XML 72 R61.htm IDEA: XBRL DOCUMENT
v3.25.3

Loans and Allowance for Credit Losses - Allowance for Credit Losses (Detail) - USD ($) |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
May 01, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | $ 132,966,000 | $ 123,654,000 | $ 118,906,000 | $ 117,718,000 | $ 117,718,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | $ 3,560,000 | (556,000) |  | 3,560,000 |  |
Charge-offs |  | (13,577,000) | (9,789,000) | (26,013,000) | (20,821,000) | (35,428,000)
Recoveries |  | 1,330,000 | 1,004,000 | 7,910,000 | 3,332,000 | 4,248,000
Provision for credit losses |  | 9,442,000 | 11,243,000 | 25,242,000 | 25,883,000 |
Ending Balance |  | 129,605,000 | 126,112,000 | 129,605,000 | 126,112,000 | 118,906,000
Nonaccrual Commercial Loans [Member] |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Loans Held for sale, Amount |  | 1,100,000 |  | 1,100,000 |  | 0
Time and Demand Loans |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (9,871,000) |  | (11,131,000)
Recoveries |  |  |  | 4,102,000 |  | 435,000
Commercial Credit Cards |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (183,000) |  | (251,000)
Recoveries |  |  |  | 25,000 |  | 6,000
Senior Lien |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (221,000) |  | (191,000)
Recoveries |  |  |  | 55,000 |  | 168,000
Junior Lien |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (130,000) |  | (292,000)
Recoveries |  |  |  | 147,000 |  | 202,000
Multifamily |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (461,000) |  | 0
Recoveries |  |  |  | 0 |  | 0
Nonowner Occupied Commercial Real Estate |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (3,463,000) |  | (7,138,000)
Recoveries |  |  |  | 142,000 |  | 59,000
Owner Occupied Commercial Real Estate |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (1,213,000) |  | (1,540,000)
Recoveries |  |  |  | 63,000 |  | 118,000
Automobiles |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (5,293,000) |  | (7,611,000)
Recoveries |  |  |  | 2,296,000 |  | 2,410,000
Consumer Credit Cards |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (253,000) |  | (428,000)
Recoveries |  |  |  | 65,000 |  | 96,000
Other Consumer Loans |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (1,310,000) |  | (1,624,000)
Recoveries |  |  |  | 284,000 |  | 376,000
Construction Residential |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (562,000) |  | 0
Recoveries |  |  |  | 0 |  | 0
Construction Other |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (267,000) |  | (1,092,000)
Recoveries |  |  |  | 0 |  | 6,000
Time and Demand Loans Other |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (1,151,000) |  | (2,110,000)
Recoveries |  |  |  | 181,000 |  | 198,000
Equipment Finance |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Charge-offs |  |  |  | (1,635,000) |  | (2,020,000)
Recoveries |  |  |  | 550,000 |  | 174,000
Commercial, financial, agricultural and other [Member] |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 38,552,000 | 30,608,000 | 29,131,000 | 27,996,000 | 27,996,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 1,616,000 | 0 |  | 1,616,000 |  |
Charge-offs |  | (7,418,000) | (5,980,000) | (12,840,000) | (11,230,000) |
Recoveries |  | 491,000 | 110,000 | 4,858,000 | 633,000 |
Provision for credit losses |  | 8,672,000 | 5,965,000 | 17,532,000 | 13,304,000 |
Ending Balance |  | 40,297,000 | 30,703,000 | 40,297,000 | 30,703,000 | 29,131,000
Commercial, financial, agricultural and other [Member] | Time and Demand Loans |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 26,467,000 | 23,589,000 | 19,433,000 | 22,819,000 | 22,819,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 1,616,000 | 0 |  | 1,616,000 |  |
Charge-offs |  | (6,532,000) | (4,784,000) | (9,871,000) | (8,161,000) |
Recoveries |  | 300,000 | 11,000 | 4,102,000 | 405,000 |
Provision for credit losses |  | 5,536,000 | 3,730,000 | 10,491,000 | 7,483,000 |
Ending Balance |  | 25,771,000 | 22,546,000 | 25,771,000 | 22,546,000 | 19,433,000
Commercial, financial, agricultural and other [Member] | Commercial Credit Cards |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 213,000 | 244,000 | 182,000 | 278,000 | 278,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  | 0 |  | 0 |  |
Charge-offs |  | (59,000) | (81,000) | (183,000) | (183,000) |
Recoveries |  | 3,000 | 5,000 | 25,000 | 5,000 |
Provision for credit losses |  | 116,000 | 69,000 | 249,000 | 137,000 |
Ending Balance |  | 273,000 | 237,000 | 273,000 | 237,000 | 182,000
Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 2,485,000 | 1,483,000 | 1,672,000 | 1,500,000 | 1,500,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 0 | 0 |  | 0 |  |
Charge-offs |  | (318,000) | (594,000) | (1,151,000) | (1,651,000) |
Recoveries |  | 60,000 | 58,000 | 181,000 | 151,000 |
Provision for credit losses |  | (724,000) | 443,000 | 801,000 | 1,390,000 |
Ending Balance |  | 1,503,000 | 1,390,000 | 1,503,000 | 1,390,000 | 1,672,000
