Loans and Allowance for Credit Losses - Summary of Allowance for Loan and Lease Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance			$ 42,807
Credit loss expense (benefit)	$ 2,643	$ 2,901	5,256	$ 3,402
Charge-offs			(13,735)
Ending Balance	34,970		34,970
Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	42,245	41,553	42,807	42,213
Credit loss expense (benefit)	3,514	2,069	5,167	2,933
Charge-offs	(11,077)	(1,068)	(13,735)	(2,719)
Recoveries	288	853	731	980
Ending Balance	34,970	43,407	34,970	43,407
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Charge-offs			0
Commercial real estate \| Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	4,292	3,527	4,459	3,961
Credit loss expense (benefit)	491	1,594	254	1,254
Charge-offs	0	0	0	(108)
Recoveries	0	46	70	60
Ending Balance	4,783	5,167	4,783	5,167
Construction, land development, land
Allowance for Loan and Lease Losses [Roll Forward]
Charge-offs			0
Construction, land development, land \| Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	1,139	901	1,155	827
Credit loss expense (benefit)	95	290	78	363
Charge-offs	0	0	0	0
Recoveries	1	1	2	2
Ending Balance	1,235	1,192	1,235	1,192
1-4 family residential
Allowance for Loan and Lease Losses [Roll Forward]
Charge-offs			(5)
1-4 family residential \| Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	1,004	450	838	468
Credit loss expense (benefit)	34	305	203	284
Charge-offs	0	0	(5)	0
Recoveries	8	2	10	5
Ending Balance	1,046	757	1,046	757
Farmland
Allowance for Loan and Lease Losses [Roll Forward]
Charge-offs			0
Farmland \| Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	472	121	483	562
Credit loss expense (benefit)	4	369	(7)	(72)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	476	490	476	490
Commercial
Allowance for Loan and Lease Losses [Roll Forward]
Charge-offs			(5,346)
Commercial \| Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	16,683	13,215	15,918	14,485
Credit loss expense (benefit)	1,368	(407)	2,315	(1,014)
Charge-offs	(5,124)	(260)	(5,346)	(984)
Recoveries	50	190	90	251
Ending Balance	12,977	12,738	12,977	12,738
Factored receivables
Allowance for Loan and Lease Losses [Roll Forward]
Charge-offs			(8,113)
Factored receivables \| Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	17,581	22,471	19,121	20,915
Credit loss expense (benefit)	1,521	(120)	2,071	2,115
Charge-offs	(5,820)	(712)	(8,113)	(1,420)
Recoveries	159	573	362	602
Ending Balance	13,441	22,212	13,441	22,212
Consumer
Allowance for Loan and Lease Losses [Roll Forward]
Charge-offs			(271)
Consumer \| Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	185	175	175	226
Credit loss expense (benefit)	44	77	65	118
Charge-offs	(133)	(96)	(271)	(207)
Recoveries	70	41	197	60
Ending Balance	166	197	166	197
Mortgage warehouse
Allowance for Loan and Lease Losses [Roll Forward]
Charge-offs			0
Mortgage warehouse \| Loans Held for Investment
Allowance for Loan and Lease Losses [Roll Forward]
Beginning Balance	889	693	658	769
Credit loss expense (benefit)	(43)	(39)	188	(115)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending Balance	$ 846	$ 654	$ 846	$ 654

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

+ Details

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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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- Definition

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 6
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-6

Reference 2: 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

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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

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