XML 34 R24.htm IDEA: XBRL DOCUMENT
v3.21.1

Loans Receivable, Net (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Receivables [Abstract] |
Summary of loans receivable | The following table presents loans receivable for each portfolio segment of loans:
(Dollars in thousands) | March 31, 2021 |  | December 31, 2020
Residential real estate | $ | 745,097 |  |  | 802,508 |
Commercial real estate | 6,474,701 |  |  | 6,315,895 |
Other commercial | 3,100,584 |  |  | 3,054,817 |
Home equity | 625,369 |  |  | 636,405 |
Other consumer | 324,178 |  |  | 313,071 |
Loans receivable | 11,269,929 |  |  | 11,122,696 |
Allowance for credit losses | (156,446) |  |  | (158,243) |
Loans receivable, net | $ | 11,113,483 |  |  | 10,964,453 |
Net deferred origination (fees) costs included in loans receivable | $ | (37,946) |  |  | (26,709) |
Net purchase accounting (discounts) premiums included in loans receivable | $ | (15,122) |  |  | (17,091) |
Accrued interest receivable on loans | $ | 50,989 |  |  | 53,538 |
Summary of the activity in the ACL | The following tables summarize the activity in the ACL:
| Three Months ended March 31, 2021
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Balance at beginning of period | $ | 158,243 |  |  | 9,604 |  |  | 86,999 |  |  | 49,133 |  |  | 8,182 |  |  | 4,325 |
Provision for credit losses | 489 |  |  | (582) |  |  | 7,463 |  |  | (7,265) |  |  | (89) |  |  | 962 |
Charge-offs | (4,246) |  |  | (38) |  |  | — |  |  | (2,762) |  |  | (45) |  |  | (1,401) |
Recoveries | 1,960 |  |  | 34 |  |  | 789 |  |  | 279 |  |  | 20 |  |  | 838 |
Balance at end of period | $ | 156,446 |  |  | 9,018 |  |  | 95,251 |  |  | 39,385 |  |  | 8,068 |  |  | 4,724 |
| Three Months ended March 31, 2020
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Balance at beginning of period | $ | 124,490 |  |  | 10,111 |  |  | 69,496 |  |  | 36,129 |  |  | 4,937 |  |  | 3,817 |
Impact of adopting CECL | 3,720 |  |  | 3,584 |  |  | 10,533 |  |  | (13,759) |  |  | 3,400 |  |  | (38) |
Acquisitions | 49 |  |  | — |  |  | 49 |  |  | — |  |  |  |  | — |
Provision for credit losses | 22,744 |  |  | (4,369) |  |  | (9,433) |  |  | 34,133 |  |  | (508) |  |  | 2,921 |
Charge-offs | (2,567) |  |  | (20) |  |  | (30) |  |  | (785) |  |  | (1) |  |  | (1,731) |
Recoveries | 1,754 |  |  | 9 |  |  | 470 |  |  | 454 |  |  | 106 |  |  | 715 |
Balance at end of period | $ | 150,190 |  |  | 9,315 |  |  | 71,085 |  |  | 56,172 |  |  | 7,934 |  |  | 5,684 |
Loan portfolio aging analysis | The following tables present an aging analysis of the recorded investment in loans:
| March 31, 2021
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Accruing loans 30-59 days past due | $ | 41,744 |  |  | 5,201 |  |  | 5,737 |  |  | 28,277 |  |  | 1,412 |  |  | 1,117 |
Accruing loans 60-89 days past due | 2,872 |  |  | 426 |  |  | 1,476 |  |  | 510 |  |  | 276 |  |  | 184 |
Accruing loans 90 days or more past due | 3,733 |  |  | 188 |  |  | 2,319 |  |  | 961 |  |  | 26 |  |  | 239 |
Non-accrual loans with no ACL | 28,654 |  |  | 3,006 |  |  | 13,484 |  |  | 8,400 |  |  | 2,756 |  |  | 1,008 |
Non-accrual loans with ACL | 1,233 |  |  | 270 |  |  | 451 |  |  | 423 |  |  | 49 |  |  | 40 |
Total past due and non-accrual loans | 78,236 |  |  | 9,091 |  |  | 23,467 |  |  | 38,571 |  |  | 4,519 |  |  | 2,588 |
Current loans receivable | 11,191,693 |  |  | 736,006 |  |  | 6,451,234 |  |  | 3,062,013 |  |  | 620,850 |  |  | 321,590 |
Total loans receivable | $ | 11,269,929 |  |  | 745,097 |  |  | 6,474,701 |  |  | 3,100,584 |  |  | 625,369 |  |  | 324,178 |
| December 31, 2020
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Accruing loans 30-59 days past due | $ | 17,123 |  |  | 6,058 |  |  | 3,854 |  |  | 4,039 |  |  | 2,130 |  |  | 1,042 |
Accruing loans 60-89 days past due | 5,598 |  |  | 584 |  |  | 2,299 |  |  | 809 |  |  | 756 |  |  | 1,150 |
