XML 65 R52.htm IDEA: XBRL DOCUMENT
v3.21.1

Loans and Allowance for Credit Losses - Allowance for Credit Losses (Detail) - USD ($) $ in Thousands | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | $ 101,309 |  |  |  |
Charge-offs | (3,765) |  |  |  |
Recoveries | 495 |  |  |  |
Provision for credit losses | (1,276) |  |  |  |
Ending Balance | 101,309 |  | $ 96,763 | $ 101,309 | $ 79,075
Ending balance: individually evaluated for impaired |  |  | 3,107 |  | 9,799
Ending balance: collectively evaluated for impaired |  |  | 93,656 |  | 69,276
Total |  |  | 6,736,894 | 6,761,183 | 6,313,944
Ending balance: individually evaluated for impaired |  |  | 38,459 |  | 45,563
Ending balance: collectively evaluated for impaired |  |  | 6,698,435 |  | 6,268,381
Commercial, financial, agricultural and other [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 17,187 |  |  |  |
Charge-offs | (569) |  |  |  |
Recoveries | 90 |  |  |  |
Provision for credit losses | 5,093 |  |  |  |
Ending Balance | 17,187 |  | 21,801 | 17,187 | 27,728
Ending balance: individually evaluated for impaired |  |  | 2,506 |  | 2,727
Ending balance: collectively evaluated for impaired |  |  | 19,295 |  | 25,001
Total |  |  | 1,555,671 | 1,555,986 | 1,272,240
Ending balance: individually evaluated for impaired |  |  | 9,991 |  | 7,544
Ending balance: collectively evaluated for impaired |  |  | 1,545,680 |  | 1,264,696
Commercial, financial, agricultural and other [Member] | Time and Demand Loans |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 16,838 |  |  |  |
Charge-offs | (460) |  |  |  |
Recoveries | 89 |  |  |  |
Provision for credit losses | 4,960 |  |  |  |
Ending Balance | 16,838 |  | 21,427 | 16,838 |
Ending balance: individually evaluated for impaired |  |  | 2,506 |  |
Ending balance: collectively evaluated for impaired |  |  | 18,921 |  |
Total |  |  | 1,541,280 | 1,541,382 |
Ending balance: individually evaluated for impaired |  |  | 9,991 |  |
Ending balance: collectively evaluated for impaired |  |  | 1,531,289 |  |
Commercial, financial, agricultural and other [Member] | Commercial Credit Cards |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 349 |  |  |  |
Charge-offs | (109) |  |  |  |
Recoveries | 1 |  |  |  |
Provision for credit losses | 133 |  |  |  |
Ending Balance | 349 |  | 374 | 349 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 374 |  |
Total |  |  | 14,391 | 14,604 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 14,391 |  |
Construction |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 7,966 |  |  |  |
Charge-offs | 0 |  |  |  |
Recoveries | 0 |  |  |  |
Provision for credit losses | (3,945) |  |  |  |
Ending Balance | 7,966 |  | 4,021 | 7,966 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 4,021 |  |
Total |  |  | 404,580 |  |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 404,580 |  |
Residential real estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 14,358 |  |  |  |
Charge-offs | (105) |  |  |  |
Recoveries | 37 |  |  |  |
Provision for credit losses | (1,461) |  |  |  |
Ending Balance | 14,358 |  | 12,829 | 14,358 | 7,724
Ending balance: individually evaluated for impaired |  |  | 0 |  | 0
Ending balance: collectively evaluated for impaired |  |  | 12,829 |  | 7,724
Total |  |  | 1,756,615 | 1,750,592 | 1,691,140
Ending balance: individually evaluated for impaired |  |  | 1,055 |  | 1,506
Ending balance: collectively evaluated for impaired |  |  | 1,755,560 |  | 1,689,634
Residential real estate [Member] | Senior Lien |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 7,919 |  |  |  |
Charge-offs | (23) |  |  |  |
Recoveries | 23 |  |  |  |
Provision for credit losses | (692) |  |  |  |
Ending Balance | 7,919 |  | 7,227 | 7,919 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 7,227 |  |
Total |  |  | 1,152,314 | 1,144,323 |
Ending balance: individually evaluated for impaired |  |  | 512 |  |
Ending balance: collectively evaluated for impaired |  |  | 1,151,802 |  |
Residential real estate [Member] | Junior Lien |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 6,439 |  |  |  |
Charge-offs | (82) |  |  |  |
Recoveries | 14 |  |  |  |
Provision for credit losses | (769) |  |  |  |
Ending Balance | 6,439 |  | 5,602 | 6,439 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 5,602 |  |
Total |  |  | 604,301 | 606,269 |
Ending balance: individually evaluated for impaired |  |  | 543 |  |
Ending balance: collectively evaluated for impaired |  |  | 603,758 |  |
Commercial Real Estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 41,953 |  |  |  |
Charge-offs | (1,550) |  |  |  |
