D235999F209A4679CF0F187" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_78623C0D1D235999F209A4679CF0F187" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears_78623C0D1D235999F209A4679CF0F187" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_E40AAC99888D0261971BA4679CF07CDE_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_E40AAC99888D0261971BA4679CF07CDE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2021</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_E40AAC99888D0261971BA4679CF07CDE_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_E40AAC99888D0261971BA4679CF07CDE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments Due in Four Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_E40AAC99888D0261971BA4679CF07CDE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_E40AAC99888D0261971BA4679CF07CDE" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears_E40AAC99888D0261971BA4679CF07CDE" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_B9E043A9F212C9AFF49EA4679CF0F7D3_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_B9E043A9F212C9AFF49EA4679CF0F7D3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2022</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_B9E043A9F212C9AFF49EA4679CF0F7D3_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_B9E043A9F212C9AFF49EA4679CF0F7D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments Due in Five Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_B9E043A9F212C9AFF49EA4679CF0F7D3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_B9E043A9F212C9AFF49EA4679CF0F7D3" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears_B9E043A9F212C9AFF49EA4679CF0F7D3" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_0B8F843CC861FB676883A4679CF06EDA_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_0B8F843CC861FB676883A4679CF06EDA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_0B8F843CC861FB676883A4679CF06EDA_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_0B8F843CC861FB676883A4679CF06EDA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments Due Thereafter</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_0B8F843CC861FB676883A4679CF06EDA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_0B8F843CC861FB676883A4679CF06EDA" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter_0B8F843CC861FB676883A4679CF06EDA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_285231E3AB559CCBF2FDA4679CF03CB3_totalLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_285231E3AB559CCBF2FDA4679CF03CB3" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total minimum lease payments</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_285231E3AB559CCBF2FDA4679CF03CB3_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_285231E3AB559CCBF2FDA4679CF03CB3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments Due</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_285231E3AB559CCBF2FDA4679CF03CB3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_285231E3AB559CCBF2FDA4679CF03CB3" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsDue_285231E3AB559CCBF2FDA4679CF03CB3" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_CE6660A27EAD58BB3E1CA4679CF0DFB7_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_CE6660A27EAD58BB3E1CA4679CF0DFB7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less: Amount representing interest</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_CE6660A27EAD58BB3E1CA4679CF0DFB7_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_CE6660A27EAD58BB3E1CA4679CF0DFB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments, Interest Included in Payments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_CE6660A27EAD58BB3E1CA4679CF0DFB7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_CE6660A27EAD58BB3E1CA4679CF0DFB7" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments_CE6660A27EAD58BB3E1CA4679CF0DFB7" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5B55CFE55559A5DB45D4A4679CF02E50_totalLabel_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5B55CFE55559A5DB45D4A4679CF02E50" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Present value of minimum lease payments</link:label>
    <link:label id="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5B55CFE55559A5DB45D4A4679CF02E50_label_en-US" xlink:label="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5B55CFE55559A5DB45D4A4679CF02E50" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments" xlink:label="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5B55CFE55559A5DB45D4A4679CF02E50" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5B55CFE55559A5DB45D4A4679CF02E50" xlink:to="lab_us-gaap_CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments_5B55CFE55559A5DB45D4A4679CF02E50" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeaseObligationsCurrent_DD8BD368D380C5739029A4679CF0BEBA_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligationsCurrent_DD8BD368D380C5739029A4679CF0BEBA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less: Current portion of obligations under capital leases</link:label>
    <link:label id="lab_us-gaap_CapitalLeaseObligationsCurrent_DD8BD368D380C5739029A4679CF0BEBA_label_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligationsCurrent_DD8BD368D380C5739029A4679CF0BEBA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Lease Obligations, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeaseObligationsCurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsCurrent_DD8BD368D380C5739029A4679CF0BEBA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeaseObligationsCurrent_DD8BD368D380C5739029A4679CF0BEBA" xlink:to="lab_us-gaap_CapitalLeaseObligationsCurrent_DD8BD368D380C5739029A4679CF0BEBA" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalLeaseObligationsNoncurrent_B9BEB9526040A01C0159A4679CF0A045_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligationsNoncurrent_B9BEB9526040A01C0159A4679CF0A045" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term portion of obligations under capital leases</link:label>
    <link:label id="lab_us-gaap_CapitalLeaseObligationsNoncurrent_B9BEB9526040A01C0159A4679CF0A045_label_en-US" xlink:label="lab_us-gaap_CapitalLeaseObligationsNoncurrent_B9BEB9526040A01C0159A4679CF0A045" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Lease Obligations, Noncurrent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CapitalLeaseObligationsNoncurrent" xlink:label="loc_us-gaap_CapitalLeaseObligationsNoncurrent_B9BEB9526040A01C0159A4679CF0A045" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalLeaseObligationsNoncurrent_B9BEB9526040A01C0159A4679CF0A045" xlink:to="lab_us-gaap_CapitalLeaseObligationsNoncurrent_B9BEB9526040A01C0159A4679CF0A045" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_0315582F39DEA923C0F1A4679CF0193D_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_0315582F39DEA923C0F1A4679CF0193D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Leases</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_0315582F39DEA923C0F1A4679CF0193D_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_0315582F39DEA923C0F1A4679CF0193D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_0315582F39DEA923C0F1A4679CF0193D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_0315582F39DEA923C0F1A4679CF0193D" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract_0315582F39DEA923C0F1A4679CF0193D" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_795E048B8E4C8E95FB8EA4679CF0D746_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_795E048B8E4C8E95FB8EA4679CF0D746" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2018</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_795E048B8E4C8E95FB8EA4679CF0D746_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_795E048B8E4C8E95FB8EA4679CF0D746" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments Due, Next Twelve Months</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_795E048B8E4C8E95FB8EA4679CF0D746" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_795E048B8E4C8E95FB8EA4679CF0D746" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_795E048B8E4C8E95FB8EA4679CF0D746" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_12316E588D4284FF9CB5A4679CF0D34B_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_12316E588D4284FF9CB5A4679CF0D34B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2019</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_12316E588D4284FF9CB5A4679CF0D34B_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_12316E588D4284FF9CB5A4679CF0D34B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Two Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_12316E588D4284FF9CB5A4679CF0D34B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_12316E588D4284FF9CB5A4679CF0D34B" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_12316E588D4284FF9CB5A4679CF0D34B" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_03DDE8D081178F91A58BA4679CF00B31_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_03DDE8D081178F91A58BA4679CF00B31" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2020</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_03DDE8D081178F91A58BA4679CF00B31_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_03DDE8D081178F91A58BA4679CF00B31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Three Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_03DDE8D081178F91A58BA4679CF00B31" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_03DDE8D081178F91A58BA4679CF00B31" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_03DDE8D081178F91A58BA4679CF00B31" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_C692D0B2EAA7D80310BDA4679CF0D429_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_C692D0B2EAA7D80310BDA4679CF0D429" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2021</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_C692D0B2EAA7D80310BDA4679CF0D429_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_C692D0B2EAA7D80310BDA4679CF0D429" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Four Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_C692D0B2EAA7D80310BDA4679CF0D429" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_C692D0B2EAA7D80310BDA4679CF0D429" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_C692D0B2EAA7D80310BDA4679CF0D429" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_75AB8B31A7473D9CFA47A4679CF00B1C_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_75AB8B31A7473D9CFA47A4679CF00B1C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2022</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_75AB8B31A7473D9CFA47A4679CF00B1C_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_75AB8B31A7473D9CFA47A4679CF00B1C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Five Years</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_75AB8B31A7473D9CFA47A4679CF00B1C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_75AB8B31A7473D9CFA47A4679CF00B1C" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_75AB8B31A7473D9CFA47A4679CF00B1C" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_3DE6F282CEFB6B8E48D1A4679CF0714A_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_3DE6F282CEFB6B8E48D1A4679CF0714A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_3DE6F282CEFB6B8E48D1A4679CF0714A_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_3DE6F282CEFB6B8E48D1A4679CF0714A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due Thereafter</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_3DE6F282CEFB6B8E48D1A4679CF0714A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_3DE6F282CEFB6B8E48D1A4679CF0714A" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter_3DE6F282CEFB6B8E48D1A4679CF0714A" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_B0422E81C3EDB0C8DC91A4679CF0E8FA_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_B0422E81C3EDB0C8DC91A4679CF0E8FA" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Minimum Lease Payments</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_B0422E81C3EDB0C8DC91A4679CF0E8FA_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_B0422E81C3EDB0C8DC91A4679CF0E8FA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Leases, Future Minimum Payments Due</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_B0422E81C3EDB0C8DC91A4679CF0E8FA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_B0422E81C3EDB0C8DC91A4679CF0E8FA" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_B0422E81C3EDB0C8DC91A4679CF0E8FA" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A_terseLabel_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A_label_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating And Capital Leases Future Minimum Payments Due [Abstract]</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A_documentation_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating and capital leases future minimum payments due.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract" xlink:label="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A" xlink:to="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueAbstract_CD264C9699733088E469A4679CF06B4A" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1_terseLabel_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2018</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1_label_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating and Capital Leases Future Minimum Payments Due Current</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1_documentation_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating and capital leases future minimum payments due current.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1" xlink:to="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueCurrent_34287EF25024DD5E0B07A4679CF015A1" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7_terseLabel_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2019</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7_label_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating and Capital Leases Future Minimum Payments Due in Two Years</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7_documentation_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating and capital leases future minimum payments due in two years.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7" xlink:to="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInTwoYears_685AB2C871A7EC884AD9A4679CF004C7" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C_terseLabel_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2020</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C_label_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating and Capital Leases Future Minimum Payments Due in Three Years</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C_documentation_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating and capital leases future minimum payments due in three years.