Loans and Allowance for Credit Losses on Loans HFI - Schedule of Analysis of Aging by Class of Financing Receivable (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 9,288,909	$ 9,408,783
90 days or more and accruing interest	12,858	12,693
Nonaccrual loans	54,892	48,230
30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	37,473	47,043
Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	9,183,686	9,300,817
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,621,611	1,720,733
90 days or more and accruing interest	0	0
Nonaccrual loans	24,643	21,730
Commercial and industrial \| 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,606	732
Commercial and industrial \| Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,595,362	1,698,271
Construction
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,268,883	1,397,313
90 days or more and accruing interest	585	165
Nonaccrual loans	5,077	2,872
Construction \| 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,474	6,579
Construction \| Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,261,747	1,387,697
Residential real estate: \| 1-to-4 family mortgage
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,577,824	1,568,552
90 days or more and accruing interest	9,610	9,355
Nonaccrual loans	8,825	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	17,881	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	1,541,508	1,530,711
Residential real estate: \| Residential line of credit
Financing Receivable, Past Due [Line Items]
Loans held for investment	549,306	530,912
90 days or more and accruing interest	1,097	1,337
Nonaccrual loans	1,112	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	1,717	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	545,380	525,975
Residential real estate: \| Multi-family mortgage
Financing Receivable, Past Due [Line Items]
Loans held for investment	615,081	603,804
90 days or more and accruing interest	0	0
Nonaccrual loans	31	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	615,050	603,772
Commercial real estate: \| Owner-occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,236,007	1,232,071
90 days or more and accruing interest	0	0
Nonaccrual loans	3,069	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	465	480
Commercial real estate: \| Owner-occupied \| Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,232,473	1,228,403
Commercial real estate: \| Non-owner occupied
Financing Receivable, Past Due [Line Items]
Loans held for investment	1,991,526	1,943,525
90 days or more and accruing interest	0	0
Nonaccrual loans	3,250	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	3,631	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	1,984,645	1,936,115
Consumer and other
Financing Receivable, Past Due [Line Items]
Loans held for investment	428,671	411,873
90 days or more and accruing interest	1,566	1,836
Nonaccrual loans	8,885	9,203
Consumer and other \| 30-89 days past due and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	10,699	10,961
Consumer and other \| Loans current on payments and accruing interest
Financing Receivable, Past Due [Line Items]
Loans held for investment	$ 407,521	$ 389,873

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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Amortized cost of financing receivable 90 days or more past due and still accruing. Excludes net investment in lease.

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