Accruing loans 90 days or more past due | 1,725 |  |  | 934 |  |  | 231 |  |  | 293 |  |  | 135 |  |  | 132 |
Non-accrual loans with no ACL | 29,532 |  |  | 3,129 |  |  | 14,030 |  |  | 9,231 |  |  | 2,664 |  |  | 478 |
Non-accrual loans with ACL | 2,432 |  |  | 274 |  |  | 1,787 |  |  | 278 |  |  | 49 |  |  | 44 |
Total past due and non-accrual loans | 56,410 |  |  | 10,979 |  |  | 22,201 |  |  | 14,650 |  |  | 5,734 |  |  | 2,846 |
Current loans receivable | 11,066,286 |  |  | 791,529 |  |  | 6,293,694 |  |  | 3,040,167 |  |  | 630,671 |  |  | 310,225 |
Total loans receivable | $ | 11,122,696 |  |  | 802,508 |  |  | 6,315,895 |  |  | 3,054,817 |  |  | 636,405 |  |  | 313,071 |
Collateral dependent loans | The following table presents the amortized cost basis of collateral-dependent loans by collateral type:
| March 31, 2021
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Business assets | $ | 26,583 |  |  | — |  |  | 33 |  |  | 26,419 |  |  | — |  |  | 131 |
Residential real estate | 7,358 |  |  | 3,216 |  |  | 894 |  |  | 191 |  |  | 2,612 |  |  | 445 |
Other real estate | 26,041 |  |  | 654 |  |  | 23,799 |  |  | 1,049 |  |  | 193 |  |  | 346 |
Other | 26,033 |  |  | — |  |  | — |  |  | 25,597 |  |  | — |  |  | 436 |
Total | $ | 86,015 |  |  | 3,870 |  |  | 24,726 |  |  | 53,256 |  |  | 2,805 |  |  | 1,358 |
| December 31, 2020
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
Business assets | $ | 4,325 |  |  | — |  |  | 37 |  |  | 4,288 |  |  | — |  |  | — |
Residential real estate | 7,148 |  |  | 3,338 |  |  | 1,043 |  |  | 198 |  |  | 2,513 |  |  | 56 |
Other real estate | 16,127 |  |  | 64 |  |  | 14,738 |  |  | 1,086 |  |  | 200 |  |  | 39 |
Other | 36,855 |  |  | — |  |  | — |  |  | 36,469 |  |  | — |  |  | 386 |
Total | $ | 64,455 |  |  | 3,402 |  |  | 15,818 |  |  | 42,041 |  |  | 2,713 |  |  | 481 |
Summary of TDRs | The following tables present TDRs that occurred during the periods presented and the TDRs that occurred within the previous twelve months that subsequently defaulted during the periods presented:
| Three Months ended March 31, 2021
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
TDRs that occurred during the period |  |  |  |  |  |  |  |  |  |  |
Number of loans | 7 |  |  | 1 |  |  | 4 |  |  | 1 |  |  | — |  |  | 1 |
Pre-modification recorded balance | $ | 1,753 |  |  | 210 |  |  | 1,374 |  |  | 38 |  |  | — |  |  | 131 |
Post-modification recorded balance | $ | 1,753 |  |  | 210 |  |  | 1,374 |  |  | 38 |  |  | — |  |  | 131 |
TDRs that subsequently defaulted |  |  |  |  |  |  |  |  |  |  |
Number of loans | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Recorded balance | $ | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
| Three Months ended March 31, 2020
(Dollars in thousands) | Total |  | Residential Real Estate |  | Commercial Real Estate |  | Other Commercial |  | Home Equity |  | Other Consumer
TDRs that occurred during the period |  |  |  |  |  |  |  |  |  |  |
Number of loans | 5 |  |  | — |  |  | 3 |  |  | 2 |  |  | — |  |  | — |
Pre-modification recorded balance | $ | 7,268 |  |  | — |  |  | 6,857 |  |  | 411 |  |  | — |  |  | — |
Post-modification recorded balance | $ | 7,268 |  |  | — |  |  | 6,857 |  |  | 411 |  |  | — |  |  | — |
TDRs that subsequently defaulted |  |  |  |  |  |  |  |  |  |  |
Number of loans | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Recorded balance | $ | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Credit quality indicators for commercial loans | The following tables present the amortized cost in commercial real estate and other commercial loans based on the Company’s internal risk rating. The date of a modification, renewal or extension of a loan is considered for the year of origination if the terms of the loan are as favorable to the Company as the terms are for a comparable loan to other borrowers with similar credit risk.