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C" xlink:to="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInThreeYears_9C94AEC4333226ABB7FCA4679CF0CC0C" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A_terseLabel_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2021</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A_label_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating and Capital Leases Future Minimum Payments Due in Four Years</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A_documentation_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating and capital leases future minimum payments due in four years.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A" xlink:to="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFourYears_4C884A79EB6609CE3F92A4679CF05C7A" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795_terseLabel_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">For the Year Ended December 31, 2022</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795_label_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating and Capital Leases Future Minimum Payments Due in Five Years</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795_documentation_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating and capital leases future minimum payments due in five years.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795" xlink:to="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueInFiveYears_730DB2881164A7626D95A4679CF08795" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF_terseLabel_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF_label_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating and Capital Leases Future Minimum Payments Due Thereafter</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF_documentation_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating and capital leases future minimum payments due thereafter.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter" xlink:label="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF" xlink:to="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDueThereafter_F59B0BFAD0D8BA5B40C7A4679CF04BCF" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01_totalLabel_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Minimum Lease Payments</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01_label_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating and Capital Leases Future Minimum Payments Due</link:label>
    <link:label id="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01_documentation_en-US" xlink:label="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating and capital leases future minimum payments due.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue" xlink:label="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01" xlink:to="lab_gbci_OperatingAndCapitalLeasesFutureMinimumPaymentsDue_6C0FA5963FB2219AD5CFA4679CF05B01" xlink:type="arc" />
    <link:label id="lab_gbci_DocumentAndEntityInformationAbstract_3A4120746F19B230F4AA9AD14521D8CF_label_en-US" xlink:label="lab_gbci_DocumentAndEntityInformationAbstract_3A4120746F19B230F4AA9AD14521D8CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document and Entity Information [Abstract]</link:label>
    <link:label id="lab_gbci_DocumentAndEntityInformationAbstract_3A4120746F19B230F4AA9AD14521D8CF_documentation_en-US" xlink:label="lab_gbci_DocumentAndEntityInformationAbstract_3A4120746F19B230F4AA9AD14521D8CF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Document and entity information.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DocumentAndEntityInformationAbstract" xlink:label="loc_gbci_DocumentAndEntityInformationAbstract_3A4120746F19B230F4AA9AD14521D8CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DocumentAndEntityInformationAbstract_3A4120746F19B230F4AA9AD14521D8CF" xlink:to="lab_gbci_DocumentAndEntityInformationAbstract_3A4120746F19B230F4AA9AD14521D8CF" xlink:type="arc" />
    <link:label id="lab_dei_EntityRegistrantName_7EEFB6DCCCF4BF77DC0E9AD14524B3BF_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName_7EEFB6DCCCF4BF77DC0E9AD14524B3BF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_7EEFB6DCCCF4BF77DC0E9AD14524B3BF_label_en-US" xlink:label="lab_dei_EntityRegistrantName_7EEFB6DCCCF4BF77DC0E9AD14524B3BF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_7EEFB6DCCCF4BF77DC0E9AD14524B3BF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityRegistrantName_7EEFB6DCCCF4BF77DC0E9AD14524B3BF" xlink:to="lab_dei_EntityRegistrantName_7EEFB6DCCCF4BF77DC0E9AD14524B3BF" xlink:type="arc" />
    <link:label id="lab_dei_TradingSymbol_B6B01E9FDD42E186E3BB9AD146BC8842_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol_B6B01E9FDD42E186E3BB9AD146BC8842" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:label id="lab_dei_TradingSymbol_B6B01E9FDD42E186E3BB9AD146BC8842_label_en-US" xlink:label="lab_dei_TradingSymbol_B6B01E9FDD42E186E3BB9AD146BC8842" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_B6B01E9FDD42E186E3BB9AD146BC8842" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol_B6B01E9FDD42E186E3BB9AD146BC8842" xlink:to="lab_dei_TradingSymbol_B6B01E9FDD42E186E3BB9AD146BC8842" xlink:type="arc" />
    <link:label id="lab_dei_EntityCentralIndexKey_F200305D26ABA2E066859AD145266955_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey_F200305D26ABA2E066859AD145266955" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_F200305D26ABA2E066859AD145266955_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey_F200305D26ABA2E066859AD145266955" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_F200305D26ABA2E066859AD145266955" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey_F200305D26ABA2E066859AD145266955" xlink:to="lab_dei_EntityCentralIndexKey_F200305D26ABA2E066859AD145266955" xlink:type="arc" />
    <link:label id="lab_dei_DocumentType_5F273EE35B1C655256EB9AD14527B302_terseLabel_en-US" xlink:label="lab_dei_DocumentType_5F273EE35B1C655256EB9AD14527B302" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_5F273EE35B1C655256EB9AD14527B302_label_en-US" xlink:label="lab_dei_DocumentType_5F273EE35B1C655256EB9AD14527B302" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_5F273EE35B1C655256EB9AD14527B302" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType_5F273EE35B1C655256EB9AD14527B302" xlink:to="lab_dei_DocumentType_5F273EE35B1C655256EB9AD14527B302" xlink:type="arc" />
    <link:label id="lab_dei_DocumentPeriodEndDate_4E67A42872BE387221129AD145278EB5_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_4E67A42872BE387221129AD145278EB5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_4E67A42872BE387221129AD145278EB5_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate_4E67A42872BE387221129AD145278EB5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_4E67A42872BE387221129AD145278EB5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate_4E67A42872BE387221129AD145278EB5" xlink:to="lab_dei_DocumentPeriodEndDate_4E67A42872BE387221129AD145278EB5" xlink:type="arc" />
    <link:label id="lab_dei_AmendmentFlag_5D1A295BDE103F7119F29AD145276D6B_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag_5D1A295BDE103F7119F29AD145276D6B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_5D1A295BDE103F7119F29AD145276D6B_label_en-US" xlink:label="lab_dei_AmendmentFlag_5D1A295BDE103F7119F29AD145276D6B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_5D1A295BDE103F7119F29AD145276D6B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag_5D1A295BDE103F7119F29AD145276D6B" xlink:to="lab_dei_AmendmentFlag_5D1A295BDE103F7119F29AD145276D6B" xlink:type="arc" />
    <link:label id="lab_dei_DocumentFiscalYearFocus_05CC4D5D3D76CA4451119AD14527B877_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_05CC4D5D3D76CA4451119AD14527B877" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalYearFocus_05CC4D5D3D76CA4451119AD14527B877_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus_05CC4D5D3D76CA4451119AD14527B877" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_05CC4D5D3D76CA4451119AD14527B877" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalYearFocus_05CC4D5D3D76CA4451119AD14527B877" xlink:to="lab_dei_DocumentFiscalYearFocus_05CC4D5D3D76CA4451119AD14527B877" xlink:type="arc" />
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_FE13180CB06219D6D3749AD145277E2E_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus_FE13180CB06219D6D3749AD145277E2E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_FE13180CB06219D6D3749AD145277E2E_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus_FE13180CB06219D6D3749AD145277E2E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_FE13180CB06219D6D3749AD145277E2E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus_FE13180CB06219D6D3749AD145277E2E" xlink:to="lab_dei_DocumentFiscalPeriodFocus_FE13180CB06219D6D3749AD145277E2E" xlink:type="arc" />
    <link:label id="lab_dei_CurrentFiscalYearEndDate_71A6A7655DC0752C7AE09AD14527CD08_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_71A6A7655DC0752C7AE09AD14527CD08" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_71A6A7655DC0752C7AE09AD14527CD08_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate_71A6A7655DC0752C7AE09AD14527CD08" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_71A6A7655DC0752C7AE09AD14527CD08" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate_71A6A7655DC0752C7AE09AD14527CD08" xlink:to="lab_dei_CurrentFiscalYearEndDate_71A6A7655DC0752C7AE09AD14527CD08" xlink:type="arc" />
    <link:label id="lab_dei_EntityWellKnownSeasonedIssuer_B667C93F520EA0B0587B9AD14527AD8A_terseLabel_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer_B667C93F520EA0B0587B9AD14527AD8A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:label id="lab_dei_EntityWellKnownSeasonedIssuer_B667C93F520EA0B0587B9AD14527AD8A_label_en-US" xlink:label="lab_dei_EntityWellKnownSeasonedIssuer_B667C93F520EA0B0587B9AD14527AD8A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_B667C93F520EA0B0587B9AD14527AD8A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityWellKnownSeasonedIssuer_B667C93F520EA0B0587B9AD14527AD8A" xlink:to="lab_dei_EntityWellKnownSeasonedIssuer_B667C93F520EA0B0587B9AD14527AD8A" xlink:type="arc" />
    <link:label id="lab_dei_EntityVoluntaryFilers_2A0C67D13AA85C763BFE9AD14527CB18_terseLabel_en-US" xlink:label="lab_dei_EntityVoluntaryFilers_2A0C67D13AA85C763BFE9AD14527CB18" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Voluntary Filers</link:label>
    <link:label id="lab_dei_EntityVoluntaryFilers_2A0C67D13AA85C763BFE9AD14527CB18_label_en-US" xlink:label="lab_dei_EntityVoluntaryFilers_2A0C67D13AA85C763BFE9AD14527CB18" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Voluntary Filers</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_2A0C67D13AA85C763BFE9AD14527CB18" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityVoluntaryFilers_2A0C67D13AA85C763BFE9AD14527CB18" xlink:to="lab_dei_EntityVoluntaryFilers_2A0C67D13AA85C763BFE9AD14527CB18" xlink:type="arc" />
    <link:label id="lab_dei_EntityCurrentReportingStatus_BDFB2323D8DD11C77F219AD145271EC0_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_BDFB2323D8DD11C77F219AD145271EC0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:label id="lab_dei_EntityCurrentReportingStatus_BDFB2323D8DD11C77F219AD145271EC0_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus_BDFB2323D8DD11C77F219AD145271EC0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_BDFB2323D8DD11C77F219AD145271EC0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus_BDFB2323D8DD11C77F219AD145271EC0" xlink:to="lab_dei_EntityCurrentReportingStatus_BDFB2323D8DD11C77F219AD145271EC0" xlink:type="arc" />
    <link:label id="lab_dei_EntityFilerCategory_308B4DCEF8133F81D4739AD1452714BD_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory_308B4DCEF8133F81D4739AD1452714BD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:label id="lab_dei_EntityFilerCategory_308B4DCEF8133F81D4739AD1452714BD_label_en-US" xlink:label="lab_dei_EntityFilerCategory_308B4DCEF8133F81D4739AD1452714BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Filer Category</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_308B4DCEF8133F81D4739AD1452714BD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityFilerCategory_308B4DCEF8133F81D4739AD1452714BD" xlink:to="lab_dei_EntityFilerCategory_308B4DCEF8133F81D4739AD1452714BD" xlink:type="arc" />
    <link:label id="lab_dei_EntityPublicFloat_F7481C4CB3AAB39B948E9AD145275247_terseLabel_en-US" xlink:label="lab_dei_EntityPublicFloat_F7481C4CB3AAB39B948E9AD145275247" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Public Float</link:label>
    <link:label id="lab_dei_EntityPublicFloat_F7481C4CB3AAB39B948E9AD145275247_label_en-US" xlink:label="lab_dei_EntityPublicFloat_F7481C4CB3AAB39B948E9AD145275247" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Public Float</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_F7481C4CB3AAB39B948E9AD145275247" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityPublicFloat_F7481C4CB3AAB39B948E9AD145275247" xlink:to="lab_dei_EntityPublicFloat_F7481C4CB3AAB39B948E9AD145275247" xlink:type="arc" />
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_A7415E8066C6AC7E39629AD14527B869_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_A7415E8066C6AC7E39629AD14527B869" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_A7415E8066C6AC7E39629AD14527B869_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding_A7415E8066C6AC7E39629AD14527B869" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_A7415E8066C6AC7E39629AD14527B869" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding_A7415E8066C6AC7E39629AD14527B869" xlink:to="lab_dei_EntityCommonStockSharesOutstanding_A7415E8066C6AC7E39629AD14527B869" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_A7BF4EC225A7AAB54BE6759879048BA0_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_BDD3BABECA5E5EBB80E92CCFD31010DC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Other Expenses</link:label>
    <link:label id="lab_us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_A7BF4EC225A7AAB54BE6759879048BA0_label_en-US" xlink:label="lab_us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_BDD3BABECA5E5EBB80E92CCFD31010DC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Other Operating Cost and Expense, by Component [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock" xlink:label="loc_us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_BDD3BABECA5E5EBB80E92CCFD31010DC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_BDD3BABECA5E5EBB80E92CCFD31010DC" xlink:to="lab_us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock_BDD3BABECA5E5EBB80E92CCFD31010DC" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_A51312AD0E771BC0132F759876E7AF0E_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_12CB7CAC328E561A86974077DBA4F43C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Activity for restricted stock awards</link:label>
    <link:label id="lab_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_A51312AD0E771BC0132F759876E7AF0E_label_en-US" xlink:label="lab_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_12CB7CAC328E561A86974077DBA4F43C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_12CB7CAC328E561A86974077DBA4F43C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_12CB7CAC328E561A86974077DBA4F43C" xlink:to="lab_us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock_12CB7CAC328E561A86974077DBA4F43C" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_B66D4E40389D9A58340DA573A89ACE75_verboseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_B66D4E40389D9A58340DA573A89ACE75" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Available-for-sale</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_B66D4E40389D9A58340DA573A89ACE75_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_B66D4E40389D9A58340DA573A89ACE75" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_B66D4E40389D9A58340DA573A89ACE75" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_B66D4E40389D9A58340DA573A89ACE75" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_B66D4E40389D9A58340DA573A89ACE75" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_B5A3C4A4C28FD24158D1A573A89ACF25_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_B5A3C4A4C28FD24158D1A573A89ACF25" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-sale, Fair Value</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_B5A3C4A4C28FD24158D1A573A89ACF25_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_B5A3C4A4C28FD24158D1A573A89ACF25" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_B5A3C4A4C28FD24158D1A573A89ACF25" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_B5A3C4A4C28FD24158D1A573A89ACF25" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValueAbstract_B5A3C4A4C28FD24158D1A573A89ACF25" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_9D58DAC5B7D000166AEAA573A89AF35E_verboseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_9D58DAC5B7D000166AEAA573A89AF35E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Less than 12 Months</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_9D58DAC5B7D000166AEAA573A89AF35E_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_9D58DAC5B7D000166AEAA573A89AF35E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_9D58DAC5B7D000166AEAA573A89AF35E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_9D58DAC5B7D000166AEAA573A89AF35E" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_9D58DAC5B7D000166AEAA573A89AF35E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_580F3797DA80B1365B0EA573A89AE858_verboseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_580F3797DA80B1365B0EA573A89AE858" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">12 Months or More</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_580F3797DA80B1365B0EA573A89AE858_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_580F3797DA80B1365B0EA573A89AE858" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_580F3797DA80B1365B0EA573A89AE858" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_580F3797DA80B1365B0EA573A89AE858" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_580F3797DA80B1365B0EA573A89AE858" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_D374212DA622CB99B447A573A89A3006_totalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_D374212DA622CB99B447A573A89A3006" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_D374212DA622CB99B447A573A89A3006_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_D374212DA622CB99B447A573A89A3006" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_D374212DA622CB99B447A573A89A3006" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_D374212DA622CB99B447A573A89A3006" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_D374212DA622CB99B447A573A89A3006" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_67FB879C1AE558D5B75CA573A89AF66E_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_67FB879C1AE558D5B75CA573A89AF66E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-sale, Unrealized Loss</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_67FB879C1AE558D5B75CA573A89AF66E_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_67FB879C1AE558D5B75CA573A89AF66E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_67FB879C1AE558D5B75CA573A89AF66E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_67FB879C1AE558D5B75CA573A89AF66E" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_67FB879C1AE558D5B75CA573A89AF66E" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_95A1179BF35AED582FF3A573A89A1517_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_95A1179BF35AED582FF3A573A89A1517" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Less than 12 Months</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_95A1179BF35AED582FF3A573A89A1517_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_95A1179BF35AED582FF3A573A89A1517" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_95A1179BF35AED582FF3A573A89A1517" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_95A1179BF35AED582FF3A573A89A1517" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_95A1179BF35AED582FF3A573A89A1517" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_0C8E282DD8FA1A7C35BFA573A89A0436_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_0C8E282DD8FA1A7C35BFA573A89A0436" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">12 Months or Longer</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_0C8E282DD8FA1A7C35BFA573A89A0436_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_0C8E282DD8FA1A7C35BFA573A89A0436" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_0C8E282DD8FA1A7C35BFA573A89A0436" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_0C8E282DD8FA1A7C35BFA573A89A0436" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_0C8E282DD8FA1A7C35BFA573A89A0436" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_402FA35C1CC8003CDCEEA573A89A611F_negatedTotalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_402FA35C1CC8003CDCEEA573A89A611F" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_402FA35C1CC8003CDCEEA573A89A611F_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_402FA35C1CC8003CDCEEA573A89A611F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_402FA35C1CC8003CDCEEA573A89A611F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_402FA35C1CC8003CDCEEA573A89A611F" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_402FA35C1CC8003CDCEEA573A89A611F" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAbstract_563FE1B152D7E05827B6A573A89ABBA4_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAbstract_563FE1B152D7E05827B6A573A89ABBA4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held-to-maturity</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAbstract_563FE1B152D7E05827B6A573A89ABBA4_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAbstract_563FE1B152D7E05827B6A573A89ABBA4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAbstract" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAbstract_563FE1B152D7E05827B6A573A89ABBA4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAbstract_563FE1B152D7E05827B6A573A89ABBA4" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAbstract_563FE1B152D7E05827B6A573A89ABBA4" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract_94CB04CCBD9B71AC346FA573A89AEBAB_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract_94CB04CCBD9B71AC346FA573A89AEBAB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held-to-maturity, Fair Value</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract_94CB04CCBD9B71AC346FA573A89AEBAB_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract_94CB04CCBD9B71AC346FA573A89AEBAB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract_94CB04CCBD9B71AC346FA573A89AEBAB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract_94CB04CCBD9B71AC346FA573A89AEBAB" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValueAbstract_94CB04CCBD9B71AC346FA573A89AEBAB" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_0AFAC82D26429E8718A6A573A89A38E7_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_0AFAC82D26429E8718A6A573A89A38E7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Less than 12 Months</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_0AFAC82D26429E8718A6A573A89A38E7_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_0AFAC82D26429E8718A6A573A89A38E7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_0AFAC82D26429E8718A6A573A89A38E7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_0AFAC82D26429E8718A6A573A89A38E7" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_0AFAC82D26429E8718A6A573A89A38E7" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_F1BCD0871BAC9B803A68A573A89A1AB2_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_F1BCD0871BAC9B803A68A573A89A1AB2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">12 Months or More</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_F1BCD0871BAC9B803A68A573A89A1AB2_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_F1BCD0871BAC9B803A68A573A89A1AB2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_F1BCD0871BAC9B803A68A573A89A1AB2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_F1BCD0871BAC9B803A68A573A89A1AB2" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_F1BCD0871BAC9B803A68A573A89A1AB2" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue_B78C14EE3203C9C4D316A573A89AB8C8_totalLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue_B78C14EE3203C9C4D316A573A89AB8C8" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue_B78C14EE3203C9C4D316A573A89AB8C8_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue_B78C14EE3203C9C4D316A573A89AB8C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue_B78C14EE3203C9C4D316A573A89AB8C8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue_B78C14EE3203C9C4D316A573A89AB8C8" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue_B78C14EE3203C9C4D316A573A89AB8C8" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_CCD45759C75889364BBBA573A89AD923_terseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_CCD45759C75889364BBBA573A89AD923" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Held-to-maturity, Unrealized Loss</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_CCD45759C75889364BBBA573A89AD923_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_CCD45759C75889364BBBA573A89AD923" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_CCD45759C75889364BBBA573A89AD923" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_CCD45759C75889364BBBA573A89AD923" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract_CCD45759C75889364BBBA573A89AD923" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_7CD82D7AAA816221D692A573A89AFC78_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_7CD82D7AAA816221D692A573A89AFC78" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Less than 12 Months</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_7CD82D7AAA816221D692A573A89AFC78_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_7CD82D7AAA816221D692A573A89AFC78" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_7CD82D7AAA816221D692A573A89AFC78" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_7CD82D7AAA816221D692A573A89AFC78" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss_7CD82D7AAA816221D692A573A89AFC78" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_B0345F5266CC3E603D95A573A89A5B91_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_B0345F5266CC3E603D95A573A89A5B91" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">12 Months or More</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_B0345F5266CC3E603D95A573A89A5B91_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_B0345F5266CC3E603D95A573A89A5B91" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_B0345F5266CC3E603D95A573A89A5B91" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_B0345F5266CC3E603D95A573A89A5B91" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss_B0345F5266CC3E603D95A573A89A5B91" xlink:type="arc" />
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_D4790387B3532A6B0A0CA573A89A3FB9_negatedTotalLabel_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_D4790387B3532A6B0A0CA573A89A3FB9" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_D4790387B3532A6B0A0CA573A89A3FB9_label_en-US" xlink:label="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_D4790387B3532A6B0A0CA573A89A3FB9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss" xlink:label="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_D4790387B3532A6B0A0CA573A89A3FB9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_D4790387B3532A6B0A0CA573A89A3FB9" xlink:to="lab_us-gaap_HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss_D4790387B3532A6B0A0CA573A89A3FB9" xlink:type="arc" />
    <link:label id="lab_us-gaap_FinancingReceivablesTextBlock_BD434F62AC42730EA6217598772269A6_verboseLabel_en-US" xlink:label="lab_us-gaap_FinancingReceivablesTextBlock_D0B027DD065C5B83B5DEB78CFFF8F489" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Loans Receivable, Net</link:label>
    <link:label id="lab_us-gaap_FinancingReceivablesTextBlock_BD434F62AC42730EA6217598772269A6_label_en-US" xlink:label="lab_us-gaap_FinancingReceivablesTextBlock_D0B027DD065C5B83B5DEB78CFFF8F489" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Financing Receivables [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FinancingReceivablesTextBlock" xlink:label="loc_us-gaap_FinancingReceivablesTextBlock_D0B027DD065C5B83B5DEB78CFFF8F489" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancingReceivablesTextBlock_D0B027DD065C5B83B5DEB78CFFF8F489" xlink:to="lab_us-gaap_FinancingReceivablesTextBlock_D0B027DD065C5B83B5DEB78CFFF8F489" xlink:type="arc" />
    <link:label id="lab_gbci_TermsOfSubordinatedDebenturesTableTextBlock_9960A7D1021184158EF8759878FADE5F_verboseLabel_en-US" xlink:label="lab_gbci_TermsOfSubordinatedDebenturesTableTextBlock_EE56AA31FD385EB88F11EB1EA6916F0D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summary of Subordinated Debentures</link:label>
    <link:label id="lab_gbci_TermsOfSubordinatedDebenturesTableTextBlock_9960A7D1021184158EF8759878FADE5F_label_en-US" xlink:label="lab_gbci_TermsOfSubordinatedDebenturesTableTextBlock_EE56AA31FD385EB88F11EB1EA6916F0D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Terms of Subordinated Debentures [Table Text Block]</link:label>
    <link:label id="lab_gbci_TermsOfSubordinatedDebenturesTableTextBlock_9960A7D1021184158EF8759878FADE5F_documentation_en-US" xlink:label="lab_gbci_TermsOfSubordinatedDebenturesTableTextBlock_EE56AA31FD385EB88F11EB1EA6916F0D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Terms of subordinated debentures.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TermsOfSubordinatedDebenturesTableTextBlock" xlink:label="loc_gbci_TermsOfSubordinatedDebenturesTableTextBlock_EE56AA31FD385EB88F11EB1EA6916F0D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TermsOfSubordinatedDebenturesTableTextBlock_EE56AA31FD385EB88F11EB1EA6916F0D" xlink:to="lab_gbci_TermsOfSubordinatedDebenturesTableTextBlock_EE56AA31FD385EB88F11EB1EA6916F0D" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtDisclosureTextBlock_28E68376272E5EE8B5EF759878E4B159_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock_31948697F98C53F4A4CDE226AFF13DEC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Borrowings</link:label>
