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Allowance for Credit Losses, Credit Quality and Other - Schedule of Allowance for Credit Losses (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | $ 288,234 | $ 289,669 | $ 236,714
Allowance for credit losses on PCD loans - Happy acquisition |  |  | 16,816
Loans charged off | (63,036) | (16,055) | (17,267)
Recoveries of loans previously charged off | 2,282 | 2,670 | 3,236
Net loans (charged off) recovered | (60,754) | (13,385) | (14,031)
Provision for credit loss - acquired loans |  |  | 45,170
Provision for credit loss - loans | 48,400 | 11,950 | 5,000
Ending balance | 275,880 | 288,234 | 289,669
Residential Real Estate |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 55,860 | 50,963 | 48,458
Allowance for credit losses on PCD loans - Happy acquisition |  |  | 980
Loans charged off | (7,067) | (269) | (446)
Recoveries of loans previously charged off | 180 | 329 | 119
Net loans (charged off) recovered | (6,887) | 60 | (327)
Provision for credit loss - acquired loans |  |  | 7,380
Provision for credit loss - loans | 1,862 | 4,837 | (5,528)
Ending balance | 50,835 | 55,860 | 50,963
Commercial & Industrial |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 92,810 | 89,354 | 53,062
Allowance for credit losses on PCD loans - Happy acquisition |  |  | 5,596
Loans charged off | (11,089) | (9,157) | (9,773)
Recoveries of loans previously charged off | 628 | 583 | 780
Net loans (charged off) recovered | (10,461) | (8,574) | (8,993)
Provision for credit loss - acquired loans |  |  | 11,303
Provision for credit loss - loans | (32,728) | 12,030 | 28,386
Ending balance | 49,621 | 92,810 | 89,354
Consumer & Other |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 27,052 | 23,261 | 19,561
Allowance for credit losses on PCD loans - Happy acquisition |  |  | 7
Loans charged off | (5,311) | (4,031) | (7,047)
Recoveries of loans previously charged off | 1,194 | 1,112 | 965
Net loans (charged off) recovered | (4,117) | (2,919) | (6,082)
Provision for credit loss - acquired loans |  |  | 571
Provision for credit loss - loans | 8,903 | 6,710 | 9,204
Ending balance | 31,838 | 27,052 | 23,261
Construction/ Land Development | Commercial real estate loans |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 33,877 | 32,243 | 28,415
Allowance for credit losses on PCD loans - Happy acquisition |  |  | 950
Loans charged off | (1,437) | (263) | (1)
Recoveries of loans previously charged off | 221 | 113 | 405
Net loans (charged off) recovered | (1,216) | (150) | 404
Provision for credit loss - acquired loans |  |  | 7,205
Provision for credit loss - loans | 19,610 | 1,784 | (4,731)
Ending balance | 52,271 | 33,877 | 32,243
Other Commercial Real Estate | Commercial real estate loans |  |  |
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward] |  |  |
Beginning balance | 78,635 | 93,848 | 87,218
Allowance for credit losses on PCD loans - Happy acquisition |  |  | 9,283
Loans charged off | (38,132) | (2,335) | 0
Recoveries of loans previously charged off | 59 | 533 | 967
Net loans (charged off) recovered | (38,073) | (1,802) | 967
Provision for credit loss - acquired loans |  |  | 18,711
Provision for credit loss - loans | 50,753 | (13,411) | (22,331)
Ending balance | $ 91,315 | $ 78,635 | $ 93,848

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- Definition Financing receivable allowance for credit losses recoveries of loans previously charged off. + References No definition available. + Details
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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 + Details
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