Loans and Allowance for Credit Losses - Summary of Amortized Cost of Loans Currently in Deferral (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	$ 4,724,078	$ 4,867,572
Balance of Loans Currently in Deferral	$ 1,340	$ 31,896
Percentage of Portfolio	0.00%	0.70%
Accrued Interest Receivable	$ 5	$ 124
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	625,763	632,775
Balance of Loans Currently in Deferral	$ 0	$ 30,212
Percentage of Portfolio	0.00%	4.80%
Accrued Interest Receivable	$ 0	$ 116
Construction, land development, land
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	119,560	123,464
Balance of Loans Currently in Deferral	$ 1,340	$ 1,340
Percentage of Portfolio	1.10%	1.10%
Accrued Interest Receivable	$ 5	$ 5
1-4 family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	117,534	123,115
Balance of Loans Currently in Deferral	$ 0	$ 0
Percentage of Portfolio	0.00%	0.00%
Accrued Interest Receivable	$ 0	$ 0
Farmland
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	17,910	77,394
Balance of Loans Currently in Deferral	$ 0	$ 338
Percentage of Portfolio	0.00%	0.40%
Accrued Interest Receivable	$ 0	$ 3
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,375,044	1,430,429
Balance of Loans Currently in Deferral	$ 0	$ 0
Percentage of Portfolio	0.00%	0.00%
Accrued Interest Receivable	$ 0	$ 0
Factored receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	1,764,590	1,699,537
Balance of Loans Currently in Deferral	$ 0	$ 0
Percentage of Portfolio	0.00%	0.00%
Accrued Interest Receivable	$ 0	$ 0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	9,276	10,885
Balance of Loans Currently in Deferral	$ 0	$ 6
Percentage of Portfolio	0.00%	0.10%
Accrued Interest Receivable	$ 0	$ 0
Mortgage warehouse
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Loans	694,401	769,973
Balance of Loans Currently in Deferral	$ 0	$ 0
Percentage of Portfolio	0.00%	0.00%
Accrued Interest Receivable	$ 0	$ 0