    <link:label id="lab_us-gaap_DebtDisclosureTextBlock_28E68376272E5EE8B5EF759878E4B159_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock_31948697F98C53F4A4CDE226AFF13DEC" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="loc_us-gaap_DebtDisclosureTextBlock_31948697F98C53F4A4CDE226AFF13DEC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureTextBlock_31948697F98C53F4A4CDE226AFF13DEC" xlink:to="lab_us-gaap_DebtDisclosureTextBlock_31948697F98C53F4A4CDE226AFF13DEC" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentTable_41A8832A3E9221169B9DA4BB446F13A3_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_41A8832A3E9221169B9DA4BB446F13A3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentTable_41A8832A3E9221169B9DA4BB446F13A3_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable_41A8832A3E9221169B9DA4BB446F13A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_41A8832A3E9221169B9DA4BB446F13A3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable_41A8832A3E9221169B9DA4BB446F13A3" xlink:to="lab_us-gaap_DebtInstrumentTable_41A8832A3E9221169B9DA4BB446F13A3" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentAxis_2BD24D5AC3D22E7AB482A4BB446F7BF6_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis_2BD24D5AC3D22E7AB482A4BB446F7BF6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentAxis_2BD24D5AC3D22E7AB482A4BB446F7BF6_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis_2BD24D5AC3D22E7AB482A4BB446F7BF6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_2BD24D5AC3D22E7AB482A4BB446F7BF6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentAxis_2BD24D5AC3D22E7AB482A4BB446F7BF6" xlink:to="lab_us-gaap_DebtInstrumentAxis_2BD24D5AC3D22E7AB482A4BB446F7BF6" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentNameDomain_CDE2C30ADA3CCD964A2DA4BB447E677A_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_CDE2C30ADA3CCD964A2DA4BB447E677A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentNameDomain_CDE2C30ADA3CCD964A2DA4BB447E677A_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain_CDE2C30ADA3CCD964A2DA4BB447E677A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_CDE2C30ADA3CCD964A2DA4BB447E677A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_CDE2C30ADA3CCD964A2DA4BB447E677A" xlink:to="lab_us-gaap_DebtInstrumentNameDomain_CDE2C30ADA3CCD964A2DA4BB447E677A" xlink:type="arc" />
    <link:label id="lab_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF_verboseLabel_en-US" xlink:label="lab_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">First Company Statutory Trust 2001</link:label>
    <link:label id="lab_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF_label_en-US" xlink:label="lab_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">First Company Statutory Trust 2001 [Member]</link:label>
    <link:label id="lab_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF_documentation_en-US" xlink:label="lab_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">First Company Statutory Trust 2001</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FirstCompanyStatutoryTrust2001Member" xlink:label="loc_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF" xlink:to="lab_gbci_FirstCompanyStatutoryTrust2001Member_36EF772ADFB885E1AB6CA4BB447EFBEF" xlink:type="arc" />
    <link:label id="lab_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D_verboseLabel_en-US" xlink:label="lab_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">First Company Statutory Trust 2003</link:label>
    <link:label id="lab_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D_label_en-US" xlink:label="lab_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">First Company Statutory Trust 2003 [Member]</link:label>
    <link:label id="lab_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D_documentation_en-US" xlink:label="lab_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">First Company Statutory Trust 2003</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FirstCompanyStatutoryTrust2003Member" xlink:label="loc_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D" xlink:to="lab_gbci_FirstCompanyStatutoryTrust2003Member_AFFD30318836611D5B60A4BB447ED03D" xlink:type="arc" />
    <link:label id="lab_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757_verboseLabel_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust II</link:label>
    <link:label id="lab_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757_label_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust II [Member]</link:label>
    <link:label id="lab_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757_documentation_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust II</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_GlacierCapitalTrustIiMember" xlink:label="loc_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757" xlink:to="lab_gbci_GlacierCapitalTrustIiMember_CEEC7522EAC7F701345EA4BB447E8757" xlink:type="arc" />
    <link:label id="lab_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486_verboseLabel_en-US" xlink:label="lab_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Citizens (ID) Statutory Trust I</link:label>
    <link:label id="lab_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486_label_en-US" xlink:label="lab_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Citizens (ID) Statutory Trust I [Member]</link:label>
    <link:label id="lab_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486_documentation_en-US" xlink:label="lab_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Citizens (ID) Statutory Trust I</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_CitizensIdStatutoryTrustIMember" xlink:label="loc_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486" xlink:to="lab_gbci_CitizensIdStatutoryTrustIMember_461BAD0CC09BC5C8CDA5A4BB447EF486" xlink:type="arc" />
    <link:label id="lab_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12_verboseLabel_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust III</link:label>
    <link:label id="lab_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12_label_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust III [Member]</link:label>
    <link:label id="lab_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12_documentation_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust III</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_GlacierCapitalTrustIiiMember" xlink:label="loc_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12" xlink:to="lab_gbci_GlacierCapitalTrustIiiMember_9919CDE59726E81DBD5FA4BB447E0A12" xlink:type="arc" />
    <link:label id="lab_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423_verboseLabel_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust IV</link:label>
    <link:label id="lab_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423_label_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust IV [Member]</link:label>
    <link:label id="lab_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423_documentation_en-US" xlink:label="lab_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Glacier Capital Trust IV</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_GlacierCapitalTrustIvMember" xlink:label="loc_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423" xlink:to="lab_gbci_GlacierCapitalTrustIvMember_C48B78C1DEDF49A2E219A4BB447E1423" xlink:type="arc" />
    <link:label id="lab_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B_verboseLabel_en-US" xlink:label="lab_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Bank of the San Juans Bancorporation Trust I</link:label>
    <link:label id="lab_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B_label_en-US" xlink:label="lab_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Bank of the San Juans Bancorporation Trust I [Member]</link:label>
    <link:label id="lab_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B_documentation_en-US" xlink:label="lab_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Bank of the San Juans Bancorporation Trust I</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_BankOfSanJuansBancorporationTrustIMember" xlink:label="loc_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B" xlink:to="lab_gbci_BankOfSanJuansBancorporationTrustIMember_00F91F34A084A6FE2DF3A4BB447E171B" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_6128050437E1EF95AD2BA4BB447EB373_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_6128050437E1EF95AD2BA4BB447EB373" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentLineItems_6128050437E1EF95AD2BA4BB447EB373_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentLineItems_6128050437E1EF95AD2BA4BB447EB373" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_6128050437E1EF95AD2BA4BB447EB373" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentLineItems_6128050437E1EF95AD2BA4BB447EB373" xlink:to="lab_us-gaap_DebtInstrumentLineItems_6128050437E1EF95AD2BA4BB447EB373" xlink:type="arc" />
    <link:label id="lab_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F_verboseLabel_en-US" xlink:label="lab_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Terms of Subordinated Debentures</link:label>
    <link:label id="lab_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F_label_en-US" xlink:label="lab_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Terms of Subordinated Debentures Abstract</link:label>
    <link:label id="lab_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F_documentation_en-US" xlink:label="lab_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Terms of subordinated debentures.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TermsOfSubordinatedDebenturesAbstract" xlink:label="loc_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F" xlink:to="lab_gbci_TermsOfSubordinatedDebenturesAbstract_D95AF05E589D47132D2FA4BB447E871F" xlink:type="arc" />
    <link:label id="lab_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_DB29B7ED33D846F8BAF7A4BB447E4782_terseLabel_en-US" xlink:label="lab_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_DB29B7ED33D846F8BAF7A4BB447E4782" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Balance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust" xlink:label="loc_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_DB29B7ED33D846F8BAF7A4BB447E4782" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_DB29B7ED33D846F8BAF7A4BB447E4782" xlink:to="lab_us-gaap_JuniorSubordinatedDebentureOwedToUnconsolidatedSubsidiaryTrust_DB29B7ED33D846F8BAF7A4BB447E4782" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage_463DBE26961EB3DC1399A4BB447E7B8B_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage_463DBE26961EB3DC1399A4BB447E7B8B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Rate at December 31, 2017</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage_463DBE26961EB3DC1399A4BB447E7B8B_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage_463DBE26961EB3DC1399A4BB447E7B8B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Interest Rate, Effective Percentage</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_463DBE26961EB3DC1399A4BB447E7B8B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_463DBE26961EB3DC1399A4BB447E7B8B" xlink:to="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage_463DBE26961EB3DC1399A4BB447E7B8B" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_92F6C149813BFEF2424DA4BB447E60EA_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_92F6C149813BFEF2424DA4BB447E60EA" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Variable Rate Structure</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_92F6C149813BFEF2424DA4BB447E60EA_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_92F6C149813BFEF2424DA4BB447E60EA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Description of Variable Rate Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentDescriptionOfVariableRateBasis" xlink:label="loc_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_92F6C149813BFEF2424DA4BB447E60EA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_92F6C149813BFEF2424DA4BB447E60EA" xlink:to="lab_us-gaap_DebtInstrumentDescriptionOfVariableRateBasis_92F6C149813BFEF2424DA4BB447E60EA" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_688AD4CB96ED77C52C09A4BB447EED85_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_688AD4CB96ED77C52C09A4BB447EED85" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">LIBOR Rate Spread</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_688AD4CB96ED77C52C09A4BB447EED85_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_688AD4CB96ED77C52C09A4BB447EED85" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Basis Spread on Variable Rate</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_688AD4CB96ED77C52C09A4BB447EED85" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_688AD4CB96ED77C52C09A4BB447EED85" xlink:to="lab_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_688AD4CB96ED77C52C09A4BB447EED85" xlink:type="arc" />
    <link:label id="lab_us-gaap_DebtInstrumentMaturityDate_611E4A58061947C07269A4BB447E456E_verboseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentMaturityDate_611E4A58061947C07269A4BB447E456E" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Maturity Date</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentMaturityDate_611E4A58061947C07269A4BB447E456E_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentMaturityDate_611E4A58061947C07269A4BB447E456E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Maturity Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="loc_us-gaap_DebtInstrumentMaturityDate_611E4A58061947C07269A4BB447E456E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentMaturityDate_611E4A58061947C07269A4BB447E456E" xlink:to="lab_us-gaap_DebtInstrumentMaturityDate_611E4A58061947C07269A4BB447E456E" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherIncomeAndExpensesAbstract_5F3F5A6A7C7FE4ABCAD3A4BB4401F107_terseLabel_en-US" xlink:label="lab_us-gaap_OtherIncomeAndExpensesAbstract_5F3F5A6A7C7FE4ABCAD3A4BB4401F107" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Expenses</link:label>
    <link:label id="lab_us-gaap_OtherIncomeAndExpensesAbstract_5F3F5A6A7C7FE4ABCAD3A4BB4401F107_label_en-US" xlink:label="lab_us-gaap_OtherIncomeAndExpensesAbstract_5F3F5A6A7C7FE4ABCAD3A4BB4401F107" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Income and Expenses [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract" xlink:label="loc_us-gaap_OtherIncomeAndExpensesAbstract_5F3F5A6A7C7FE4ABCAD3A4BB4401F107" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_5F3F5A6A7C7FE4ABCAD3A4BB4401F107" xlink:to="lab_us-gaap_OtherIncomeAndExpensesAbstract_5F3F5A6A7C7FE4ABCAD3A4BB4401F107" xlink:type="arc" />
    <link:label id="lab_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5_terseLabel_en-US" xlink:label="lab_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debit card expenses</link:label>
    <link:label id="lab_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5_label_en-US" xlink:label="lab_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debit Card Expense</link:label>
