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Subordinated Debentures (Details) (USD $) In Thousands, unless otherwise specified |  |  | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 First Company Statutory Trust 2001 | Dec. 31, 2013 First Company Statutory Trust 2003 | Dec. 31, 2013 Glacier Capital Trust II | Dec. 31, 2013 Citizens (ID) Statutory Trust I | Dec. 31, 2013 Glacier Capital Trust III | Dec. 31, 2013 Glacier Capital Trust IV | Dec. 31, 2013 Bank of the San Juans Bancorporation Trust I
Terms of Subordinated Debentures |  |  |  |  |  |  |  |  |
Balance | $ 125,562 | $ 125,418 | $ 3,018 | $ 2,227 | $ 46,393 | $ 5,155 | $ 36,083 | $ 30,928 | $ 1,758
Rate at December 31, 2013 |  |  | 3.537% | 3.496% | 2.994% | 2.894% | 1.533% | 1.813% | 2.058%
Variable Rate Structure |  |  | 3 mo LIBOR plus 3.30 | 3 mo LIBOR plus 3.25 | 3 mo LIBOR plus 2.75 | 3 mo LIBOR plus 2.65 | 3 mo LIBOR plus 1.29 | 3 mo LIBOR plus 1.57 | 3 mo LIBOR plus 1.82
LIBOR Rate Spread |  |  | 3.30% | 3.25% | 2.75% | 2.65% | 1.29% | 1.57% | 1.82%
Maturity Date |  |  | Jul. 31, 2031 | Mar. 26, 2033 | Apr. 07, 2034 | Jun. 17, 2034 | Apr. 07, 2036 | Sep. 15, 2036 | Mar. 01, 2037

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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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