Loans and Allowance for Credit Losses on Loans HFI - Schedule of Analysis of Aging by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 9,408,783	$ 9,298,212
90 days or  more and accruing interest	12,693	18,415
Nonaccrual loans	48,230	27,431
30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	47,043	31,296
Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	9,300,817	9,221,070
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,720,733	1,645,783
90 days or  more and accruing interest	0	136
Nonaccrual loans	21,730	1,307
Commercial and industrial | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	732	1,650
Commercial and industrial | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,698,271	1,642,690
Construction
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,397,313	1,657,488
90 days or  more and accruing interest	165	0
Nonaccrual loans	2,872	389
Construction | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	6,579	1,246
Construction | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,387,697	1,655,853
Residential real estate: | 1-to-4 family mortgage
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,568,552	1,573,121
90 days or  more and accruing interest	9,355	16,639
Nonaccrual loans	6,718	6,476
Residential real estate: | 1-to-4 family mortgage | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	21,768	15,470
Residential real estate: | 1-to-4 family mortgage | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,530,711	1,534,536
Residential real estate: | Residential line of credit
Financing Receivable, Past Due [Line Items]
Loans held for investment	530,912	496,660
90 days or  more and accruing interest	1,337	131
Nonaccrual loans	1,136	1,400
Residential real estate: | Residential line of credit | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	2,464	772
Residential real estate: | Residential line of credit | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	525,975	494,357
Residential real estate: | Multi-family mortgage
Financing Receivable, Past Due [Line Items]
Loans held for investment	603,804	479,572
90 days or  more and accruing interest	0	0
Nonaccrual loans	32	42
Residential real estate: | Multi-family mortgage | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	0	0
Residential real estate: | Multi-family mortgage | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	603,772	479,530
Commercial real estate: | Owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,232,071	1,114,580
90 days or  more and accruing interest	0	0
Nonaccrual loans	3,188	5,410
Commercial real estate: | Owner-occupied | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	480	1,948
Commercial real estate: | Owner-occupied | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,228,403	1,107,222
Commercial real estate: | Non-owner occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,943,525	1,964,010
90 days or  more and accruing interest	0	0
Nonaccrual loans	3,351	5,956
Commercial real estate: | Non-owner occupied | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	4,059	102
Commercial real estate: | Non-owner occupied | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,936,115	1,957,952
Consumer and other
Financing Receivable, Past Due [Line Items]
Loans held for investment	411,873	366,998
90 days or  more and accruing interest	1,836	1,509
Nonaccrual loans	9,203	6,451
Consumer and other | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	10,961	10,108
Consumer and other | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 389,873	$ 348,930