    <link:label id="lab_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5_documentation_en-US" xlink:label="lab_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Debit card expense.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DebitCardExpense" xlink:label="loc_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5" xlink:to="lab_gbci_DebitCardExpense_55944E5FA975AE0BE16EA4BB4401FAE5" xlink:type="arc" />
    <link:label id="lab_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D_terseLabel_en-US" xlink:label="lab_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Consulting and outside services</link:label>
    <link:label id="lab_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D_label_en-US" xlink:label="lab_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consulting Fees</link:label>
    <link:label id="lab_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D_documentation_en-US" xlink:label="lab_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consulting fees other than legal and accounting fees.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ConsultingFees" xlink:label="loc_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D" xlink:to="lab_gbci_ConsultingFees_9FFC05C54AFE2A7CEF8FA4BB4401FD3D" xlink:type="arc" />
    <link:label id="lab_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D_terseLabel_en-US" xlink:label="lab_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee expenses</link:label>
    <link:label id="lab_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D_label_en-US" xlink:label="lab_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Miscellaneous Employee Expenses</link:label>
    <link:label id="lab_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D_documentation_en-US" xlink:label="lab_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Miscellaneous employee expenses other than compensation and benefits.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_MiscellaneousEmployeeExpenses" xlink:label="loc_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D" xlink:to="lab_gbci_MiscellaneousEmployeeExpenses_E093DEF6A3A5BDCC310CA4BB4401C63D" xlink:type="arc" />
    <link:label id="lab_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23_terseLabel_en-US" xlink:label="lab_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Telephone</link:label>
    <link:label id="lab_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23_label_en-US" xlink:label="lab_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Telephone Expenses</link:label>
    <link:label id="lab_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23_documentation_en-US" xlink:label="lab_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Telephone expenses</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_TelephoneExpenses" xlink:label="loc_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23" xlink:to="lab_gbci_TelephoneExpenses_4FBB4D9E3FBDD0AB6E5FA4BB44013D23" xlink:type="arc" />
    <link:label id="lab_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D_terseLabel_en-US" xlink:label="lab_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">VIE amortization and other expenses</link:label>
    <link:label id="lab_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D_label_en-US" xlink:label="lab_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">VIE Write-downs, Losses and Other Expenses</link:label>
    <link:label id="lab_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D_documentation_en-US" xlink:label="lab_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Write-downs, Losses and Other Expenses related to Variable Interest Entities.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_VIEWritedownsLossesandOtherExpenses" xlink:label="loc_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D" xlink:to="lab_gbci_VIEWritedownsLossesandOtherExpenses_386C105283CC37BEFD47A4BB4401133D" xlink:type="arc" />
    <link:label id="lab_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075_terseLabel_en-US" xlink:label="lab_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loan expenses</link:label>
    <link:label id="lab_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075_label_en-US" xlink:label="lab_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loan-Related Expenses</link:label>
    <link:label id="lab_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075_documentation_en-US" xlink:label="lab_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Loan-related expenses.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_LoanRelatedExpenses" xlink:label="loc_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075" xlink:to="lab_gbci_LoanRelatedExpenses_BD47D52280E20D58C928A4BB44019075" xlink:type="arc" />
    <link:label id="lab_us-gaap_PostageExpense_DF4DA2159EC5A030F43AA4BB4401CA5C_terseLabel_en-US" xlink:label="lab_us-gaap_PostageExpense_DF4DA2159EC5A030F43AA4BB4401CA5C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Postage</link:label>
    <link:label id="lab_us-gaap_PostageExpense_DF4DA2159EC5A030F43AA4BB4401CA5C_label_en-US" xlink:label="lab_us-gaap_PostageExpense_DF4DA2159EC5A030F43AA4BB4401CA5C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Postage Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PostageExpense" xlink:label="loc_us-gaap_PostageExpense_DF4DA2159EC5A030F43AA4BB4401CA5C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PostageExpense_DF4DA2159EC5A030F43AA4BB4401CA5C" xlink:to="lab_us-gaap_PostageExpense_DF4DA2159EC5A030F43AA4BB4401CA5C" xlink:type="arc" />
    <link:label id="lab_us-gaap_SuppliesExpense_80959D1090D3B21E7A1DA4BB4401E461_terseLabel_en-US" xlink:label="lab_us-gaap_SuppliesExpense_80959D1090D3B21E7A1DA4BB4401E461" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Printing and supplies</link:label>
    <link:label id="lab_us-gaap_SuppliesExpense_80959D1090D3B21E7A1DA4BB4401E461_label_en-US" xlink:label="lab_us-gaap_SuppliesExpense_80959D1090D3B21E7A1DA4BB4401E461" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Supplies Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SuppliesExpense" xlink:label="loc_us-gaap_SuppliesExpense_80959D1090D3B21E7A1DA4BB4401E461" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SuppliesExpense_80959D1090D3B21E7A1DA4BB4401E461" xlink:to="lab_us-gaap_SuppliesExpense_80959D1090D3B21E7A1DA4BB4401E461" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessCombinationIntegrationRelatedCosts_D849D725C3E026C4D2ABA51BF4EC75C8_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationIntegrationRelatedCosts_D849D725C3E026C4D2ABA51BF4EC75C8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mergers and acquisition expenses</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationIntegrationRelatedCosts_D849D725C3E026C4D2ABA51BF4EC75C8_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationIntegrationRelatedCosts_D849D725C3E026C4D2ABA51BF4EC75C8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Combination, Integration Related Costs</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationIntegrationRelatedCosts" xlink:label="loc_us-gaap_BusinessCombinationIntegrationRelatedCosts_D849D725C3E026C4D2ABA51BF4EC75C8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationIntegrationRelatedCosts_D849D725C3E026C4D2ABA51BF4EC75C8" xlink:to="lab_us-gaap_BusinessCombinationIntegrationRelatedCosts_D849D725C3E026C4D2ABA51BF4EC75C8" xlink:type="arc" />
    <link:label id="lab_us-gaap_BusinessDevelopment_339C50623AC6C551C279A4BB4401C9DA_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessDevelopment_339C50623AC6C551C279A4BB4401C9DA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business development</link:label>
    <link:label id="lab_us-gaap_BusinessDevelopment_339C50623AC6C551C279A4BB4401C9DA_label_en-US" xlink:label="lab_us-gaap_BusinessDevelopment_339C50623AC6C551C279A4BB4401C9DA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Business Development</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessDevelopment" xlink:label="loc_us-gaap_BusinessDevelopment_339C50623AC6C551C279A4BB4401C9DA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessDevelopment_339C50623AC6C551C279A4BB4401C9DA" xlink:to="lab_us-gaap_BusinessDevelopment_339C50623AC6C551C279A4BB4401C9DA" xlink:type="arc" />
    <link:label id="lab_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8_terseLabel_en-US" xlink:label="lab_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting and audit fees</link:label>
    <link:label id="lab_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8_label_en-US" xlink:label="lab_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Fees</link:label>
    <link:label id="lab_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8_documentation_en-US" xlink:label="lab_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Accounting Fees</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_AccountingFees" xlink:label="loc_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8" xlink:to="lab_gbci_AccountingFees_F6C71198E4AEE1F6172BA4BB440194F8" xlink:type="arc" />
    <link:label id="lab_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31_terseLabel_en-US" xlink:label="lab_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Checking and operating expenses</link:label>
    <link:label id="lab_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31_label_en-US" xlink:label="lab_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deposit-Related Expenses</link:label>
    <link:label id="lab_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31_documentation_en-US" xlink:label="lab_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Deposit related expenses other than interest expense.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_DepositRelatedExpenses" xlink:label="loc_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31" xlink:to="lab_gbci_DepositRelatedExpenses_53901E3DDA21575FDFFDA4BB4401EC31" xlink:type="arc" />
    <link:label id="lab_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536_terseLabel_en-US" xlink:label="lab_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ATM expenses</link:label>
    <link:label id="lab_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536_label_en-US" xlink:label="lab_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ATM Expenses</link:label>
    <link:label id="lab_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536_documentation_en-US" xlink:label="lab_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ATM Expenses</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ATMExpenses" xlink:label="loc_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536" xlink:to="lab_gbci_ATMExpenses_FEE726AE7DCD2E16FCD4A4BB44011536" xlink:type="arc" />
    <link:label id="lab_us-gaap_LegalFees_33EB1007F66523C80622A4BB44015222_terseLabel_en-US" xlink:label="lab_us-gaap_LegalFees_33EB1007F66523C80622A4BB44015222" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Legal fees</link:label>
    <link:label id="lab_us-gaap_LegalFees_33EB1007F66523C80622A4BB44015222_label_en-US" xlink:label="lab_us-gaap_LegalFees_33EB1007F66523C80622A4BB44015222" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Fees</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LegalFees" xlink:label="loc_us-gaap_LegalFees_33EB1007F66523C80622A4BB44015222" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LegalFees_33EB1007F66523C80622A4BB44015222" xlink:to="lab_us-gaap_LegalFees_33EB1007F66523C80622A4BB44015222" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherCostAndExpenseOperating_A7CB2F05E62ACD04C01AA4BB44015592_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCostAndExpenseOperating_A7CB2F05E62ACD04C01AA4BB44015592" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:label id="lab_us-gaap_OtherCostAndExpenseOperating_A7CB2F05E62ACD04C01AA4BB44015592_label_en-US" xlink:label="lab_us-gaap_OtherCostAndExpenseOperating_A7CB2F05E62ACD04C01AA4BB44015592" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Cost and Expense, Operating</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherCostAndExpenseOperating" xlink:label="loc_us-gaap_OtherCostAndExpenseOperating_A7CB2F05E62ACD04C01AA4BB44015592" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCostAndExpenseOperating_A7CB2F05E62ACD04C01AA4BB44015592" xlink:to="lab_us-gaap_OtherCostAndExpenseOperating_A7CB2F05E62ACD04C01AA4BB44015592" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherNoninterestExpense_E4376DE7846DE241B350A4BB44010393_totalLabel_en-US" xlink:label="lab_us-gaap_OtherNoninterestExpense_E4376DE7846DE241B350A4BB44010393" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total other expenses</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="loc_us-gaap_OtherNoninterestExpense_E4376DE7846DE241B350A4BB44010393" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNoninterestExpense_E4376DE7846DE241B350A4BB44010393" xlink:to="lab_us-gaap_OtherNoninterestExpense_E4376DE7846DE241B350A4BB44010393" xlink:type="arc" />
    <link:label id="lab_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements_FBC65429C26A3B3B9371A4BB447ED90E_terseLabel_en-US" xlink:label="lab_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements_FBC65429C26A3B3B9371A4BB447ED90E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Securities Pledged for Repurchase Agreements</link:label>
    <link:label id="lab_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements_FBC65429C26A3B3B9371A4BB447ED90E_label_en-US" xlink:label="lab_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements_FBC65429C26A3B3B9371A4BB447ED90E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pledged Financial Instruments, Not Separately Reported, Securities for Repurchase Agreements</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements" xlink:label="loc_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements_FBC65429C26A3B3B9371A4BB447ED90E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements_FBC65429C26A3B3B9371A4BB447ED90E" xlink:to="lab_us-gaap_PledgedFinancialInstrumentsNotSeparatelyReportedSecuritiesForRepurchaseAgreements_FBC65429C26A3B3B9371A4BB447ED90E" xlink:type="arc" />
    <link:label id="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_7C10EF484D96E4D0D5CEA4BB447E5526_verboseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_7C10EF484D96E4D0D5CEA4BB447E5526" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Lines of credit</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_7C10EF484D96E4D0D5CEA4BB447E5526_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_7C10EF484D96E4D0D5CEA4BB447E5526" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_7C10EF484D96E4D0D5CEA4BB447E5526" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_7C10EF484D96E4D0D5CEA4BB447E5526" xlink:to="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_7C10EF484D96E4D0D5CEA4BB447E5526" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_AF5C07D7BF642F43D6A17598791441D2_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_901C289861E2548AADF5174275BD778E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) [Table]</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_AF5C07D7BF642F43D6A17598791441D2_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_901C289861E2548AADF5174275BD778E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_901C289861E2548AADF5174275BD778E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_901C289861E2548AADF5174275BD778E" xlink:to="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_901C289861E2548AADF5174275BD778E" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLocationAxis_EC1FD3F6002CC4325140759879152B44_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLocationAxis_CDBEE4DDE5385B9EB4387D95680C5C35" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income Location [Axis]</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLocationAxis_EC1FD3F6002CC4325140759879152B44_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLocationAxis_CDBEE4DDE5385B9EB4387D95680C5C35" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income Location [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLocationAxis" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLocationAxis_CDBEE4DDE5385B9EB4387D95680C5C35" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLocationAxis_CDBEE4DDE5385B9EB4387D95680C5C35" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLocationAxis_CDBEE4DDE5385B9EB4387D95680C5C35" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLocationDomain_F03656C7744FD173259F75987915F3DA_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLocationDomain_9985AD11BA885ACCBF041CFC5DC17FED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income Location [Domain]</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLocationDomain_F03656C7744FD173259F75987915F3DA_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLocationDomain_9985AD11BA885ACCBF041CFC5DC17FED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income Location [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeLocationDomain" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLocationDomain_9985AD11BA885ACCBF041CFC5DC17FED" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLocationDomain_9985AD11BA885ACCBF041CFC5DC17FED" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLocationDomain_9985AD11BA885ACCBF041CFC5DC17FED" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeMember_6506C870F3F7759ECA517598791592CD_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeMember_53635C6D83BB50D08F38D12067FFF572" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeMember_6506C870F3F7759ECA517598791592CD_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeMember_53635C6D83BB50D08F38D12067FFF572" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Comprehensive Income (Loss) [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_OtherComprehensiveIncomeMember_53635C6D83BB50D08F38D12067FFF572" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeMember_53635C6D83BB50D08F38D12067FFF572" xlink:to="lab_us-gaap_OtherComprehensiveIncomeMember_53635C6D83BB50D08F38D12067FFF572" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeStatementLocationAxis_0C694A5ACE631D2E29FF759879156389_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis_7276C55075F05F1E97005C0936D1D3C2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Statement Location [Axis]</link:label>
    <link:label id="lab_us-gaap_IncomeStatementLocationAxis_0C694A5ACE631D2E29FF759879156389_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis_7276C55075F05F1E97005C0936D1D3C2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement Location [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_7276C55075F05F1E97005C0936D1D3C2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_7276C55075F05F1E97005C0936D1D3C2" xlink:to="lab_us-gaap_IncomeStatementLocationAxis_7276C55075F05F1E97005C0936D1D3C2" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeStatementLocationDomain_52F102F5242DF9A21FAA759879159BA9_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain_611759651CE051669FB423014F7BDA3A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Statement Location [Domain]</link:label>
    <link:label id="lab_us-gaap_IncomeStatementLocationDomain_52F102F5242DF9A21FAA759879159BA9_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain_611759651CE051669FB423014F7BDA3A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement Location [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_611759651CE051669FB423014F7BDA3A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_611759651CE051669FB423014F7BDA3A" xlink:to="lab_us-gaap_IncomeStatementLocationDomain_611759651CE051669FB423014F7BDA3A" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpenseMember_CB1E8D37C79F56A9F7D475987915A704_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpenseMember_A132CA3AD94D5B0490BFC685B6B0EC06" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Expense</link:label>
    <link:label id="lab_us-gaap_InterestExpenseMember_CB1E8D37C79F56A9F7D475987915A704_label_en-US" xlink:label="lab_us-gaap_InterestExpenseMember_A132CA3AD94D5B0490BFC685B6B0EC06" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpenseMember" xlink:label="loc_us-gaap_InterestExpenseMember_A132CA3AD94D5B0490BFC685B6B0EC06" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpenseMember_A132CA3AD94D5B0490BFC685B6B0EC06" xlink:to="lab_us-gaap_InterestExpenseMember_A132CA3AD94D5B0490BFC685B6B0EC06" xlink:type="arc" />
    <link:label id="lab_us-gaap_OtherExpenseMember_0244111FEDA673617D0375987915CE9C_terseLabel_en-US" xlink:label="lab_us-gaap_OtherExpenseMember_29D49C5B3DF95823AA94C4C2910A6F32" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other Non-Interest Expense</link:label>
    <link:label id="lab_us-gaap_OtherExpenseMember_0244111FEDA673617D0375987915CE9C_label_en-US" xlink:label="lab_us-gaap_OtherExpenseMember_29D49C5B3DF95823AA94C4C2910A6F32" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Expense [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherExpenseMember" xlink:label="loc_us-gaap_OtherExpenseMember_29D49C5B3DF95823AA94C4C2910A6F32" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherExpenseMember_29D49C5B3DF95823AA94C4C2910A6F32" xlink:to="lab_us-gaap_OtherExpenseMember_29D49C5B3DF95823AA94C4C2910A6F32" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_F4334657B3EF7638EF36759879156E69_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_706629760A695782B200DB8AA50E63AF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pre-Tax Gains or Losses</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_F4334657B3EF7638EF36759879156E69_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_706629760A695782B200DB8AA50E63AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_706629760A695782B200DB8AA50E63AF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_706629760A695782B200DB8AA50E63AF" xlink:to="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_706629760A695782B200DB8AA50E63AF" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet_95875F433438F59A39E575987916FBE2_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet_187736C468A95CC2BB69D6B1EF518429" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount of gain (loss) recognized in OCI (effective portion)</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet_95875F433438F59A39E575987916FBE2_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet_187736C468A95CC2BB69D6B1EF518429" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet_187736C468A95CC2BB69D6B1EF518429" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet_187736C468A95CC2BB69D6B1EF518429" xlink:to="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet_187736C468A95CC2BB69D6B1EF518429" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_16919EDD881609DF07C575987916F57F_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_6CA3A2140EC25BB18A7B8837F98FF39E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount of loss reclassified from OCI to interest expense</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_16919EDD881609DF07C575987916F57F_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_6CA3A2140EC25BB18A7B8837F98FF39E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_6CA3A2140EC25BB18A7B8837F98FF39E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_6CA3A2140EC25BB18A7B8837F98FF39E" xlink:to="lab_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_6CA3A2140EC25BB18A7B8837F98FF39E" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet_A7598CE8D0E056FD504E759879165A91_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet_3075E3F4A1C355CD82E52DAAB22F3FF5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Amount of loss recognized in other non-interest expense (ineffective portion)</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet_A7598CE8D0E056FD504E759879165A91_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet_3075E3F4A1C355CD82E52DAAB22F3FF5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet_3075E3F4A1C355CD82E52DAAB22F3FF5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet_3075E3F4A1C355CD82E52DAAB22F3FF5" xlink:to="lab_us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet_3075E3F4A1C355CD82E52DAAB22F3FF5" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingAbstract_E1C4B7D4074BF5E2BA317598777EAEEB_label_en-US" xlink:label="lab_us-gaap_OffsettingAbstract_FACEC7899E345ACDB12D087242CFFE07" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OffsettingAbstract" xlink:label="loc_us-gaap_OffsettingAbstract_FACEC7899E345ACDB12D087242CFFE07" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingAbstract_FACEC7899E345ACDB12D087242CFFE07" xlink:to="lab_us-gaap_OffsettingAbstract_FACEC7899E345ACDB12D087242CFFE07" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingLiabilitiesTable_3CFF1DCDF4CC65A1605A7598777EC5F9_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingLiabilitiesTable_7B210C8062F759DD937534E0B77483AD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Offsetting Liabilities [Table]</link:label>
    <link:label id="lab_us-gaap_OffsettingLiabilitiesTable_3CFF1DCDF4CC65A1605A7598777EC5F9_label_en-US" xlink:label="lab_us-gaap_OffsettingLiabilitiesTable_7B210C8062F759DD937534E0B77483AD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Liabilities [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OffsettingLiabilitiesTable" xlink:label="loc_us-gaap_OffsettingLiabilitiesTable_7B210C8062F759DD937534E0B77483AD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingLiabilitiesTable_7B210C8062F759DD937534E0B77483AD" xlink:to="lab_us-gaap_OffsettingLiabilitiesTable_7B210C8062F759DD937534E0B77483AD" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingLiabilitiesLineItems_50E87F34117BB56AF4657598777FEDF8_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingLiabilitiesLineItems_B490358F294E50D987E4F946E977A6D3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Offsetting Liabilities [Line Items]</link:label>
    <link:label id="lab_us-gaap_OffsettingLiabilitiesLineItems_50E87F34117BB56AF4657598777FEDF8_label_en-US" xlink:label="lab_us-gaap_OffsettingLiabilitiesLineItems_B490358F294E50D987E4F946E977A6D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Liabilities [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OffsettingLiabilitiesLineItems" xlink:label="loc_us-gaap_OffsettingLiabilitiesLineItems_B490358F294E50D987E4F946E977A6D3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingLiabilitiesLineItems_B490358F294E50D987E4F946E977A6D3" xlink:to="lab_us-gaap_OffsettingLiabilitiesLineItems_B490358F294E50D987E4F946E977A6D3" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingDerivativeLiabilitiesAbstract_B5AB97B4CE55ABACEDFA7598777F8CF5_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingDerivativeLiabilitiesAbstract_D76C7D12C4F25627978B9B528E51E1CF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Offsetting Derivative Liabilities</link:label>
    <link:label id="lab_us-gaap_OffsettingDerivativeLiabilitiesAbstract_B5AB97B4CE55ABACEDFA7598777F8CF5_label_en-US" xlink:label="lab_us-gaap_OffsettingDerivativeLiabilitiesAbstract_D76C7D12C4F25627978B9B528E51E1CF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Derivative Liabilities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OffsettingDerivativeLiabilitiesAbstract" xlink:label="loc_us-gaap_OffsettingDerivativeLiabilitiesAbstract_D76C7D12C4F25627978B9B528E51E1CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingDerivativeLiabilitiesAbstract_D76C7D12C4F25627978B9B528E51E1CF" xlink:to="lab_us-gaap_OffsettingDerivativeLiabilitiesAbstract_D76C7D12C4F25627978B9B528E51E1CF" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_353C562F379EA14FA84B7598777FCF32_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_4DD7384950E25C97BD588FFFFDB6D1C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross Amounts of Recognized Liabilities</link:label>
    <link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_353C562F379EA14FA84B7598777FCF32_label_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_4DD7384950E25C97BD588FFFFDB6D1C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liability, Fair Value, Gross Liability</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_4DD7384950E25C97BD588FFFFDB6D1C4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_4DD7384950E25C97BD588FFFFDB6D1C4" xlink:to="lab_us-gaap_DerivativeFairValueOfDerivativeLiability_4DD7384950E25C97BD588FFFFDB6D1C4" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeLiabilityFairValueGrossAsset_E29B1B70AE78DC8B7D457598777F19F0_negatedLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilityFairValueGrossAsset_095E659E5F0E5471BBF8C455A7FB19FA" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gross Amounts Offset in the Statements of Financial Position</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilityFairValueGrossAsset_E29B1B70AE78DC8B7D457598777F19F0_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilityFairValueGrossAsset_095E659E5F0E5471BBF8C455A7FB19FA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liability, Fair Value, Gross Asset</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeLiabilityFairValueGrossAsset" xlink:label="loc_us-gaap_DerivativeLiabilityFairValueGrossAsset_095E659E5F0E5471BBF8C455A7FB19FA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLiabilityFairValueGrossAsset_095E659E5F0E5471BBF8C455A7FB19FA" xlink:to="lab_us-gaap_DerivativeLiabilityFairValueGrossAsset_095E659E5F0E5471BBF8C455A7FB19FA" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_F89D83B4722D7DEE413A7598777FC591_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_20E24BFB8FBE56F08D2BBABE3C610C17" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net Amounts of Liabilities Presented in the Statements of Financial Position</link:label>
    <link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_F89D83B4722D7DEE413A7598777FC591_label_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_20E24BFB8FBE56F08D2BBABE3C610C17" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Liability, Fair Value, Amount Not Offset Against Collateral</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_20E24BFB8FBE56F08D2BBABE3C610C17" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_20E24BFB8FBE56F08D2BBABE3C610C17" xlink:to="lab_us-gaap_DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral_20E24BFB8FBE56F08D2BBABE3C610C17" xlink:type="arc" />
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_5F2BF6B3E0AE99ED943D75987787CF7F_verboseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_852A2FA8442557C7A95F4161346BF364" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Premises and equipment, net of accumulated depreciation</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_5F2BF6B3E0AE99ED943D75987787CF7F_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_852A2FA8442557C7A95F4161346BF364" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_852A2FA8442557C7A95F4161346BF364" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTextBlock_852A2FA8442557C7A95F4161346BF364" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentTextBlock_852A2FA8442557C7A95F4161346BF364" xlink:type="arc" />
    <link:label id="lab_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_461F7601C028BD09965A759877879968_terseLabel_en-US" xlink:label="lab_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_9A7EE42FAB54584D9463F86ECE0BAC60" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Future Minimum Rental Commitments required under Operating and Capital Leases</link:label>
    <link:label id="lab_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_461F7601C028BD09965A759877879968_label_en-US" xlink:label="lab_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_9A7EE42FAB54584D9463F86ECE0BAC60" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Future Minimum Rental Payments for Operating and Capital Leases [Table Text Block]</link:label>
    <link:label id="lab_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_461F7601C028BD09965A759877879968_documentation_en-US" xlink:label="lab_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_9A7EE42FAB54584D9463F86ECE0BAC60" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule of future minimum rental payments for operating and capital leases table.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock" xlink:label="loc_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_9A7EE42FAB54584D9463F86ECE0BAC60" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_9A7EE42FAB54584D9463F86ECE0BAC60" xlink:to="lab_gbci_ScheduleOfFutureMinimumRentalPaymentsForOperatingAndCapitalLeasesTableTextBlock_9A7EE42FAB54584D9463F86ECE0BAC60" xlink:type="arc" />
    <link:label id="lab_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_C287027B32808593D5EF759876F68471_verboseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_84D343CF82D55FDE92283620764F8EEB" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Investment Securities</link:label>
    <link:label id="lab_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_C287027B32808593D5EF759876F68471_label_en-US" xlink:label="lab_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_84D343CF82D55FDE92283620764F8EEB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock" xlink:label="loc_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_84D343CF82D55FDE92283620764F8EEB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_84D343CF82D55FDE92283620764F8EEB" xlink:to="lab_us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_84D343CF82D55FDE92283620764F8EEB" xlink:type="arc" />
    <link:label id="lab_us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_E71F70DE9252A153F41F7598770233A6_terseLabel_en-US" xlink:label="lab_us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_1A7FEEAD3BE154B3BDD7AD81B5BC38B6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mergers and Acquisitions</link:label>
    <link:label id="lab_us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_E71F70DE9252A153F41F7598770233A6_label_en-US" xlink:label="lab_us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_1A7FEEAD3BE154B3BDD7AD81B5BC38B6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Mergers, Acquisitions and Dispositions Disclosures [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock" xlink:label="loc_us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_1A7FEEAD3BE154B3BDD7AD81B5BC38B6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_1A7FEEAD3BE154B3BDD7AD81B5BC38B6" xlink:to="lab_us-gaap_MergersAcquisitionsAndDispositionsDisclosuresTextBlock_1A7FEEAD3BE154B3BDD7AD81B5BC38B6" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_29A406C0A2C7D6E05AF4A6949D7DB206_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_29A406C0A2C7D6E05AF4A6949D7DB206" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Expense Information</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_29A406C0A2C7D6E05AF4A6949D7DB206_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_29A406C0A2C7D6E05AF4A6949D7DB206" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Amount [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_29A406C0A2C7D6E05AF4A6949D7DB206" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_29A406C0A2C7D6E05AF4A6949D7DB206" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_29A406C0A2C7D6E05AF4A6949D7DB206" xlink:type="arc" />
    <link:label id="lab_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67_terseLabel_en-US" xlink:label="lab_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Federal Tax Rate Prior to Enactment of The Tax Cuts and Jobs Act</link:label>
    <link:label id="lab_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67_label_en-US" xlink:label="lab_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Federal Tax Rate Prior to Enactment of The Tax Cuts and Jobs Act</link:label>
    <link:label id="lab_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67_documentation_en-US" xlink:label="lab_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Federal Tax Rate Prior to Enactment of The Tax Cuts and Jobs Act</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct" xlink:label="loc_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67" xlink:to="lab_gbci_FederalTaxRatePriortoEnactmentofTheTaxCutsandJobsAct_A0C13530C4F40A6E0A84A687D04A4C67" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_C5770A52E0D65914F8D9A6924A4359BD_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_C5770A52E0D65914F8D9A6924A4359BD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Expense Attributable to Decrease in Income Tax Rate</link:label>
    <link:label id="lab_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_C5770A52E0D65914F8D9A6924A4359BD_label_en-US" xlink:label="lab_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_C5770A52E0D65914F8D9A6924A4359BD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_C5770A52E0D65914F8D9A6924A4359BD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_C5770A52E0D65914F8D9A6924A4359BD" xlink:to="lab_us-gaap_IncomeTaxReconciliationChangeInEnactedTaxRate_C5770A52E0D65914F8D9A6924A4359BD" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxUncertaintiesAbstract_77A9E56FCA2777DE195FA65DC8D0F7D7_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxUncertaintiesAbstract_77A9E56FCA2777DE195FA65DC8D0F7D7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Uncertainties</link:label>
    <link:label id="lab_us-gaap_IncomeTaxUncertaintiesAbstract_77A9E56FCA2777DE195FA65DC8D0F7D7_label_en-US" xlink:label="lab_us-gaap_IncomeTaxUncertaintiesAbstract_77A9E56FCA2777DE195FA65DC8D0F7D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Uncertainties [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxUncertaintiesAbstract" xlink:label="loc_us-gaap_IncomeTaxUncertaintiesAbstract_77A9E56FCA2777DE195FA65DC8D0F7D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxUncertaintiesAbstract_77A9E56FCA2777DE195FA65DC8D0F7D7" xlink:to="lab_us-gaap_IncomeTaxUncertaintiesAbstract_77A9E56FCA2777DE195FA65DC8D0F7D7" xlink:type="arc" />
    <link:label id="lab_us-gaap_UnrecognizedTaxBenefits_21750B10360049C70448A65DC8D0D056_verboseLabel_en-US" xlink:label="lab_us-gaap_UnrecognizedTaxBenefits_21750B10360049C70448A65DC8D0D056" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Unrecognized income tax benefit</link:label>
    <link:label id="lab_us-gaap_UnrecognizedTaxBenefits_21750B10360049C70448A65DC8D0D056_label_en-US" xlink:label="lab_us-gaap_UnrecognizedTaxBenefits_21750B10360049C70448A65DC8D0D056" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unrecognized Tax Benefits</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefits" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_21750B10360049C70448A65DC8D0D056" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrecognizedTaxBenefits_21750B10360049C70448A65DC8D0D056" xlink:to="lab_us-gaap_UnrecognizedTaxBenefits_21750B10360049C70448A65DC8D0D056" xlink:type="arc" />
    <link:label id="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_D9BC0F411C5D894098F8A65DC8D02121_terseLabel_en-US" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_D9BC0F411C5D894098F8A65DC8D02121" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued liabilities for the payment of interest or penalties</link:label>
    <link:label id="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_D9BC0F411C5D894098F8A65DC8D02121_label_en-US" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_D9BC0F411C5D894098F8A65DC8D02121" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_D9BC0F411C5D894098F8A65DC8D02121" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_D9BC0F411C5D894098F8A65DC8D02121" xlink:to="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_D9BC0F411C5D894098F8A65DC8D02121" xlink:type="arc" />
    <link:label id="lab_us-gaap_ValuationAllowanceAbstract_55B859C8FCB8B8307B71A65DC8D0492F_terseLabel_en-US" xlink:label="lab_us-gaap_ValuationAllowanceAbstract_55B859C8FCB8B8307B71A65DC8D0492F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Valuation Allowance</link:label>
    <link:label id="lab_us-gaap_ValuationAllowanceAbstract_55B859C8FCB8B8307B71A65DC8D0492F_label_en-US" xlink:label="lab_us-gaap_ValuationAllowanceAbstract_55B859C8FCB8B8307B71A65DC8D0492F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Valuation Allowance [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ValuationAllowanceAbstract" xlink:label="loc_us-gaap_ValuationAllowanceAbstract_55B859C8FCB8B8307B71A65DC8D0492F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ValuationAllowanceAbstract_55B859C8FCB8B8307B71A65DC8D0492F" xlink:to="lab_us-gaap_ValuationAllowanceAbstract_55B859C8FCB8B8307B71A65DC8D0492F" xlink:type="arc" />
    <link:label id="lab_us-gaap_DeferredTaxAssetsValuationAllowance_04F6276B6DA4F57FFAD6A65DC8D0CD04_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsValuationAllowance_04F6276B6DA4F57FFAD6A65DC8D0CD04" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Deferred tax valuation allowance</link:label>
    <link:label id="lab_us-gaap_DeferredTaxAssetsValuationAllowance_04F6276B6DA4F57FFAD6A65DC8D0CD04_label_en-US" xlink:label="lab_us-gaap_DeferredTaxAssetsValuationAllowance_04F6276B6DA4F57FFAD6A65DC8D0CD04" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Deferred Tax Assets, Valuation Allowance</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_04F6276B6DA4F57FFAD6A65DC8D0CD04" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredTaxAssetsValuationAllowance_04F6276B6DA4F57FFAD6A65DC8D0CD04" xlink:to="lab_us-gaap_DeferredTaxAssetsValuationAllowance_04F6276B6DA4F57FFAD6A65DC8D0CD04" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7_terseLabel_en-US" xlink:label="lab_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Loss and Tax Credit Carryforwards [Table]</link:label>
    <link:label id="lab_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7_label_en-US" xlink:label="lab_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Loss and Tax Credit Carryforwards [Table]</link:label>
    <link:label id="lab_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7_documentation_en-US" xlink:label="lab_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Operating Loss and Tax Credit Carryforwards [Table]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingLossandTaxCreditCarryforwardsTable" xlink:label="loc_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7" xlink:to="lab_gbci_OperatingLossandTaxCreditCarryforwardsTable_70E53CE4E60993F26EC9A65DC8C050A7" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxAuthorityNameAxis_1D18F5A962DD73220BDEA65DC8C033F6_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxAuthorityNameAxis_1D18F5A962DD73220BDEA65DC8C033F6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Authority, Name [Axis]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxAuthorityNameAxis_1D18F5A962DD73220BDEA65DC8C033F6_label_en-US" xlink:label="lab_us-gaap_IncomeTaxAuthorityNameAxis_1D18F5A962DD73220BDEA65DC8C033F6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Authority, Name [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityNameAxis" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameAxis_1D18F5A962DD73220BDEA65DC8C033F6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameAxis_1D18F5A962DD73220BDEA65DC8C033F6" xlink:to="lab_us-gaap_IncomeTaxAuthorityNameAxis_1D18F5A962DD73220BDEA65DC8C033F6" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeTaxAuthorityNameDomain_F848B526C5A143C3E08FA65DC8C0BD51_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxAuthorityNameDomain_F848B526C5A143C3E08FA65DC8C0BD51" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Tax Authority, Name [Domain]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxAuthorityNameDomain_F848B526C5A143C3E08FA65DC8C0BD51_label_en-US" xlink:label="lab_us-gaap_IncomeTaxAuthorityNameDomain_F848B526C5A143C3E08FA65DC8C0BD51" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Authority, Name [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxAuthorityNameDomain" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameDomain_F848B526C5A143C3E08FA65DC8C0BD51" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameDomain_F848B526C5A143C3E08FA65DC8C0BD51" xlink:to="lab_us-gaap_IncomeTaxAuthorityNameDomain_F848B526C5A143C3E08FA65DC8C0BD51" xlink:type="arc" />
    <link:label id="lab_us-gaap_TaxPeriodAxis_B7AB0B4BC353560479D0A65DC8D070E0_terseLabel_en-US" xlink:label="lab_us-gaap_TaxPeriodAxis_B7AB0B4BC353560479D0A65DC8D070E0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax Period [Axis]</link:label>
    <link:label id="lab_us-gaap_TaxPeriodAxis_B7AB0B4BC353560479D0A65DC8D070E0_label_en-US" xlink:label="lab_us-gaap_TaxPeriodAxis_B7AB0B4BC353560479D0A65DC8D070E0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Period [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxPeriodAxis" xlink:label="loc_us-gaap_TaxPeriodAxis_B7AB0B4BC353560479D0A65DC8D070E0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TaxPeriodAxis_B7AB0B4BC353560479D0A65DC8D070E0" xlink:to="lab_us-gaap_TaxPeriodAxis_B7AB0B4BC353560479D0A65DC8D070E0" xlink:type="arc" />
    <link:label id="lab_us-gaap_TaxPeriodDomain_69E4191684B799F81893A65DC8D05CFD_terseLabel_en-US" xlink:label="lab_us-gaap_TaxPeriodDomain_69E4191684B799F81893A65DC8D05CFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax Period [Domain]</link:label>