Recoveries | 39 |  |  |  |
Provision for credit losses | (2,774) |  |  |  |
Ending Balance | 41,953 |  | 37,668 | 41,953 | 32,503
Ending balance: individually evaluated for impaired |  |  | 601 |  | 7,072
Ending balance: collectively evaluated for impaired |  |  | 37,067 |  | 25,431
Total |  |  | 2,167,506 | 2,211,569 | 2,190,098
Ending balance: individually evaluated for impaired |  |  | 27,413 |  | 36,513
Ending balance: collectively evaluated for impaired |  |  | 2,140,093 |  | 2,153,585
Commercial Real Estate [Member] | Multifamily |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 6,240 |  |  |  |
Charge-offs | (1) |  |  |  |
Recoveries | 0 |  |  |  |
Provision for credit losses | (1,988) |  |  |  |
Ending Balance | 6,240 |  | 4,251 | 6,240 |
Ending balance: individually evaluated for impaired |  |  | 115 |  |
Ending balance: collectively evaluated for impaired |  |  | 4,136 |  |
Total |  |  | 363,604 | 371,239 |
Ending balance: individually evaluated for impaired |  |  | 459 |  |
Ending balance: collectively evaluated for impaired |  |  | 363,145 |  |
Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 28,414 |  |  |  |
Charge-offs | (1,549) |  |  |  |
Recoveries | 39 |  |  |  |
Provision for credit losses | 985 |  |  |  |
Ending Balance | 28,414 |  | 27,889 | 28,414 |
Ending balance: individually evaluated for impaired |  |  | 459 |  |
Ending balance: collectively evaluated for impaired |  |  | 27,430 |  |
Total |  |  | 1,393,968 | 1,421,151 |
Ending balance: individually evaluated for impaired |  |  | 24,883 |  |
Ending balance: collectively evaluated for impaired |  |  | 1,369,085 |  |
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 7,299 |  |  |  |
Charge-offs | 0 |  |  |  |
Recoveries | 0 |  |  |  |
Provision for credit losses | (1,771) |  |  |  |
Ending Balance | 7,299 |  | 5,528 | 7,299 |
Ending balance: individually evaluated for impaired |  |  | 27 |  |
Ending balance: collectively evaluated for impaired |  |  | 5,501 |  |
Total |  |  | 409,934 | 419,179 |
Ending balance: individually evaluated for impaired |  |  | 2,071 |  |
Ending balance: collectively evaluated for impaired |  |  | 407,863 |  |
Loans to individuals [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 19,845 |  |  |  |
Charge-offs | (1,541) |  |  |  |
Recoveries | 329 |  |  |  |
Provision for credit losses | 1,811 |  |  |  |
Ending Balance | 19,845 |  | 20,444 | 19,845 | 8,268
Ending balance: individually evaluated for impaired |  |  | 0 |  | 0
Ending balance: collectively evaluated for impaired |  |  | 20,444 |  | 8,268
Total |  |  | 852,522 | 815,815 | 747,008
Ending balance: individually evaluated for impaired |  |  | 0 |  | 0
Ending balance: collectively evaluated for impaired |  |  | 852,522 |  | 747,008
Loans to individuals [Member] | Automobiles |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 16,133 |  |  |  |
Charge-offs | (680) |  |  |  |
Recoveries | 181 |  |  |  |
Provision for credit losses | 1,254 |  |  |  |
Ending Balance | 16,133 |  | 16,888 | 16,133 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 16,888 |  |
Total |  |  | 759,061 | 712,800 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 759,061 |  |
Loans to individuals [Member] | Consumer Credit Cards |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 635 |  |  |  |
Charge-offs | (168) |  |  |  |
Recoveries | 17 |  |  |  |
Provision for credit losses | 205 |  |  |  |
Ending Balance | 635 |  | 689 | 635 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 689 |  |
Total |  |  | 10,901 | 12,360 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 10,901 |  |
Loans to individuals [Member] | Other Consumer Loans |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 3,077 |  |  |  |
Charge-offs | (693) |  |  |  |
Recoveries | 131 |  |  |  |
Provision for credit losses | 352 |  |  |  |
Ending Balance | $ 3,077 |  | 2,867 | 3,077 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 2,867 |  |
Total |  |  | 82,560 | 90,655 |
Ending balance: individually evaluated for impaired |  |  | 0 |  |
Ending balance: collectively evaluated for impaired |  |  | 82,560 |  |
Real estate construction [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Ending Balance |  |  |  |  | 2,852
Ending balance: individually evaluated for impaired |  |  |  |  | 0
Ending balance: collectively evaluated for impaired |  |  |  |  | 2,852
Total |  |  | $ 404,580 | $ 427,221 | 413,458
Ending balance: individually evaluated for impaired |  |  |  |  | 0
Ending balance: collectively evaluated for impaired |  |  |  |  | 413,458
Acquired Loans [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | $ 52 |  |  |
