Loans and Allowance for Credit Losses - Schedule of Amortized Cost and Unpaid Principal for Impaired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	$ 4,324,758	$ 4,120,291
Unpaid Principal	4,338,550	4,136,981
Difference	(13,792)	(16,690)
Allowance for credit losses	(34,970)	(42,807)
Loans, net	4,289,788	4,077,484
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	768,711	678,144
Unpaid Principal	769,682	679,239
Difference	(971)	(1,095)
Construction, land development, land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	110,071	90,976
Unpaid Principal	110,456	91,147
Difference	(385)	(171)
1-4 family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	130,628	125,981
Unpaid Principal	130,830	126,185
Difference	(202)	(204)
Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	67,913	68,934
Unpaid Principal	68,090	69,185
Difference	(177)	(251)
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	1,218,892	1,251,110
Unpaid Principal	1,227,039	1,262,493
Difference	(8,147)	(11,383)
Factored receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	1,173,794	1,237,449
Unpaid Principal	1,177,702	1,241,032
Difference	(3,908)	(3,583)
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	8,409	8,868
Unpaid Principal	8,411	8,871
Difference	(2)	(3)
Mortgage warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Amortized Cost	846,340	658,829
Unpaid Principal	846,340	658,829
Difference	$ 0	$ 0

Financing Receivable, Investment Net Of Unpaid Principal, Excluding Accrued Interest

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Financing Receivable, Unpaid Principal, Excluding Accrued Interest

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

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Amortized cost excluding accrued interest, before allowance for credit loss, of 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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-5

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