Loans and Allowance for Credit Losses on Loans HFI - Schedule of Loans Outstanding by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Gross loans	$ 9,771,536	$ 9,602,384
Less: Allowance for credit losses on loans HFI	(150,531)	(151,942)	$ (151,667)	$ (150,326)
Net loans held for investment	9,621,005	9,450,442
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Gross loans	1,782,981	1,691,213
Less: Allowance for credit losses on loans HFI	(15,521)	(16,667)	(17,272)	(19,599)
Construction
Financing Receivable, Past Due [Line Items]
Gross loans	1,022,299	1,087,732
Less: Allowance for credit losses on loans HFI	(25,652)	(31,698)	(37,308)	(35,372)
Residential real estate: | 1-to-4 family mortgage
Financing Receivable, Past Due [Line Items]
Gross loans	1,632,574	1,616,754
Less: Allowance for credit losses on loans HFI	(26,200)	(25,340)	(26,128)	(26,505)
Residential real estate: | Residential line of credit
Financing Receivable, Past Due [Line Items]
Gross loans	613,868	602,475
Less: Allowance for credit losses on loans HFI	(11,196)	(10,952)	(9,918)	(9,468)
Residential real estate: | Multi-family mortgage
Financing Receivable, Past Due [Line Items]
Gross loans	648,326	653,769
Less: Allowance for credit losses on loans HFI	(11,416)	(10,512)	(8,973)	(8,842)
Commercial real estate: | Owner-occupied
Financing Receivable, Past Due [Line Items]
Gross loans	1,356,007	1,357,568
Less: Allowance for credit losses on loans HFI	(12,074)	(11,993)	(10,749)	(10,653)
Commercial real estate: | Non-owner occupied
Financing Receivable, Past Due [Line Items]
Gross loans	2,153,825	2,099,129
Less: Allowance for credit losses on loans HFI	(28,319)	(25,531)	(23,949)	(22,965)
Consumer and other
Financing Receivable, Past Due [Line Items]
Gross loans	561,656	493,744
Less: Allowance for credit losses on loans HFI	$ (20,153)	$ (19,249)	$ (17,370)	$ (16,922)