Charge-offs |  | (162) |  |  |
Recoveries |  | 33 |  |  |
Provision for credit losses |  | 1,665 |  |  |
Ending Balance |  | 52 |  |  | 1,588
Acquired Loans [Member] | Commercial, financial, agricultural and other [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 13 |  |  |
Charge-offs |  | 0 |  |  |
Recoveries |  | 13 |  |  |
Provision for credit losses |  | 324 |  |  |
Ending Balance |  | 13 |  |  | 350
Acquired Loans [Member] | Residential real estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 2 |  |  |
Charge-offs |  | (25) |  |  |
Recoveries |  | 13 |  |  |
Provision for credit losses |  | 10 |  |  |
Ending Balance |  | 2 |  |  | 0
Acquired Loans [Member] | Commercial Real Estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 37 |  |  |
Charge-offs |  | (1) |  |  |
Recoveries |  | 0 |  |  |
Provision for credit losses |  | 1,202 |  |  |
Ending Balance |  | 37 |  |  | 1,238
Acquired Loans [Member] | Loans to individuals [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 0 |  |  |
Charge-offs |  | (136) |  |  |
Recoveries |  | 7 |  |  |
Provision for credit losses |  | 129 |  |  |
Ending Balance |  | 0 |  |  | 0
Acquired Loans [Member] | Real estate construction [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 0 |  |  |
Charge-offs |  | 0 |  |  |
Recoveries |  | 0 |  |  |
Provision for credit losses |  | 0 |  |  |
Ending Balance |  | 0 |  |  | 0
Originated Loans [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 51,585 |  |  |
Charge-offs |  | (3,786) |  |  |
Recoveries |  | 386 |  |  |
Provision for credit losses |  | 29,302 |  |  |
Ending Balance |  | 51,585 |  |  | 77,487
Originated Loans [Member] | Commercial, financial, agricultural and other [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 20,221 |  |  |
Charge-offs |  | (486) |  |  |
Recoveries |  | 68 |  |  |
Provision for credit losses |  | 7,575 |  |  |
Ending Balance |  | 20,221 |  |  | 27,378
Originated Loans [Member] | Residential real estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 4,091 |  |  |
Charge-offs |  | (552) |  |  |
Recoveries |  | 62 |  |  |
Provision for credit losses |  | 4,123 |  |  |
Ending Balance |  | 4,091 |  |  | 7,724
Originated Loans [Member] | Commercial Real Estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 19,731 |  |  |
Charge-offs |  | (265) |  |  |
Recoveries |  | 44 |  |  |
Provision for credit losses |  | 11,755 |  |  |
Ending Balance |  | 19,731 |  |  | 31,265
Originated Loans [Member] | Loans to individuals [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 4,984 |  |  |
Charge-offs |  | (2,483) |  |  |
Recoveries |  | 212 |  |  |
Provision for credit losses |  | 5,555 |  |  |
Ending Balance |  | 4,984 |  |  | 8,268
Originated Loans [Member] | Real estate construction [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance |  | 2,558 |  |  |
Charge-offs |  | 0 |  |  |
Recoveries |  | 0 |  |  |
Provision for credit losses |  | 294 |  |  |
Ending Balance |  | $ 2,558 |  |  | $ 2,852

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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121599878&loc=SL82895884-210446 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + 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 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + 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 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
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/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c) -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_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/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + 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 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + 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 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_CommercialLoanMember
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_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConstructionMember
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_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_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_CommercialRealEstateMember
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_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConsumerLoanMember
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_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=fcf_AcquiredLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=fcf_OriginatedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |