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Loans and Allowance for Credit Losses - Allowance for Credit Losses (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | $ 91,188 | $ 96,763 | $ 92,522 | $ 101,309 |
Charge-offs | (2,106) | (4,839) | (3,729) | (8,604) |
Recoveries | 578 | 912 | 1,067 | 1,407 |
Provision for credit losses | 3,943 | 4,202 | 3,743 | 2,926 |
Ending Balance | 93,603 | 97,038 | 93,603 | 97,038 | $ 92,522
Ending balance: individually evaluated for impaired | 360 | 2,946 | 360 | 2,946 |
Ending balance: collectively evaluated for impaired | 93,243 | 94,092 | 93,243 | 94,092 |
Loans and Leases Receivable, Net of Deferred Income | (7,119,754) | (6,740,535) | (7,119,754) | (6,740,535) | (6,839,230)
Ending balance: individually evaluated for impaired | 24,795 | 41,328 | 24,795 | 41,328 |
Ending balance: collectively evaluated for impaired | 7,094,959 | 6,699,207 | 7,094,959 | 6,699,207 |
Provision for credit losses | 4,099 | 5,413 | 6,063 | 1,023 |
Commercial, financial, agricultural and other [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 20,721 | 21,801 | 18,093 | 17,187 |
Charge-offs | (509) | (3,887) | (984) | (4,456) |
Recoveries | 79 | 103 | 159 | 193 |
Provision for credit losses | 1,698 | 3,449 | 4,721 | 8,542 |
Ending Balance | 21,989 | 21,466 | 21,989 | 21,466 | 18,093
Ending balance: individually evaluated for impaired | 0 | 2,358 | 0 | 2,358 |
Ending balance: collectively evaluated for impaired | 21,989 | 19,108 | 21,989 | 19,108 |
Loans and Leases Receivable, Net of Deferred Income | (1,170,583) | (1,374,177) | (1,170,583) | (1,374,177) | (1,173,452)
Ending balance: individually evaluated for impaired | 2,582 | 13,688 | 2,582 | 13,688 |
Ending balance: collectively evaluated for impaired | 1,168,001 | 1,360,489 | 1,168,001 | 1,360,489 |
Commercial, financial, agricultural and other [Member] | Time and Demand Loans |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 18,907 | 21,427 | 15,283 | 16,838 |
Charge-offs | (139) | (3,878) | (283) | (4,338) |
Recoveries | 25 | 99 | 78 | 188 |
Provision for credit losses | 1,128 | 3,450 | 4,843 | 8,410 |
Ending Balance | 19,921 | 21,098 | 19,921 | 21,098 | 15,283
Ending balance: individually evaluated for impaired | 0 | 2,358 | 0 | 2,358 |
Ending balance: collectively evaluated for impaired | 19,921 | 18,740 | 19,921 | 18,740 |
Loans and Leases Receivable, Net of Deferred Income | (1,031,930) | (1,360,065) | (1,031,930) | (1,360,065) | (1,159,524)
Ending balance: individually evaluated for impaired | 2,582 | 13,688 | 2,582 | 13,688 |
Ending balance: collectively evaluated for impaired | 1,029,348 | 1,346,377 | 1,029,348 | 1,346,377 |
Commercial, financial, agricultural and other [Member] | Commercial Credit Cards |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 342 | 374 | 247 | 349 |
Charge-offs | (58) | (9) | (77) | (118) |
Recoveries | 25 | 4 | 26 | 5 |
Provision for credit losses | 78 | (1) | 191 | 132 |
Ending Balance | 387 | 368 | 387 | 368 | 247
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 387 | 368 | 387 | 368 |
Loans and Leases Receivable, Net of Deferred Income | (16,329) | (14,112) | (16,329) | (14,112) | (13,928)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 16,329 | 14,112 | 16,329 | 14,112 |
Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 1,441 |  | 2,563 |  |
Charge-offs | (312) |  | (624) |  |
Recoveries | 29 |  | 55 |  |
Provision for credit losses | 251 |  | (585) |  |
Ending Balance | 1,409 |  | 1,409 |  | 2,563
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 1,409 |  | 1,409 |  |
Loans and Leases Receivable, Net of Deferred Income | (101,262) |  | (101,262) |  |
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 101,262 |  | 101,262 |  |
Commercial, financial, agricultural and other [Member] | Equipment Finance |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 31 |  | 0 |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Provision for credit losses | 241 |  | 272 |  |
Ending Balance | 272 |  | 272 |  | 0
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 272 |  | 272 |  |
Loans and Leases Receivable, Net of Deferred Income | (21,062) |  | (21,062) |  |
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 21,062 |  | 21,062 |  |
Residential real estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 16,728 | 12,829 | 12,625 | 14,358 |
Charge-offs | (5) | (14) | (144) | (119) |
Recoveries | 31 | 174 | 60 | 211 |
Provision for credit losses | 993 | (56) | 5,206 | (1,517) |
Ending Balance | 17,747 | 12,933 | 17,747 | 12,933 | 12,625
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 17,747 | 12,933 | 17,747 | 12,933 |
Loans and Leases Receivable, Net of Deferred Income | (2,100,201) | (1,828,783) | (2,100,201) | (1,828,783) | (1,920,250)
Ending balance: individually evaluated for impaired | 253 | 541 | 253 | 541 |
Ending balance: collectively evaluated for impaired | 2,099,948 | 1,828,242 | 2,099,948 | 1,828,242 |
Residential real estate [Member] | Senior Lien |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 11,125 | 7,227 | 7,459 | 7,919 |
Charge-offs | (5) | (13) | (45) | (36) |
Recoveries | 22 | 159 | 45 | 182 |
Provision for credit losses | 718 | 21 | 4,401 | (671) |
Ending Balance | 11,860 | 7,394 | 11,860 | 7,394 | 7,459
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 11,860 | 7,394 | 11,860 | 7,394 |
Loans and Leases Receivable, Net of Deferred Income | (1,459,861) | (1,218,300) | (1,459,861) | (1,218,300) | (1,299,534)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 1,459,861 | 1,218,300 | 1,459,861 | 1,218,300 |
Residential real estate [Member] | Junior Lien |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 5,603 | 5,602 | 5,166 | 6,439 |
Charge-offs | 0 | (1) | (99) | (83) |
Recoveries | 9 | 15 | 15 | 29 |
Provision for credit losses | 275 | (77) | 805 | (846) |
Ending Balance | 5,887 | 5,539 | 5,887 | 5,539 | 5,166
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 5,887 | 5,539 | 5,887 | 5,539 |
Loans and Leases Receivable, Net of Deferred Income | (640,340) | (610,483) | (640,340) | (610,483) | (620,716)
Ending balance: individually evaluated for impaired | 253 | 541 | 253 | 541 |
Ending balance: collectively evaluated for impaired | 640,087 | 609,942 | 640,087 | 609,942 |
Commercial Real Estate [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 33,704 | 37,668 | 33,376 | 41,953 |
Charge-offs | (552) | (7) | (552) | (1,557) |
Recoveries | 5 | 1 | 19 | 40 |
Provision for credit losses | (1,770) | (1,867) | (1,456) | (4,641) |
Ending Balance | 31,387 | 35,795 | 31,387 | 35,795 | 33,376
Ending balance: individually evaluated for impaired | 360 | 588 | 360 | 588 |
Ending balance: collectively evaluated for impaired | 31,027 | 35,207 | 31,027 | 35,207 |
Loans and Leases Receivable, Net of Deferred Income | (2,319,094) | (2,205,758) | (2,319,094) | (2,205,758) | (2,251,097)
Ending balance: individually evaluated for impaired | 21,960 | 27,099 | 21,960 | 27,099 |
Ending balance: collectively evaluated for impaired | 2,297,134 | 2,178,659 | 2,297,134 | 2,178,659 |
Commercial Real Estate [Member] | Multifamily |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 3,610 | 4,251 | 3,561 | 6,240 |
Charge-offs | (411) | 0 | (411) | (1) |
Recoveries | 0 | 0 | 0 | 0 |
Provision for credit losses | 356 | 128 | 405 | (1,860) |
Ending Balance | 3,555 | 4,379 | 3,555 | 4,379 | 3,561
Ending balance: individually evaluated for impaired | 0 | 113 | 0 | 113 |
Ending balance: collectively evaluated for impaired | 3,555 | 4,266 | 3,555 | 4,266 |
Loans and Leases Receivable, Net of Deferred Income | (360,335) | (385,905) | (360,335) | (385,905) | (385,432)
Ending balance: individually evaluated for impaired | 0 | 445 | 0 | 445 |
Ending balance: collectively evaluated for impaired | 360,335 | 385,460 | 360,335 | 385,460 |
Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 23,267 | 27,889 | 24,838 | 28,414 |
Charge-offs | (141) | (7) | (141) | (1,556) |
Recoveries | 5 | 1 | 10 | 40 |
Provision for credit losses | (2,178) | (972) | (3,754) | 13 |
Ending Balance | 20,953 | 26,911 | 20,953 | 26,911 | 24,838
Ending balance: individually evaluated for impaired | 360 | 475 | 360 | 475 |
Ending balance: collectively evaluated for impaired | 20,593 | 26,436 | 20,593 | 26,436 |
Loans and Leases Receivable, Net of Deferred Income | (1,510,804) | (1,429,192) | (1,510,804) | (1,429,192) | (1,465,247)
Ending balance: individually evaluated for impaired | 21,044 | 24,624 | 21,044 | 24,624 |
Ending balance: collectively evaluated for impaired | 1,489,760 | 1,404,568 | 1,489,760 | 1,404,568 |
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 6,827 | 5,528 | 4,977 | 7,299 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 0 | 9 | 0 |
Provision for credit losses | 52 | (1,023) | 1,893 | (2,794) |
Ending Balance | 6,879 | 4,505 | 6,879 | 4,505 | 4,977
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 6,879 | 4,505 | 6,879 | 4,505 |
Loans and Leases Receivable, Net of Deferred Income | (447,955) | (390,661) | (447,955) | (390,661) | (400,418)
Ending balance: individually evaluated for impaired | 916 | 2,030 | 916 | 2,030 |
Ending balance: collectively evaluated for impaired | 447,039 | 388,631 | 447,039 | 388,631 |
Loans to individuals [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 15,105 | 20,444 | 24,208 | 19,845 |
Charge-offs | (1,040) | (931) | (2,049) | (2,472) |
Recoveries | 463 | 499 | 829 | 828 |
Provision for credit losses | 2,423 | 2,547 | (6,037) | 4,358 |
Ending Balance | 16,951 | 22,559 | 16,951 | 22,559 | 24,208
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 16,951 | 22,559 | 16,951 | 22,559 |
Loans and Leases Receivable, Net of Deferred Income | (1,136,884) | (917,001) | (1,136,884) | (917,001) | (999,975)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 1,136,884 | 917,001 | 1,136,884 | 917,001 |
Loans to individuals [Member] | Automobiles |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 12,635 | 16,888 | 21,392 | 16,133 |
Charge-offs | (425) | (388) | (977) | (1,068) |
Recoveries | 288 | 394 | 543 | 575 |
Provision for credit losses | 2,065 | 2,404 | (6,395) | 3,658 |
Ending Balance | 14,563 | 19,298 | 14,563 | 19,298 | 21,392
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 14,563 | 19,298 | 14,563 | 19,298 |
Loans and Leases Receivable, Net of Deferred Income | (1,047,104) | (829,150) | (1,047,104) | (829,150) | (901,280)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 1,047,104 | 829,150 | 1,047,104 | 829,150 |
Loans to individuals [Member] | Consumer Credit Cards |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 382 | 689 | 496 | 635 |
Charge-offs | (124) | (79) | (233) | (247) |
Recoveries | 14 | 25 | 38 | 42 |
Provision for credit losses | 40 | (107) | 11 | 98 |
Ending Balance | 312 | 528 | 312 | 528 | 496
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 312 | 528 | 312 | 528 |
Loans and Leases Receivable, Net of Deferred Income | (8,717) | (10,834) | (8,717) | (10,834) | (11,151)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 8,717 | 10,834 | 8,717 | 10,834 |
Loans to individuals [Member] | Other Consumer Loans |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 2,088 | 2,867 | 2,320 | 3,077 |
Charge-offs | (491) | (464) | (839) | (1,157) |
Recoveries | 161 | 80 | 248 | 211 |
Provision for credit losses | 318 | 250 | 347 | 602 |
Ending Balance | 2,076 | 2,733 | 2,076 | 2,733 | 2,320
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 2,076 | 2,733 | 2,076 | 2,733 |
Loans and Leases Receivable, Net of Deferred Income | (81,063) | (77,017) | (81,063) | (77,017) | (87,544)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 81,063 | 77,017 | 81,063 | 77,017 |
Real estate construction [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 4,930 | 4,021 | 4,220 | 7,966 |
Charge-offs | 0 | 0 | 0 | 0 |
Recoveries | 0 | 135 | 0 | 135 |
Provision for credit losses | 599 | 129 | 1,309 | (3,816) |
Ending Balance | 5,529 | 4,285 | 5,529 | 4,285 | 4,220
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 5,529 | 4,285 | 5,529 | 4,285 |
Loans and Leases Receivable, Net of Deferred Income | (392,992) | (414,816) | (392,992) | (414,816) | (494,456)
Ending balance: individually evaluated for impaired | 0 | 0 | 0 | 0 |
Ending balance: collectively evaluated for impaired | 392,992 | $ 414,816 | 392,992 | $ 414,816 |
Real estate construction [Member] | Construction Residential |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 1,755 |  | 942 |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Provision for credit losses | 174 |  | 987 |  |
Ending Balance | 1,929 |  | 1,929 |  | 942
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 1,929 |  | 1,929 |  |
Loans and Leases Receivable, Net of Deferred Income | (100,592) |  | (100,592) |  |
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 100,592 |  | 100,592 |  |
Real estate construction [Member] | Construction Other |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |  |
Beginning Balance | 3,175 |  | 3,278 |  |
Charge-offs | 0 |  | 0 |  |
Recoveries | 0 |  | 0 |  |
Provision for credit losses | 425 |  | 322 |  |
Ending Balance | 3,600 |  | 3,600 |  | $ 3,278
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | 3,600 |  | 3,600 |  |
Loans and Leases Receivable, Net of Deferred Income | (292,400) |  | (292,400) |  |
Ending balance: individually evaluated for impaired | 0 |  | 0 |  |
Ending balance: collectively evaluated for impaired | $ 292,400 |  | $ 292,400 |  |

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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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