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

Allowance For Loan And Lease Losses And Off-Balance-Sheet, Credit Loss, Liability

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- Definition

Financing Receivable, Allowance For Credit Loss, Excluding Accrued Interest Including, Off-Balance-Sheet, Credit Loss, Liability

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No definition available.

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Financing Receivable, Excluding Accrued Interest, And Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal)

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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- Definition

Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

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- Definition

Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476148/220-40-50-22

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- Definition

Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482454/460-10-45-1

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Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

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