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Loans and Allowance for Credit Losses - Allowance for Credit Losses on Loans by Category of Loan (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | $ 349,101 | $ 330,219 | $ 351,805 | $ 332,362
Initial allowance on loans purchased with credit deterioration |  | 26,078 |  | 26,078
Provision for credit losses | 0 | 7,923 |  | 7,923
Charge-offs | (4,222) | (6,117) | (8,165) | (9,718)
Recoveries | 1,205 | 1,749 | 2,444 | 3,207
Net (charge-offs) recoveries | (3,017) | (4,368) | (5,721) | (6,511)
Allowance for credit losses on loans, ending balance | 346,084 | 359,852 | 346,084 | 359,852
Real Estate [Member] | Construction, Land Development and Other Land Loans [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 80,580 | 82,158 | 77,984 | 87,775
Initial allowance on loans purchased with credit deterioration |  | 942 |  | 942
Provision for credit losses | (2,765) | (6,215) | (325) | (11,834)
Charge-offs | (82) | (109) | (82) | (109)
Recoveries | 85 |  | 241 | 2
Net (charge-offs) recoveries | 3 | (109) | 159 | (107)
Allowance for credit losses on loans, ending balance | 77,818 | 76,776 | 77,818 | 76,776
Real Estate [Member] | Agriculture [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 26,097 | 12,627 | 27,693 | 11,380
Initial allowance on loans purchased with credit deterioration |  | 14,309 |  | 14,309
Provision for credit losses | 737 | 2,757 | (859) | 4,027
Charge-offs | (37) | (400) | (37) | (522)
Recoveries | 51 | 186 | 51 | 285
Net (charge-offs) recoveries | 14 | (214) | 14 | (237)
Allowance for credit losses on loans, ending balance | 26,848 | 29,479 | 26,848 | 29,479
Real Estate [Member] | 1-4 Family [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 83,895 | 79,664 | 80,735 | 77,652
Initial allowance on loans purchased with credit deterioration |  | 344 |  | 344
Provision for credit losses | (1,448) | 1,106 | 2,763 | 3,575
Charge-offs | (410) | (433) | (1,468) | (894)
Recoveries | 68 | 8 | 75 | 12
Net (charge-offs) recoveries | (342) | (425) | (1,393) | (882)
Allowance for credit losses on loans, ending balance | 82,105 | 80,689 | 82,105 | 80,689
Real Estate [Member] | Commercial Real Estate (Includes Multi-Family Residential) [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 90,307 | 87,213 | 92,147 | 88,664
Initial allowance on loans purchased with credit deterioration |  | 4,306 |  | 4,306
Provision for credit losses | (1,131) | 3,828 | (2,793) | 2,360
Charge-offs | (112) | (511) | (499) | (511)
Recoveries | 57 | 892 | 266 | 909
Net (charge-offs) recoveries | (55) | 381 | (233) | 398
Allowance for credit losses on loans, ending balance | 89,121 | 95,728 | 89,121 | 95,728
Commercial and Industrial [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 60,174 | 61,616 | 65,500 | 59,832
Initial allowance on loans purchased with credit deterioration |  | 6,176 |  | 6,176
Provision for credit losses | 3,126 | 5,097 | (1,870) | 7,164
Charge-offs | (1,636) | (3,176) | (2,577) | (4,536)
Recoveries | 592 | 399 | 1,203 | 1,476
Net (charge-offs) recoveries | (1,044) | (2,777) | (1,374) | (3,060)
Allowance for credit losses on loans, ending balance | 62,256 | 70,112 | 62,256 | 70,112
Consumer and Other [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 8,048 | 6,941 | 7,746 | 7,059
Initial allowance on loans purchased with credit deterioration |  | 1 |  | 1
Provision for credit losses | 1,481 | 1,350 | 3,084 | 2,631
Charge-offs | (1,945) | (1,488) | (3,502) | (3,146)
Recoveries | 352 | 264 | 608 | 523
Net (charge-offs) recoveries | (1,593) | (1,224) | (2,894) | (2,623)
Allowance for credit losses on loans, ending balance | $ 7,936 | $ 7,068 | $ 7,936 | $ 7,068

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