v3.25.2
LHFI and ACL, LHFI - Change in Allowance for Loan Losses (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 [Roll Forward]        
Balance at beginning of period $ 167,010 $ 142,998 $ 160,270 $ 139,367
Loans charged-off (6,380) (5,120) (10,081) (11,444)
Loans charged-off (6,380) (13,753) (10,081) (20,077)
Recoveries 2,261 2,111 4,577 4,358
Net (charge-offs) recoveries (4,119) (11,642) (5,504) (15,719)
PCL, LHFI 5,346 23,329 13,471 31,037
Balance at end of period 168,237 154,685 168,237 154,685
Loans Held for Investment [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
PCL, LHFI 5,346 14,696 13,471 22,404
1-4 Family Mortgage Loans [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Loans charged-off   (8,633)   (8,633)
PCL, LHFI 0 8,633 0 8,633
Commercial and Industrial Loans [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 25,396 27,930 27,020 26,638
Loans charged-off (1,549) (191) (2,430) (775)
Recoveries 264 272 499 470
PCL, LHFI 4,354 724 3,376 2,402
Balance at end of period 28,465 28,735 28,465 28,735
Consumer Loans [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 5,238 5,523 5,141 5,794
Loans charged-off (2,121) (2,184) (4,325) (4,932)
Recoveries 1,458 1,447 3,046 2,952
PCL, LHFI 536 859 1,249 1,831
Balance at end of period 5,111 5,645 5,111 5,645
State and Other Political Subdivision Loans [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 1,605 638 1,250 646
Loans charged-off 0 0 0 0
Recoveries 0 0 0 0
PCL, LHFI (58) (13) 297 (21)
Balance at end of period 1,547 625 1,547 625
Other Commercial Loans and Leases [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 6,530 6,056 6,247 7,072
Loans charged-off (16) 0 (84) (53)
Recoveries 61 23 93 52
PCL, LHFI 876 410 1,195 (582)
Balance at end of period 7,451 6,489 7,451 6,489
Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 6,982 5,743 6,452 17,192
Loans charged-off 0 0 0 (24)
Recoveries 194 7 196 8
PCL, LHFI 173 (649) 701 (12,075)
Balance at end of period 7,349 5,101 7,349 5,101
Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 12,476 10,554 11,347 12,942
Loans charged-off (139) (104) (307) (180)
Recoveries 123 63 222 513
PCL, LHFI 205 (140) 1,403 (2,902)
Balance at end of period 12,665 10,373 12,665 10,373
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 39,973 33,292 37,896 24,043
Loans charged-off (2,005) 0 (2,005) (2,428)
Recoveries 0 17 0 26
PCL, LHFI (2,951) 7,827 (874) 19,495
Balance at end of period 35,017 41,136 35,017 41,136
Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 23,348 9,251 19,491 4,488
Loans charged-off 0 0 0 0
Recoveries 0 0 77 0
PCL, LHFI 157 2,786 3,937 7,549
Balance at end of period 23,505 12,037 23,505 12,037
Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 35,602 31,946 32,129 34,794
Loans charged-off (550) (8,780) (930) (9,191)
Recoveries 160 27 441 65
PCL, LHFI 3,773 7,454 7,345 4,979
Balance at end of period 38,985 30,647 38,985 30,647
Other Loans Secured by Real Estate [Member] | Other Construction [Member]        
Financing Receivable, Allowance for Credit Losses [Roll Forward]        
Balance at beginning of period 9,860 12,065 13,297 5,758
Loans charged-off 0 (2,494) 0 (2,494)
Recoveries 1 255 3 272
PCL, LHFI (1,719) 4,071 (5,158) 10,361
Balance at end of period $ 8,142 $ 13,897 $ 8,142 $ 13,897