Loans and Allowance for Credit Losses on Loans HFI - Schedule of Analysis of Aging by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 9,478,129	$ 9,408,783
90 days or  more and accruing interest	26,250	12,693
Nonaccrual loans	64,585	48,230
30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	40,461	47,043
Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	9,346,833	9,300,817
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,688,815	1,720,733
90 days or  more and accruing interest	600	0
Nonaccrual loans	22,458	21,730
Commercial and industrial | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	760	732
Commercial and industrial | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,664,997	1,698,271
Construction
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,079,726	1,397,313
90 days or  more and accruing interest	365	165
Nonaccrual loans	11,181	2,872
Construction | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	2,734	6,579
Construction | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,065,446	1,387,697
Residential real estate: | 1-to-4 family mortgage
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,612,031	1,568,552
90 days or  more and accruing interest	15,249	9,355
Nonaccrual loans	8,599	6,718
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	21,644	21,768
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	1,566,539	1,530,711
Residential real estate: | Residential line of credit
Financing Receivable, Past Due [Line Items]
Loans held for investment	591,049	530,912
90 days or  more and accruing interest	1,331	1,337
Nonaccrual loans	227	1,136
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	2,061	2,464
Residential real estate: | Residential line of credit | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	587,430	525,975
Residential real estate: | Multi-family mortgage
Financing Receivable, Past Due [Line Items]
Loans held for investment	654,188	603,804
90 days or  more and accruing interest	0	0
Nonaccrual loans	25	32
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	654,163	603,772
Commercial real estate: | Owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,324,208	1,232,071
90 days or  more and accruing interest	95	0
Nonaccrual loans	8,904	3,188
Commercial real estate: | Owner-occupied | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	236	480
Commercial real estate: | Owner-occupied | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,314,973	1,228,403
Commercial real estate: | Non-owner occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment	2,048,036	1,943,525
90 days or  more and accruing interest	3,512	0
Nonaccrual loans	3,055	3,351
Commercial real estate: | Non-owner occupied | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	65	4,059
Commercial real estate: | Non-owner occupied | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	2,041,404	1,936,115
Consumer and other
Financing Receivable, Past Due [Line Items]
Loans held for investment	480,076	411,873
90 days or  more and accruing interest	5,098	1,836
Nonaccrual loans	10,136	9,203
Consumer and other | 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	12,961	10,961
Consumer and other | Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 451,881	$ 389,873