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Loans, Allowance for Credit Losses, and Asset Quality Information - Summary of Major Categories of Total Loans Outstanding (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Mar. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 8,027,353	$ 6,666,548
Unamortized net deferred loan fees		(316)	(1,403)
Total loans		$ 8,027,037	6,665,145
Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	100.00%	100.00%
Total SBA loans included in the table above
Loans and Leases Receivable Disclosure [Line Items]
Total loans		$ 153,930	148,803
Guaranteed portions of SBA loans included in table above
Loans and Leases Receivable Disclosure [Line Items]
Total loans		40,849	31,893
Unguaranteed portions of SBA loans included in table above
Loans and Leases Receivable Disclosure [Line Items]
Total loans		113,081	116,910
Sold portions of SBA loans with servicing retained - not included in tables above
Loans and Leases Receivable Disclosure [Line Items]
Total loans		364,859	392,370
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 893,910	641,941
Commercial and industrial | Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	9.00%	11.00%
Real estate, commercial | Construction, development & other land loans
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 1,008,289	934,176
Real estate, commercial | Construction, development & other land loans | Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	14.00%	13.00%
Real estate, commercial | Commercial real estate - owner occupied
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 1,252,259	1,036,270
Real estate, commercial | Commercial real estate - owner occupied | Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	16.00%	16.00%
Real estate, commercial | Commercial real estate - non owner occupied
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 2,509,317	2,123,811
Real estate, commercial | Commercial real estate - non owner occupied | Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	32.00%	31.00%
Real estate, commercial | Multi-family real estate
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 405,161	350,180
Real estate, commercial | Multi-family real estate | Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	5.00%	5.00%
Real estate, mortgage | Residential 1-4 family real estate
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 1,560,140	1,195,785
Real estate, mortgage | Residential 1-4 family real estate | Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	18.00%	19.00%
Real estate, mortgage | Home equity loans/lines of credit
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 331,108	323,726
Real estate, mortgage | Home equity loans/lines of credit | Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	5.00%	4.00%
Consumer loans
Loans and Leases Receivable Disclosure [Line Items]
Total		$ 67,169	$ 60,659
Consumer loans | Financing Receivable | Loan Category Concentration Risk
Loans and Leases Receivable Disclosure [Line Items]
Percentage	1.00%	1.00%

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