Commercial, financial, agricultural and other [Member] | Equipment Finance |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 9,387,000 | 5,292,000 | 7,844,000 | 3,399,000 | 3,399,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  | 0 |  | 0 |  |
Charge-offs |  | (509,000) | (521,000) | (1,635,000) | (1,235,000) |
Recoveries |  | 128,000 | 36,000 | 550,000 | 72,000 |
Provision for credit losses |  | 3,744,000 | 1,723,000 | 5,991,000 | 4,294,000 |
Ending Balance |  | 12,750,000 | 6,530,000 | 12,750,000 | 6,530,000 | 7,844,000
Residential real estate [Member] |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 23,768,000 | 22,173,000 | 22,396,000 | 23,901,000 | 23,901,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 45,000 | (262,000) |  | 45,000 |  |
Charge-offs |  | (125,000) | (106,000) | (351,000) | (361,000) |
Recoveries |  | 19,000 | 51,000 | 202,000 | 221,000 |
Provision for credit losses |  | (1,964,000) | 521,000 | (856,000) | (1,122,000) |
Ending Balance |  | 21,436,000 | 22,639,000 | 21,436,000 | 22,639,000 | 22,396,000
Residential real estate [Member] | Senior Lien |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 16,672,000 | 15,745,000 | 15,758,000 | 16,975,000 | 16,975,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 38,000 | (262,000) |  | 38,000 |  |
Charge-offs |  | (113,000) | (28,000) | (221,000) | (137,000) |
Recoveries |  | 13,000 | 37,000 | 55,000 | 150,000 |
Provision for credit losses |  | (1,503,000) | 249,000 | (823,000) | (985,000) |
Ending Balance |  | 14,807,000 | 16,003,000 | 14,807,000 | 16,003,000 | 15,758,000
Residential real estate [Member] | Junior Lien |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 7,096,000 | 6,428,000 | 6,638,000 | 6,926,000 | 6,926,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 7,000 | 0 |  | 7,000 |  |
Charge-offs |  | (12,000) | (78,000) | (130,000) | (224,000) |
Recoveries |  | 6,000 | 14,000 | 147,000 | 71,000 |
Provision for credit losses |  | (461,000) | 272,000 | (33,000) | (137,000) |
Ending Balance |  | 6,629,000 | 6,636,000 | 6,629,000 | 6,636,000 | 6,638,000
Commercial Real Estate [Member] |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 40,846,000 | 42,544,000 | 40,232,000 | 37,071,000 | 37,071,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 1,087,000 | 0 |  | 1,087,000 |  |
Charge-offs |  | (3,049,000) | (1,423,000) | (5,137,000) | (2,047,000) |
Recoveries |  | 38,000 | 42,000 | 205,000 | 166,000 |
Provision for credit losses |  | 4,424,000 | 3,519,000 | 5,872,000 | 9,492,000 |
Ending Balance |  | 42,259,000 | 44,682,000 | 42,259,000 | 44,682,000 | 40,232,000
Commercial Real Estate [Member] | Multifamily |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 5,439,000 | 5,206,000 | 5,431,000 | 5,233,000 | 5,233,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 120,000 | 0 |  | 120,000 |  |
Charge-offs |  | (461,000) | 0 | (461,000) | 0 |
Recoveries |  | 0 | 0 | 0 | 0 |
Provision for credit losses |  | 1,211,000 | (151,000) | 1,099,000 | (178,000) |
Ending Balance |  | 6,189,000 | 5,055,000 | 6,189,000 | 5,055,000 | 5,431,000
Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 22,906,000 | 25,036,000 | 23,332,000 | 19,995,000 | 19,995,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 943,000 | 0 |  | 943,000 |  |
Charge-offs |  | (2,588,000) | (37,000) | (3,463,000) | (507,000) |
Recoveries |  | 27,000 | 5,000 | 142,000 | 53,000 |
Provision for credit losses |  | 5,219,000 | 2,942,000 | 4,610,000 | 8,405,000 |
Ending Balance |  | 25,564,000 | 27,946,000 | 25,564,000 | 27,946,000 | 23,332,000
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 12,501,000 | 12,302,000 | 11,469,000 | 11,843,000 | 11,843,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 24,000 | 0 |  | 24,000 |  |
Charge-offs |  | 0 | (1,386,000) | (1,213,000) | (1,540,000) |
Recoveries |  | 11,000 | 37,000 | 63,000 | 113,000 |
Provision for credit losses |  | (2,006,000) | 728,000 | 163,000 | 1,265,000 |
Ending Balance |  | 10,506,000 | 11,681,000 | 10,506,000 | 11,681,000 | 11,469,000
Loans to individuals [Member] |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 22,264,000 | 21,940,000 | 21,117,000 | 21,332,000 | 21,332,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 2,000 | 0 |  | 2,000 |  |
Charge-offs |  | (2,156,000) | (2,280,000) | (6,856,000) | (7,148,000) |
Recoveries |  | 782,000 | 801,000 | 2,645,000 | 2,306,000 |
Provision for credit losses |  | (3,173,000) | 1,447,000 | 809,000 | 5,418,000 |
Ending Balance |  | 17,717,000 | 21,908,000 | 17,717,000 | 21,908,000 | 21,117,000
Loans to individuals [Member] | Automobiles |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 20,183,000 | 19,676,000 | 18,693,000 | 19,142,000 | 19,142,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 1,000 | 0 |  | 1,000 |  |
Charge-offs |  | (1,743,000) | (1,827,000) | (5,293,000) | (5,552,000) |
Recoveries |  | 668,000 | 676,000 | 2,296,000 | 1,937,000 |
Provision for credit losses |  | (4,399,000) | 1,067,000 | (988,000) | 4,065,000 |
