Allowance for Credit Losses on Loans - Schedule of Changes in Allowance for Loan Losses, by Portfolio Type (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	$ 34,811	$ 30,926	$ 30,926
Charge-offs	(29,361)	(13,674)	(18,591)
Recoveries	662	716
Provision	79,601	15,313
Ending allowance	85,713	33,281	34,811
Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Unfunded lending commitments, beginning of period	1,210	2,810	2,810
Provision	(510)	(1,300)
Unfunded lending commitments, end of period	700	1,510	1,210
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Total, beginning balance	36,021	33,736	33,736
Charge-offs	(29,361)	(13,674)	(18,591)
Recoveries	662	716
Provision	79,091	14,013
Total, ending balance	86,413	34,791	36,021
Real Estate:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	28,703	24,744	24,744
Charge-offs	(26,259)	(6,283)
Recoveries	48	59
Provision	34,670	9,217
Ending allowance	37,162	27,737	28,703
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(26,259)	(6,283)
Recoveries	48	59
Real Estate: \| Construction & land development
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	3,930	5,845	5,845
Charge-offs	(5,794)	(39)	(39)
Recoveries	0	1
Provision	5,673	(954)
Ending allowance	3,809	4,853	3,930
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(5,794)	(39)	(39)
Recoveries	0	1
Real Estate: \| Farmland
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	50	36	36
Charge-offs	0	(258)	(258)
Recoveries	0	0
Provision	137	272
Ending allowance	187	50	50
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	0	(258)	(258)
Recoveries	0	0
Real Estate: \| 1- 4 family
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	9,243	6,653	6,653
Charge-offs	(490)	(939)	(1,034)
Recoveries	29	13
Provision	3,084	1,990
Ending allowance	11,866	7,717	9,243
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(490)	(939)	(1,034)
Recoveries	29	13
Real Estate: \| Multifamily
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	3,949	1,614	1,614
Charge-offs	(10,430)	0	0
Recoveries	0	0
Provision	7,474	(156)
Ending allowance	993	1,458	3,949
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(10,430)	0	0
Recoveries	0	0
Real Estate: \| Non-farm non-residential
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	11,531	10,596	10,596
Charge-offs	(9,545)	(5,047)	(9,000)
Recoveries	19	45
Provision	18,302	8,065
Ending allowance	20,307	13,659	11,531
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(9,545)	(5,047)	(9,000)
Recoveries	19	45
Non-Real Estate:
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	6,108	6,182	6,182
Charge-offs	(3,102)	(7,391)
Recoveries	614	657
Provision	44,931	6,096
Ending allowance	48,551	5,544	6,108
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(3,102)	(7,391)
Recoveries	614	657
Non-Real Estate: \| Agricultural
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	204	97	97
Charge-offs	(169)	(33)	(33)
Recoveries	1	26
Provision	170	174
Ending allowance	206	264	204
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(169)	(33)	(33)
Recoveries	1	26
Non-Real Estate: \| Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	1,994	2,711	2,711
Charge-offs	(1,055)	(4,521)	(4,873)
Recoveries	187	157
Provision	4,470	3,251
Ending allowance	5,596	1,598	1,994
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(1,055)	(4,521)	(4,873)
Recoveries	187	157
Non-Real Estate: \| Commercial leases
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	1,719	1,948	1,948
Charge-offs	(774)	0	0
Recoveries	0	0
Provision	39,884	147
Ending allowance	40,829	2,095	1,719
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(774)	0	0
Recoveries	0	0
Non-Real Estate: \| Consumer and other loans
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	1,337	1,426	1,426
Charge-offs	(1,104)	(2,837)	(3,354)
Recoveries	426	474
Provision	301	2,524
Ending allowance	960	1,587	1,337
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	(1,104)	(2,837)	(3,354)
Recoveries	426	474
Non-Real Estate: \| Unallocated
Allowance for Loan and Lease Losses [Roll Forward]
Beginning allowance	854	0	0
Charge-offs	0	0
Recoveries	0	0
Provision	106	0
Ending allowance	960	0	$ 854
Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability [Roll Forward]
Charge-offs	0	0
Recoveries	$ 0	$ 0

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