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Loans and Allowance for Credit Losses - Allowance for Credit Losses (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | $ 93,603 | $ 97,038 | $ 92,522 | $ 101,309 |
Charge-offs | (3,370) | (2,906) | (7,099) | (11,510) |
Recoveries | 909 | 629 | 1,976 | 2,036 |
Provision for credit losses | 4,951 | (576) | 8,694 | 2,350 |
Ending Balance | 96,093 | 94,185 | 96,093 | 94,185 | $ 92,522
Ending balance: individually evaluated for impaired | 1,534 | 980 | 1,534 | 980 |
Ending balance: collectively evaluated for impaired | 94,559 | 93,205 | 94,559 | 93,205 |
Loans and Leases Receivable, Net of Deferred Income | (7,348,917) | (6,732,580) | (7,348,917) | (6,732,580) | (6,839,230)
Ending balance: individually evaluated for impaired | 24,628 | 26,148 | 24,628 | 26,148 |
Ending balance: collectively evaluated for impaired | 7,324,289 | 6,706,432 | 7,324,289 | 6,706,432 |
Provision for credit losses | 5,923 | 330 | 11,986 | 1,353 |
Commercial, financial, agricultural and other [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 21,989 | 21,466 | 18,093 | 17,187 |
Charge-offs | (852) | (2,066) | (1,836) | (6,522) |
Recoveries | 154 | 106 | 313 | 299 |
Provision for credit losses | 1,181 | (1,644) | 5,902 | 6,898 |
Ending Balance | 22,472 | 17,862 | 22,472 | 17,862 | 18,093
Ending balance: individually evaluated for impaired | 1,380 | 479 | 1,380 | 479 |
Ending balance: collectively evaluated for impaired | 21,092 | 17,383 | 21,092 | 17,383 |
Loans and Leases Receivable, Net of Deferred Income | (1,169,206) | (1,224,591) | (1,169,206) | (1,224,591) | (1,173,452)
Ending balance: individually evaluated for impaired | 3,853 | 5,561 | 3,853 | 5,561 |
Ending balance: collectively evaluated for impaired | 1,165,353 | 1,219,030 | 1,165,353 | 1,219,030 |
Commercial, financial, agricultural and other [Member] | Time and Demand Loans |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 19,921 | 21,098 | 15,283 | 16,838 |
Charge-offs | (321) | (2,059) | (604) | (6,397) |
Recoveries | 77 | 104 | 155 | 292 |
Provision for credit losses | 869 | (1,561) | 5,712 | 6,849 |
Ending Balance | 20,546 | 17,582 | 20,546 | 17,582 | 15,283
Ending balance: individually evaluated for impaired | 1,380 | 479 | 1,380 | 479 |
Ending balance: collectively evaluated for impaired | 19,166 | 17,103 | 19,166 | 17,103 |
Loans and Leases Receivable, Net of Deferred Income | (1,012,169) | (1,210,694) | (1,012,169) | (1,210,694) | (1,159,524)
Ending balance: individually evaluated for impaired | 3,853 | 5,561 | 3,853 | 5,561 |
Ending balance: collectively evaluated for impaired | 1,008,316 | 1,205,133 | 1,008,316 | 1,205,133 |
Commercial, financial, agricultural and other [Member] | Commercial Credit Cards |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 387 | 368 | 247 | 349 |
Charge-offs | (132) | (7) | (209) | (125) |
Recoveries | 42 | 2 | 68 | 7 |
Provision for credit losses | 3 | (83) | 194 | 49 |
Ending Balance | 300 | 280 | 300 | 280 | 247
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 300 | 280 | 300 | 280 |
Loans and Leases Receivable, Net of Deferred Income | (13,368) | (13,897) | (13,368) | (13,897) | (13,928)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 13,368 | 13,897 | 13,368 | 13,897 |
Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 1,409 |  | 2,563 |  |
Charge-offs | (399) |  | (1,023) |  |
Recoveries | 35 |  | 90 |  |
Provision for credit losses | 12 |  | (573) |  |
Ending Balance | 1,057 |  | 1,057 |  | 2,563
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 1,057 |  | 1,057 |  |
Loans and Leases Receivable, Net of Deferred Income | (99,892) |  | (99,892) |  |
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 99,892 |  | 99,892 |  |
Commercial, financial, agricultural and other [Member] | Equipment Finance |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 272 |  | 0 |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Provision for credit losses | 297 |  | 569 |  |
Ending Balance | 569 |  | 569 |  | 0
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 569 |  | 569 |  |
Loans and Leases Receivable, Net of Deferred Income | (43,777) |  | (43,777) |  |
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 43,777 |  | 43,777 |  |
Residential real estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 17,747 | 12,933 | 12,625 | 14,358 |
Charge-offs | (119) | (11) | (263) | (130) |
Recoveries | 83 | 98 | 143 | 309 |
Provision for credit losses | 1,592 | (215) | 6,798 | (1,732) |
Ending Balance | 19,303 | 12,805 | 19,303 | 12,805 | 12,625
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 19,303 | 12,805 | 19,303 | 12,805 |
Loans and Leases Receivable, Net of Deferred Income | (2,153,904) | (1,875,375) | (2,153,904) | (1,875,375) | (1,920,250)
Ending balance: individually evaluated for impaired | 0 | 254 | 0 | 254 |
Ending balance: collectively evaluated for impaired | 2,153,904 | 1,875,121 | 2,153,904 | 1,875,121 |
Residential real estate [Member] | Senior Lien |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 11,860 | 7,394 | 7,459 | 7,919 |
Charge-offs | (79) | 0 | (124) | (36) |
Recoveries | 67 | 24 | 112 | 206 |
Provision for credit losses | 1,161 | 39 | 5,562 | (632) |
Ending Balance | 13,009 | 7,457 | 13,009 | 7,457 | 7,459
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 13,009 | 7,457 | 13,009 | 7,457 |
Loans and Leases Receivable, Net of Deferred Income | (1,510,570) | (1,254,142) | (1,510,570) | (1,254,142) | (1,299,534)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 1,510,570 | 1,254,142 | 1,510,570 | 1,254,142 |
Residential real estate [Member] | Junior Lien |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 5,887 | 5,539 | 5,166 | 6,439 |
Charge-offs | (40) | (11) | (139) | (94) |
Recoveries | 16 | 74 | 31 | 103 |
Provision for credit losses | 431 | (254) | 1,236 | (1,100) |
Ending Balance | 6,294 | 5,348 | 6,294 | 5,348 | 5,166
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 6,294 | 5,348 | 6,294 | 5,348 |
Loans and Leases Receivable, Net of Deferred Income | (643,334) | (621,233) | (643,334) | (621,233) | (620,716)
Ending balance: individually evaluated for impaired | 0 | 254 | 0 | 254 |
Ending balance: collectively evaluated for impaired | 643,334 | 620,979 | 643,334 | 620,979 |
Commercial Real Estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 31,387 | 35,795 | 33,376 | 41,953 |
Charge-offs | (1,335) | (102) | (1,887) | (1,659) |
Recoveries | 332 | 90 | 351 | 130 |
Provision for credit losses | (2,485) | (1,143) | (3,941) | (5,784) |
Ending Balance | 27,899 | 34,640 | 27,899 | 34,640 | 33,376
Ending balance: individually evaluated for impaired | 154 | 501 | 154 | 501 |
Ending balance: collectively evaluated for impaired | 27,745 | 34,139 | 27,745 | 34,139 |
Loans and Leases Receivable, Net of Deferred Income | (2,393,276) | (2,231,890) | (2,393,276) | (2,231,890) | (2,251,097)
Ending balance: individually evaluated for impaired | 20,775 | 20,333 | 20,775 | 20,333 |
Ending balance: collectively evaluated for impaired | 2,372,501 | 2,211,557 | 2,372,501 | 2,211,557 |
Commercial Real Estate [Member] | Multifamily |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 3,555 | 4,379 | 3,561 | 6,240 |
Charge-offs | 0 | 0 | (411) | (1) |
Recoveries | 1 | 0 | 1 | 0 |
Provision for credit losses | 868 | (548) | 1,273 | (2,408) |
Ending Balance | 4,424 | 3,831 | 4,424 | 3,831 | 3,561
Ending balance: individually evaluated for impaired | 0 | 103 | 0 | 103 |
Ending balance: collectively evaluated for impaired | 4,424 | 3,728 | 4,424 | 3,728 |
Loans and Leases Receivable, Net of Deferred Income | (404,328) | (405,720) | (404,328) | (405,720) | (385,432)
Ending balance: individually evaluated for impaired | 0 | 435 | 0 | 435 |
Ending balance: collectively evaluated for impaired | 404,328 | 405,285 | 404,328 | 405,285 |
Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 20,953 | 26,911 | 24,838 | 28,414 |
Charge-offs | (1,095) | 0 | (1,236) | (1,556) |
Recoveries | 330 | 80 | 340 | 120 |
Provision for credit losses | (4,186) | (893) | (7,940) | (880) |
Ending Balance | 16,002 | 26,098 | 16,002 | 26,098 | 24,838
Ending balance: individually evaluated for impaired | 154 | 338 | 154 | 338 |
Ending balance: collectively evaluated for impaired | 15,848 | 25,760 | 15,848 | 25,760 |
Loans and Leases Receivable, Net of Deferred Income | (1,516,255) | (1,442,845) | (1,516,255) | (1,442,845) | (1,465,247)
Ending balance: individually evaluated for impaired | 20,101 | 18,314 | 20,101 | 18,314 |
Ending balance: collectively evaluated for impaired | 1,496,154 | 1,424,531 | 1,496,154 | 1,424,531 |
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 6,879 | 4,505 | 4,977 | 7,299 |
Charge-offs | (240) | (102) | (240) | (102) |
Recoveries | 1 | 10 | 10 | 10 |
Provision for credit losses | 833 | 298 | 2,726 | (2,496) |
Ending Balance | 7,473 | 4,711 | 7,473 | 4,711 | 4,977
Ending balance: individually evaluated for impaired | 0 | 60 | 0 | 60 |
Ending balance: collectively evaluated for impaired | 7,473 | 4,651 | 7,473 | 4,651 |
Loans and Leases Receivable, Net of Deferred Income | (472,693) | (383,325) | (472,693) | (383,325) | (400,418)
Ending balance: individually evaluated for impaired | 674 | 1,584 | 674 | 1,584 |
Ending balance: collectively evaluated for impaired | 472,019 | 381,741 | 472,019 | 381,741 |
Loans to individuals [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 16,951 | 22,559 | 24,208 | 19,845 |
Charge-offs | (1,064) | (727) | (3,113) | (3,199) |
Recoveries | 331 | 335 | 1,160 | 1,163 |
Provision for credit losses | 3,290 | 2,378 | (2,747) | 6,736 |
Ending Balance | 19,508 | 24,545 | 19,508 | 24,545 | 24,208
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 19,508 | 24,545 | 19,508 | 24,545 |
Loans and Leases Receivable, Net of Deferred Income | (1,209,841) | (976,708) | (1,209,841) | (976,708) | (999,975)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 1,209,841 | 976,708 | 1,209,841 | 976,708 |
Loans to individuals [Member] | Automobiles |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 14,563 | 19,298 | 21,392 | 16,133 |
Charge-offs | (538) | (331) | (1,515) | (1,399) |
Recoveries | 156 | 251 | 699 | 826 |
Provision for credit losses | 2,979 | 1,984 | (3,416) | 5,642 |
Ending Balance | 17,160 | 21,202 | 17,160 | 21,202 | 21,392
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 17,160 | 21,202 | 17,160 | 21,202 |
Loans and Leases Receivable, Net of Deferred Income | (1,120,838) | (886,367) | (1,120,838) | (886,367) | (901,280)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 1,120,838 | 886,367 | 1,120,838 | 886,367 |
Loans to individuals [Member] | Consumer Credit Cards |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 312 | 528 | 496 | 635 |
Charge-offs | (182) | (125) | (415) | (372) |
Recoveries | 15 | 9 | 53 | 51 |
Provision for credit losses | 244 | 84 | 255 | 182 |
Ending Balance | 389 | 496 | 389 | 496 | 496
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 389 | 496 | 389 | 496 |
Loans and Leases Receivable, Net of Deferred Income | (10,274) | (10,617) | (10,274) | (10,617) | (11,151)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 10,274 | 10,617 | 10,274 | 10,617 |
Loans to individuals [Member] | Other Consumer Loans |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 2,076 | 2,733 | 2,320 | 3,077 |
Charge-offs | (344) | (271) | (1,183) | (1,428) |
Recoveries | 160 | 75 | 408 | 286 |
Provision for credit losses | 67 | 310 | 414 | 912 |
Ending Balance | 1,959 | 2,847 | 1,959 | 2,847 | 2,320
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 1,959 | 2,847 | 1,959 | 2,847 |
Loans and Leases Receivable, Net of Deferred Income | (78,729) | (79,724) | (78,729) | (79,724) | (87,544)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 78,729 | 79,724 | 78,729 | 79,724 |
Real estate construction [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 5,529 | 4,285 | 4,220 | 7,966 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 9 | 0 | 9 | 135 |
Provision for credit losses | 1,373 | 48 | 2,682 | (3,768) |
Ending Balance | 6,911 | 4,333 | 6,911 | 4,333 | 4,220
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 6,911 | 4,333 | 6,911 | 4,333 |
Loans and Leases Receivable, Net of Deferred Income | (422,690) | (424,016) | (422,690) | (424,016) | (494,456)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 422,690 | $ 424,016 | 422,690 | $ 424,016 |
Real estate construction [Member] | Construction Residential |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 1,929 |  | 942 |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Provision for credit losses | (41) |  | 946 |  |
Ending Balance | 1,888 |  | 1,888 |  | 942
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 1,888 |  | 1,888 |  |
Loans and Leases Receivable, Net of Deferred Income | (96,151) |  | (96,151) |  |
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 96,151 |  | 96,151 |  |
Real estate construction [Member] | Construction Other |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 3,600 |  | 3,278 |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 9 |  | 9 |  |
Provision for credit losses | 1,414 |  | 1,736 |  |
Ending Balance | 5,023 |  | 5,023 |  | $ 3,278
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 5,023 |  | 5,023 |  |
Loans and Leases Receivable, Net of Deferred Income | (326,539) |  | (326,539) |  |
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | $ 326,539 |  | $ 326,539 |  |

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- 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 https://asc.fasb.org/extlink&oid=123577603&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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) + Details
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