    <link:label id="lab_us-gaap_TaxPeriodDomain_69E4191684B799F81893A65DC8D05CFD_label_en-US" xlink:label="lab_us-gaap_TaxPeriodDomain_69E4191684B799F81893A65DC8D05CFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Period [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxPeriodDomain" xlink:label="loc_us-gaap_TaxPeriodDomain_69E4191684B799F81893A65DC8D05CFD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TaxPeriodDomain_69E4191684B799F81893A65DC8D05CFD" xlink:to="lab_us-gaap_TaxPeriodDomain_69E4191684B799F81893A65DC8D05CFD" xlink:type="arc" />
    <link:label id="lab_us-gaap_EarliestTaxYearMember_C2E15B1AAF78913C77B3A65DC8D0938C_terseLabel_en-US" xlink:label="lab_us-gaap_EarliestTaxYearMember_C2E15B1AAF78913C77B3A65DC8D0938C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Earliest Tax Year</link:label>
    <link:label id="lab_us-gaap_EarliestTaxYearMember_C2E15B1AAF78913C77B3A65DC8D0938C_label_en-US" xlink:label="lab_us-gaap_EarliestTaxYearMember_C2E15B1AAF78913C77B3A65DC8D0938C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earliest Tax Year [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EarliestTaxYearMember" xlink:label="loc_us-gaap_EarliestTaxYearMember_C2E15B1AAF78913C77B3A65DC8D0938C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarliestTaxYearMember_C2E15B1AAF78913C77B3A65DC8D0938C" xlink:to="lab_us-gaap_EarliestTaxYearMember_C2E15B1AAF78913C77B3A65DC8D0938C" xlink:type="arc" />
    <link:label id="lab_us-gaap_LatestTaxYearMember_EAA30EC5A22771AC4714A65DC8D09E0B_terseLabel_en-US" xlink:label="lab_us-gaap_LatestTaxYearMember_EAA30EC5A22771AC4714A65DC8D09E0B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Latest Tax Year</link:label>
    <link:label id="lab_us-gaap_LatestTaxYearMember_EAA30EC5A22771AC4714A65DC8D09E0B_label_en-US" xlink:label="lab_us-gaap_LatestTaxYearMember_EAA30EC5A22771AC4714A65DC8D09E0B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Latest Tax Year [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LatestTaxYearMember" xlink:label="loc_us-gaap_LatestTaxYearMember_EAA30EC5A22771AC4714A65DC8D09E0B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LatestTaxYearMember_EAA30EC5A22771AC4714A65DC8D09E0B" xlink:to="lab_us-gaap_LatestTaxYearMember_EAA30EC5A22771AC4714A65DC8D09E0B" xlink:type="arc" />
    <link:label id="lab_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0_terseLabel_en-US" xlink:label="lab_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Loss and Tax Credit Carryforwards</link:label>
    <link:label id="lab_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0_label_en-US" xlink:label="lab_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Loss and Tax Credit Carryforwards [Line Items]</link:label>
    <link:label id="lab_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0_documentation_en-US" xlink:label="lab_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">[Line Items] for Operating Loss and Tax Credit Carryforwards [Table]</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_OperatingLossandTaxCreditCarryforwardsLineItems" xlink:label="loc_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0" xlink:to="lab_gbci_OperatingLossandTaxCreditCarryforwardsLineItems_5F3143DACBF7E7EB1DEEA65DC8D0CFE0" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLossCarryforwards_3944A9300FF3B494E60CA65DC8D0E0AE_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLossCarryforwards_3944A9300FF3B494E60CA65DC8D0E0AE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Loss Carryforwards, Amount</link:label>
    <link:label id="lab_us-gaap_OperatingLossCarryforwards_3944A9300FF3B494E60CA65DC8D0E0AE_label_en-US" xlink:label="lab_us-gaap_OperatingLossCarryforwards_3944A9300FF3B494E60CA65DC8D0E0AE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Loss Carryforwards</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLossCarryforwards" xlink:label="loc_us-gaap_OperatingLossCarryforwards_3944A9300FF3B494E60CA65DC8D0E0AE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLossCarryforwards_3944A9300FF3B494E60CA65DC8D0E0AE" xlink:to="lab_us-gaap_OperatingLossCarryforwards_3944A9300FF3B494E60CA65DC8D0E0AE" xlink:type="arc" />
    <link:label id="lab_us-gaap_OperatingLossCarryforwardsExpirationDate_3C0517D2DB79CB39F1AAA65DC8D01B46_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLossCarryforwardsExpirationDate_3C0517D2DB79CB39F1AAA65DC8D01B46" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Operating Loss Carryforwards, Expiration Date</link:label>
    <link:label id="lab_us-gaap_OperatingLossCarryforwardsExpirationDate_3C0517D2DB79CB39F1AAA65DC8D01B46_label_en-US" xlink:label="lab_us-gaap_OperatingLossCarryforwardsExpirationDate_3C0517D2DB79CB39F1AAA65DC8D01B46" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Loss Carryforwards, Expiration Date</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLossCarryforwardsExpirationDate" xlink:label="loc_us-gaap_OperatingLossCarryforwardsExpirationDate_3C0517D2DB79CB39F1AAA65DC8D01B46" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLossCarryforwardsExpirationDate_3C0517D2DB79CB39F1AAA65DC8D01B46" xlink:to="lab_us-gaap_OperatingLossCarryforwardsExpirationDate_3C0517D2DB79CB39F1AAA65DC8D01B46" xlink:type="arc" />
    <link:label id="lab_us-gaap_TaxCreditCarryforwardAmount_0923BB6DFFF7863129B3A65DC8D0F04C_terseLabel_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardAmount_0923BB6DFFF7863129B3A65DC8D0F04C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Tax Credit Carryforward, Amount</link:label>
    <link:label id="lab_us-gaap_TaxCreditCarryforwardAmount_0923BB6DFFF7863129B3A65DC8D0F04C_label_en-US" xlink:label="lab_us-gaap_TaxCreditCarryforwardAmount_0923BB6DFFF7863129B3A65DC8D0F04C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Tax Credit Carryforward, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TaxCreditCarryforwardAmount" xlink:label="loc_us-gaap_TaxCreditCarryforwardAmount_0923BB6DFFF7863129B3A65DC8D0F04C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TaxCreditCarryforwardAmount_0923BB6DFFF7863129B3A65DC8D0F04C" xlink:to="lab_us-gaap_TaxCreditCarryforwardAmount_0923BB6DFFF7863129B3A65DC8D0F04C" xlink:type="arc" />
    <link:label id="lab_us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_278674F691DE9AC25304759878874F53_verboseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_161DF26EBAD957BAA7AF6BF84F0A208D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Regulatory Capital</link:label>
    <link:label id="lab_us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_278674F691DE9AC25304759878874F53_label_en-US" xlink:label="lab_us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_161DF26EBAD957BAA7AF6BF84F0A208D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Regulatory Capital Requirements under Banking Regulations [Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock" xlink:label="loc_us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_161DF26EBAD957BAA7AF6BF84F0A208D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_161DF26EBAD957BAA7AF6BF84F0A208D" xlink:to="lab_us-gaap_RegulatoryCapitalRequirementsUnderBankingRegulationsTextBlock_161DF26EBAD957BAA7AF6BF84F0A208D" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingAssetsTable_7FAAA9ACC49EC9A513EA759877207125_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingAssetsTable_2DF15D4A09E2501EAECA903E243EADCD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Offsetting Assets [Table]</link:label>
    <link:label id="lab_us-gaap_OffsettingAssetsTable_7FAAA9ACC49EC9A513EA759877207125_label_en-US" xlink:label="lab_us-gaap_OffsettingAssetsTable_2DF15D4A09E2501EAECA903E243EADCD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Assets [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OffsettingAssetsTable" xlink:label="loc_us-gaap_OffsettingAssetsTable_2DF15D4A09E2501EAECA903E243EADCD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingAssetsTable_2DF15D4A09E2501EAECA903E243EADCD" xlink:to="lab_us-gaap_OffsettingAssetsTable_2DF15D4A09E2501EAECA903E243EADCD" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingAssetsLineItems_D703D76CC4AF0BAAAAEA75987720F4BA_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingAssetsLineItems_2BA897A17FFA5269BABCA5BB7A8A4DD4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Offsetting Assets [Line Items]</link:label>
    <link:label id="lab_us-gaap_OffsettingAssetsLineItems_D703D76CC4AF0BAAAAEA75987720F4BA_label_en-US" xlink:label="lab_us-gaap_OffsettingAssetsLineItems_2BA897A17FFA5269BABCA5BB7A8A4DD4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Assets [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OffsettingAssetsLineItems" xlink:label="loc_us-gaap_OffsettingAssetsLineItems_2BA897A17FFA5269BABCA5BB7A8A4DD4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingAssetsLineItems_2BA897A17FFA5269BABCA5BB7A8A4DD4" xlink:to="lab_us-gaap_OffsettingAssetsLineItems_2BA897A17FFA5269BABCA5BB7A8A4DD4" xlink:type="arc" />
    <link:label id="lab_us-gaap_OffsettingDerivativeAssetsAbstract_9E6A9CA75EFE0824A7A875987720780A_terseLabel_en-US" xlink:label="lab_us-gaap_OffsettingDerivativeAssetsAbstract_78E281F251E35D7C9F5F6E82682DA83E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Offsetting Derivative Assets</link:label>
    <link:label id="lab_us-gaap_OffsettingDerivativeAssetsAbstract_9E6A9CA75EFE0824A7A875987720780A_label_en-US" xlink:label="lab_us-gaap_OffsettingDerivativeAssetsAbstract_78E281F251E35D7C9F5F6E82682DA83E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Offsetting Derivative Assets [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OffsettingDerivativeAssetsAbstract" xlink:label="loc_us-gaap_OffsettingDerivativeAssetsAbstract_78E281F251E35D7C9F5F6E82682DA83E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OffsettingDerivativeAssetsAbstract_78E281F251E35D7C9F5F6E82682DA83E" xlink:to="lab_us-gaap_OffsettingDerivativeAssetsAbstract_78E281F251E35D7C9F5F6E82682DA83E" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_FA01107ABE8C7A85F19E75987720DD79_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_F0B03457192D51A1B3E50EF41B5FF361" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gross Amounts of Recognized Assets</link:label>
    <link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_FA01107ABE8C7A85F19E75987720DD79_label_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_F0B03457192D51A1B3E50EF41B5FF361" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Asset, Fair Value, Gross Asset</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_F0B03457192D51A1B3E50EF41B5FF361" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_F0B03457192D51A1B3E50EF41B5FF361" xlink:to="lab_us-gaap_DerivativeFairValueOfDerivativeAsset_F0B03457192D51A1B3E50EF41B5FF361" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeAssetFairValueGrossLiability_6E2C308A56363F69A0CA7598772040A5_negatedLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssetFairValueGrossLiability_34B6D04EAE7E57BD943B73D0EE5F4020" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gross Amounts Offset in the Statements of Financial Position</link:label>
    <link:label id="lab_us-gaap_DerivativeAssetFairValueGrossLiability_6E2C308A56363F69A0CA7598772040A5_label_en-US" xlink:label="lab_us-gaap_DerivativeAssetFairValueGrossLiability_34B6D04EAE7E57BD943B73D0EE5F4020" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Asset, Fair Value, Gross Liability</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeAssetFairValueGrossLiability" xlink:label="loc_us-gaap_DerivativeAssetFairValueGrossLiability_34B6D04EAE7E57BD943B73D0EE5F4020" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeAssetFairValueGrossLiability_34B6D04EAE7E57BD943B73D0EE5F4020" xlink:to="lab_us-gaap_DerivativeAssetFairValueGrossLiability_34B6D04EAE7E57BD943B73D0EE5F4020" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_82397E45F4C795D70D7475987720F8D4_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_8114AA4A35D8589D8F2DD8AD17C730C4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net Amounts of Assets Presented in the Statements of Financial Position</link:label>
    <link:label id="lab_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_82397E45F4C795D70D7475987720F8D4_label_en-US" xlink:label="lab_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_8114AA4A35D8589D8F2DD8AD17C730C4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Asset, Fair Value, Amount Not Offset Against Collateral</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_8114AA4A35D8589D8F2DD8AD17C730C4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_8114AA4A35D8589D8F2DD8AD17C730C4" xlink:to="lab_us-gaap_DerivativeFairValueOfDerivativeAssetAmountNotOffsetAgainstCollateral_8114AA4A35D8589D8F2DD8AD17C730C4" xlink:type="arc" />
    <link:label id="lab_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_B1E83BD42911A73D0C3E7598791C9E1D_verboseLabel_en-US" xlink:label="lab_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_5C1C869658205FFA84DFA591F46BA502" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Scheduled maturities of time deposits</link:label>
    <link:label id="lab_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_B1E83BD42911A73D0C3E7598791C9E1D_label_en-US" xlink:label="lab_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_5C1C869658205FFA84DFA591F46BA502" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scheduled Maturities of Certificates of Deposit [Table Text Block]</link:label>
    <link:label id="lab_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_B1E83BD42911A73D0C3E7598791C9E1D_documentation_en-US" xlink:label="lab_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_5C1C869658205FFA84DFA591F46BA502" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Scheduled maturities of certificates of deposit.</link:label>
    <link:loc xlink:href="gbci-20171231.xsd#gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock" xlink:label="loc_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_5C1C869658205FFA84DFA591F46BA502" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_5C1C869658205FFA84DFA591F46BA502" xlink:to="lab_gbci_ScheduledMaturitiesOfCertificatesOfDepositTableTextBlock_5C1C869658205FFA84DFA591F46BA502" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_2D2FEF9FD8D9352F5B777598776F472A_verboseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_3E6566F96F8D5BB7A865BCD135FDE6E9" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Summarized unaudited quarterly financial data</link:label>
    <link:label id="lab_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_2D2FEF9FD8D9352F5B777598776F472A_label_en-US" xlink:label="lab_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_3E6566F96F8D5BB7A865BCD135FDE6E9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Quarterly Financial Information [Table Text Block]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock" xlink:label="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_3E6566F96F8D5BB7A865BCD135FDE6E9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_3E6566F96F8D5BB7A865BCD135FDE6E9" xlink:to="lab_us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock_3E6566F96F8D5BB7A865BCD135FDE6E9" xlink:type="arc" />
  </link:labelLink>
</link:linkbase>