| March 31, 2021
(Dollars in thousands) | Total |  | Pass |  | Special Mention |  | Substandard |  | Doubtful/ Loss
Commercial real estate loans |  |  |  |  |  |  |  |  |
Term loans by origination year |  |  |  |  |  |  |  |  |
2021 (year-to-date) | $ | 521,791 |  |  | 521,791 |  |  | — |  |  | — |  |  | — |
2020 | 1,419,202 |  |  | 1,413,986 |  |  | — |  |  | 5,216 |  |  | — |
2019 | 1,011,331 |  |  | 1,000,493 |  |  | — |  |  | 10,838 |  |  | — |
2018 | 851,608 |  |  | 810,910 |  |  | — |  |  | 40,698 |  |  | — |
2017 | 672,239 |  |  | 645,700 |  |  | — |  |  | 26,539 |  |  | — |
Prior | 1,879,439 |  |  | 1,825,762 |  |  | — |  |  | 53,593 |  |  | 84 |
Revolving loans | 119,091 |  |  | 116,298 |  |  | — |  |  | 2,792 |  |  | 1 |
Total | $ | 6,474,701 |  |  | 6,334,940 |  |  | — |  |  | 139,676 |  |  | 85 |
Other commercial loans 1 |  |  |  |  |  |  |  |  |
Term loans by origination year |  |  |  |  |  |  |  |  |
2021 (year-to-date) | $ | 538,043 |  |  | 538,039 |  |  | — |  |  | 4 |  |  | — |
2020 | 974,231 |  |  | 947,941 |  |  | — |  |  | 26,289 |  |  | 1 |
2019 | 281,749 |  |  | 271,082 |  |  | — |  |  | 10,664 |  |  | 3 |
2018 | 223,210 |  |  | 217,040 |  |  | — |  |  | 6,169 |  |  | 1 |
2017 | 241,634 |  |  | 239,229 |  |  | — |  |  | 2,402 |  |  | 3 |
Prior | 378,212 |  |  | 361,319 |  |  | — |  |  | 16,342 |  |  | 551 |
Revolving loans | 463,505 |  |  | 436,725 |  |  | — |  |  | 26,762 |  |  | 18 |
Total | $ | 3,100,584 |  |  | 3,011,375 |  |  | — |  |  | 88,632 |  |  | 577 |
___________________________ 1 Includes PPP loans.
| December 31, 2020
(Dollars in thousands) | Total |  | Pass |  | Special Mention |  | Substandard |  | Doubtful/ Loss
Commercial real estate loans |  |  |  |  |  |  |  |  |
Term loans by origination year |  |  |  |  |  |  |  |  |
2020 | $ | 1,496,094 |  |  | 1,490,947 |  |  | — |  |  | 5,147 |  |  | — |
2019 | 1,077,461 |  |  | 1,069,503 |  |  | — |  |  | 7,958 |  |  | — |
2018 | 914,506 |  |  | 874,673 |  |  | — |  |  | 39,833 |  |  | — |
2017 | 723,448 |  |  | 696,371 |  |  | — |  |  | 27,077 |  |  | — |
2016 | 496,275 |  |  | 481,392 |  |  | — |  |  | 14,883 |  |  | — |
Prior | 1,488,281 |  |  | 1,450,596 |  |  | — |  |  | 37,574 |  |  | 111 |
Revolving loans | 119,830 |  |  | 116,548 |  |  | — |  |  | 3,282 |  |  | — |
Total | $ | 6,315,895 |  |  | 6,180,030 |  |  | — |  |  | 135,754 |  |  | 111 |
Other commercial loans 1 |  |  |  |  |  |  |  |  |
Term loans by origination year |  |  |  |  |  |  |  |  |
2020 | $ | 1,366,664 |  |  | 1,341,316 |  |  | 19,564 |  |  | 5,784 |  |  | — |
2019 | 304,430 |  |  | 284,981 |  |  | 12,582 |  |  | 6,864 |  |  | 3 |
2018 | 241,222 |  |  | 234,988 |  |  | — |  |  | 6,233 |  |  | 1 |
2017 | 269,857 |  |  | 264,651 |  |  | — |  |  | 5,114 |  |  | 92 |
2016 | 179,225 |  |  | 177,164 |  |  | — |  |  | 2,056 |  |  | 5 |
Prior | 218,306 |  |  | 206,431 |  |  | — |  |  | 11,329 |  |  | 546 |
Revolving loans | 475,113 |  |  | 467,929 |  |  | 54 |  |  | 7,112 |  |  | 18 |
Total | $ | 3,054,817 |  |  | 2,977,460 |  |  | 32,200 |  |  | 44,492 |  |  | 665 |
______________________________ 1 Includes PPP loans.
Credit quality indicators for RRE and consumer loans | The following tables present the amortized cost in residential real estate, home equity and other consumer loans based on payment performance:
| March 31, 2021
(Dollars in thousands) | Total |  | Performing |  | 30-89 Days Past Due |  | Non-Accrual and 90 Days or More Past Due
Residential real estate loans |  |  |  |  |  |  |
Term loans by origination year |  |  |  |  |  |  |
2021 (year-to-date) | $ | 37,080 |  |  | 36,673 |  |  | 407 |  |  | — |
2020 | 220,196 |  |  | 219,651 |  |  | 545 |  |  | — |
2019 | 133,625 |  |  | 133,269 |  |  | 356 |  |  | — |
2018 | 83,079 |  |  | 82,095 |  |  | 750 |  |  | 234 |
2017 | 65,036 |  |  | 64,227 |  |  | 809 |  |  | — |
Prior | 203,795 |  |  | 197,805 |  |  | 2,760 |  |  | 3,230 |
Revolving loans | 2,286 |  |  | 2,286 |  |  | — |  |  | — |
Total | $ | 745,097 |  |  | 736,006 |  |  | 5,627 |  |  | 3,464 |
Home equity loans |  |  |  |  |  |  |
Term loans by origination year |  |  |  |  |  |  |
2021 (year-to-date) | $ | 18 |  |  | 18 |  |  | — |  |  | — |
2020 | 71 |  |  | 71 |  |  | — |  |  | — |
2019 | 672 |  |  | 637 |  |  | — |  |  | 35 |
2018 | 1,162 |  |  | 1,162 |  |  | — |  |  | — |
2017 | 1,015 |  |  | 989 |  |  | — |  |  | 26 |
Prior | 12,868 |  |  | 11,890 |  |  | 520 |  |  | 458 |
Revolving loans | 609,563 |  |  | 606,083 |  |  | 1,168 |  |  | 2,312 |
Total | $ | 625,369 |  |  | 620,850 |  |  | 1,688 |  |  | 2,831 |
Other consumer loans |  |  |  |  |  |  |
Term loans by origination year |  |  |  |  |  |  |
2021 (year-to-date) | $ | 48,670 |  |  | 48,652 |  |  | — |  |  | 18 |
2020 | 114,926 |  |  | 114,701 |  |  | 173 |  |  | 52 |
2019 | 57,385 |  |  | 56,947 |  |  | 145 |  |  | 293 |
2018 | 36,830 |  |  | 36,469 |  |  | 168 |  |  | 193 |
2017 | 13,154 |  |  | 13,093 |  |  | 10 |  |  | 51 |
Prior | 25,409 |  |  | 24,347 |  |  | 784 |  |  | 278 |
Revolving loans | 27,804 |  |  | 27,381 |  |  | 21 |  |  | 402 |
Total | $ | 324,178 |  |  | 321,590 |  |  | 1,301 |  |  | 1,287 |

X
- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References No definition available. + Details
Name: | gbci_FinancingReceivableCreditQualityIndicators2TableTextBlock
Namespace Prefix: | gbci_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular Disclosure of Financing Receivable Repayment Through Operation Or Sale Of Collateral. + References No definition available. + Details
Name: | gbci_FinancingReceivableRepaymentThroughOperationOrSaleOfCollateralTableTextBlock
Namespace Prefix: | gbci_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_AllowanceForCreditLossesOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivables by credit quality indicator. The credit quality indicator is a statistic about the credit quality of financing receivables. Examples include, but not limited to, consumer credit risk scores, credit-rating-agency ratings, an entity's internal credit risk grades, loan-to-value ratios, collateral, collection experience and other internal metrics. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953659-111524 + Details
Name: | us-gaap_FinancingReceivableCreditQualityIndicatorsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of aging analysis for financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919253-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953401-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 80 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922355-210448 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5111-111524 + Details
Name: | us-gaap_PastDueFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524 + Details
Name: | us-gaap_TroubledDebtRestructuringsOnFinancingReceivablesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration