v3.25.2
LHFI and ACL, LHFI - Loan Portfolio Held for Investment (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Loan Portfolio [Abstract]            
Total LHFI $ 13,464,780   $ 13,089,942      
Less ACL, LHFI 168,237 $ 167,010 160,270 $ 154,685 $ 142,998 $ 139,367
Net LHFI 13,296,543   12,929,672      
Construction, Land Development and Other Land [Member] | Loans Secured by Real Estate [Member]            
Loan Portfolio [Abstract]            
Total LHFI 560,913   587,244      
Other Secured by 1-4 Family Residential Properties [Member] | Loans Secured by Real Estate [Member]            
Loan Portfolio [Abstract]            
Total LHFI 689,089   650,550      
Secured by 1-4 Family Residential Properties [Member] | Other Loans Secured by Real Estate [Member]            
Loan Portfolio [Abstract]            
Total LHFI 2,368,273   2,298,993      
Other Real Estate Secured [Member] | Loans Secured by Real Estate [Member]            
Loan Portfolio [Abstract]            
Total LHFI 1,918,341   1,633,830      
Other Construction [Member] | Other Loans Secured by Real Estate [Member]            
Loan Portfolio [Abstract]            
Total LHFI 794,310   829,904      
Secured by Nonfarm, Nonresidential Properties [Member] | Loans Secured by Real Estate [Member]            
Loan Portfolio [Abstract]            
Total LHFI 3,478,932   3,533,282      
Less ACL, LHFI 35,017 39,973 37,896 41,136 33,292 24,043
Commercial and Industrial Loans [Member]            
Loan Portfolio [Abstract]            
Total LHFI 1,832,295   1,840,722      
Less ACL, LHFI 28,465 25,396 27,020 28,735 27,930 26,638
Consumer Loans [Member]            
Loan Portfolio [Abstract]            
Total LHFI 152,921   156,569      
Less ACL, LHFI 5,111 5,238 5,141 5,645 5,523 5,794
State and Other Political Subdivision Loans [Member]            
Loan Portfolio [Abstract]            
Total LHFI 961,251   969,836      
Less ACL, LHFI 1,547 1,605 1,250 625 638 646
Other Commercial Loans and Leases [Member]            
Loan Portfolio [Abstract]            
Total LHFI 708,455   589,012      
Less ACL, LHFI $ 7,451 $ 6,530 $ 6,247 $ 6,489 $ 6,056 $ 7,072