Ending Balance |  | 14,709,000 | 19,592,000 | 14,709,000 | 19,592,000 | 18,693,000
Loans to individuals [Member] | Consumer Credit Cards |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 338,000 | 346,000 | 341,000 | 372,000 | 372,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date |  | 0 |  | 0 |  |
Charge-offs |  | (84,000) | (120,000) | (253,000) | (348,000) |
Recoveries |  | 17,000 | 33,000 | 65,000 | 78,000 |
Provision for credit losses |  | 203,000 | 81,000 | 321,000 | 238,000 |
Ending Balance |  | 474,000 | 340,000 | 474,000 | 340,000 | 341,000
Loans to individuals [Member] | Other Consumer Loans |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 1,743,000 | 1,918,000 | 2,083,000 | 1,818,000 | 1,818,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 1,000 | 0 |  | 1,000 |  |
Charge-offs |  | (329,000) | (333,000) | (1,310,000) | (1,248,000) |
Recoveries |  | 97,000 | 92,000 | 284,000 | 291,000 |
Provision for credit losses |  | 1,023,000 | 299,000 | 1,476,000 | 1,115,000 |
Ending Balance |  | 2,534,000 | 1,976,000 | 2,534,000 | 1,976,000 | 2,083,000
Real estate construction [Member] |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 7,536,000 | 6,389,000 | 6,030,000 | 7,418,000 | 7,418,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 810,000 | (294,000) |  | 810,000 |  |
Charge-offs |  | (829,000) | 0 | (829,000) | (35,000) |
Recoveries |  | 0 | 0 | 0 | 6,000 |
Provision for credit losses |  | 1,483,000 | (209,000) | 1,885,000 | (1,209,000) |
Ending Balance |  | 7,896,000 | 6,180,000 | 7,896,000 | 6,180,000 | 6,030,000
Real estate construction [Member] | Construction Residential |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 1,018,000 | 372,000 | 114,000 | 970,000 | 970,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | 628,000 | (106,000) |  | 628,000 |  |
Charge-offs |  | (562,000) | 0 | (562,000) | 0 |
Recoveries |  | 0 | 0 | 0 | 0 |
Provision for credit losses |  | 258,000 | (84,000) | 428,000 | (682,000) |
Ending Balance |  | 608,000 | 288,000 | 608,000 | 288,000 | 114,000
Real estate construction [Member] | Construction Other |  |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |  |
Beginning Balance |  | 6,518,000 | 6,017,000 | 5,916,000 | 6,448,000 | 6,448,000
Financing Receivable, Purchased with Credit Deterioration, Allowance for Credit Loss at Acquisition Date | $ 182,000 | (188,000) |  | 182,000 |  |
Charge-offs |  | (267,000) | 0 | (267,000) | (35,000) |
Recoveries |  | 0 | 0 | 0 | 6,000 |
Provision for credit losses |  | 1,225,000 | (125,000) | 1,457,000 | (527,000) |
Ending Balance |  | $ 7,288,000 | $ 5,892,000 | $ 7,288,000 | $ 5,892,000 | $ 5,916,000

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivableRollforward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph c -Publisher SEC Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (1) -Publisher SEC Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (3) -Publisher SEC Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) in allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(4) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-11B Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 79 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-79 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-6 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 19 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-19 + Details
Name: | us-gaap_FinancingReceivablePurchasedWithCreditDeteriorationAllowanceForCreditLossAtAcquisitionDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, before valuation allowance, of financing receivable classified as held-for-sale. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 948 -SubTopic 310 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477011/948-310-45-1 + Details
Name: | us-gaap_LoansReceivableHeldForSaleAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | fcf_NonaccrualCommercialLoansAxis=fcf_NonaccrualCommercialLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_TimeAndDemandLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_CommercialCreditCardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_SeniorLienMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_JuniorLienMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_NonownerOccupiedCommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_OwnerOccupiedCommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_AutomobilesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_ConsumerCreditCardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_OtherConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_ConstructionResidentialMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_ConstructionOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_TimeAndDemandLoansOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=fcf_EquipmentFinanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ResidentialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |