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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, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | $ 330,219 | $ 282,191 | $ 332,362 | $ 281,576
Initial allowance on loans purchased with credit deterioration | 26,078 | 67,099 | 26,078 | 67,099
Provision for credit losses | 7,923 | 11,984 | 7,923 | 11,984
Charge-offs | (6,117) | (16,833) | (9,718) | (19,024)
Recoveries | 1,749 | 768 | 3,207 | 3,574
Net (charge-offs) recoveries | (4,368) | (16,065) | (6,511) | (15,450)
Allowance for credit losses on loans, ending balance | 359,852 | 345,209 | 359,852 | 345,209
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 | 82,158 | 80,561 | 87,775 | 78,853
Initial allowance on loans purchased with credit deterioration | 942 | 15,237 | 942 | 15,237
Provision for credit losses | (6,215) | (3,890) | (11,834) | (2,195)
Charge-offs | (109) | (77) | (109) | (77)
Recoveries |  | 27 | 2 | 40
Net (charge-offs) recoveries | (109) | (50) | (107) | (37)
Allowance for credit losses on loans, ending balance | 76,776 | 91,858 | 76,776 | 91,858
Real Estate [Member] | Agriculture [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 12,627 | 8,061 | 11,380 | 7,699
Initial allowance on loans purchased with credit deterioration | 14,309 | 2,914 | 14,309 | 2,914
Provision for credit losses | 2,757 | 201 | 4,027 | 557
Charge-offs | (400) | (113) | (522) | (113)
Recoveries | 186 | 191 | 285 | 197
Net (charge-offs) recoveries | (214) | 78 | (237) | 84
Allowance for credit losses on loans, ending balance | 29,479 | 11,254 | 29,479 | 11,254
Real Estate [Member] | 1-4 Family [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 79,664 | 62,538 | 77,652 | 60,795
Initial allowance on loans purchased with credit deterioration | 344 | 1,590 | 344 | 1,590
Provision for credit losses | 1,106 | 3,524 | 3,575 | 5,127
Charge-offs | (433) | (36) | (894) | (101)
Recoveries | 8 | 106 | 12 | 311
Net (charge-offs) recoveries | (425) | 70 | (882) | 210
Allowance for credit losses on loans, ending balance | 80,689 | 67,722 | 80,689 | 67,722
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 | 87,213 | 67,972 | 88,664 | 66,272
Initial allowance on loans purchased with credit deterioration | 4,306 | 21,002 | 4,306 | 21,002
Provision for credit losses | 3,828 | 12,748 | 2,360 | 14,447
Charge-offs | (511) | (14,975) | (511) | (14,975)
Recoveries | 892 | 18 | 909 | 19
Net (charge-offs) recoveries | 381 | (14,957) | 398 | (14,956)
Allowance for credit losses on loans, ending balance | 95,728 | 86,765 | 95,728 | 86,765
Commercial and Industrial [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 61,616 | 57,296 | 59,832 | 62,319
Initial allowance on loans purchased with credit deterioration | 6,176 | 26,332 | 6,176 | 26,332
Provision for credit losses | 5,097 | (1,498) | 7,164 | (7,993)
Charge-offs | (3,176) | (341) | (4,536) | (1,242)
Recoveries | 399 | 181 | 1,476 | 2,554
Net (charge-offs) recoveries | (2,777) | (160) | (3,060) | 1,312
Allowance for credit losses on loans, ending balance | 70,112 | 81,970 | 70,112 | 81,970
Consumer and Other [Member] |  |  |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |  |  |
Allowance for credit losses on loans, beginning balance | 6,941 | 5,763 | 7,059 | 5,638
Initial allowance on loans purchased with credit deterioration | 1 | 24 | 1 | 24
Provision for credit losses | 1,350 | 899 | 2,631 | 2,041
Charge-offs | (1,488) | (1,291) | (3,146) | (2,516)
Recoveries | 264 | 245 | 523 | 453
Net (charge-offs) recoveries | (1,224) | (1,046) | (2,623) | (2,063)
Allowance for credit losses on loans, ending balance | $ 7,068 | $ 5,640 | $ 7,068 | $ 5,640

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