Loans Held for Investment - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Nonaccrual [Line Items]
Balance	$ 30,905	$ 18,858
ACL	1,742	1,455
Balance	0	12,415
ACL	0	0
Total Nonaccrual Loans	30,905	31,273
Nonaccrual Loans with No ACL	29,163	23,657
Investor loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Balance	13,742	11,192
ACL	0	1,455
Balance	0	0
ACL	0	0
Total Nonaccrual Loans	13,742	11,192
Nonaccrual Loans with No ACL	13,742	3,577
Investor loans secured by real estate \| CRE non-owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Balance	4,429	10,255
ACL	0	1,455
Balance	0	0
ACL	0	0
Total Nonaccrual Loans	4,429	10,255
Nonaccrual Loans with No ACL	4,429	2,640
Investor loans secured by real estate \| Multifamily
Financing Receivable, Nonaccrual [Line Items]
Balance	8,780
ACL	0
Balance	0
ACL	0
Total Nonaccrual Loans	8,780
Nonaccrual Loans with No ACL	8,780
Investor loans secured by real estate \| SBA secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Balance	533	937
ACL	0	0
Balance	0	0
ACL	0	0
Total Nonaccrual Loans	533	937
Nonaccrual Loans with No ACL	533	937
Business loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Balance	12,666	5,541
ACL	1,742	0
Balance	0	0
ACL	0	0
Total Nonaccrual Loans	12,666	5,541
Nonaccrual Loans with No ACL	10,924	5,541
Business loans secured by real estate \| SBA secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Balance	1,191	589
ACL	0	0
Balance	0	0
ACL	0	0
Total Nonaccrual Loans	1,191	589
Nonaccrual Loans with No ACL	1,191	589
Business loans secured by real estate \| CRE owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Balance	11,475	4,952
ACL	1,742	0
Balance	0	0
ACL	0	0
Total Nonaccrual Loans	11,475	4,952
Nonaccrual Loans with No ACL	9,733	4,952
Commercial loans
Financing Receivable, Nonaccrual [Line Items]
Balance	4,497	2,115
ACL	0	0
Balance	0	12,415
ACL	0	0
Total Nonaccrual Loans	4,497	14,530
Nonaccrual Loans with No ACL	4,497	14,529
Commercial loans \| Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
Balance	3,908	1,462
ACL	0	0
Balance	0	336
ACL	0	0
Total Nonaccrual Loans	3,908	1,798
Nonaccrual Loans with No ACL	3,908	1,797
Commercial loans \| SBA non-real estate secured
Financing Receivable, Nonaccrual [Line Items]
Balance	589	653
ACL	0	0
Balance	0	0
ACL	0	0
Total Nonaccrual Loans	589	653
Nonaccrual Loans with No ACL	$ 589	653
Commercial loans \| Franchise non-real estate secured
Financing Receivable, Nonaccrual [Line Items]
Balance		0
ACL		0
Balance		12,079
ACL		0
Total Nonaccrual Loans		12,079
Nonaccrual Loans with No ACL		12,079
Retail loans
Financing Receivable, Nonaccrual [Line Items]
Balance		10
ACL		0
Balance		0
ACL		0
Total Nonaccrual Loans		10
Nonaccrual Loans with No ACL		10
Retail loans \| Single family residential
Financing Receivable, Nonaccrual [Line Items]
Balance		10
ACL		0
Balance		0
ACL		0
Total Nonaccrual Loans		10
Nonaccrual Loans with No ACL		$ 10

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Amortized cost of financing receivable on nonaccrual status with no allowance for credit loss. Excludes net investment in lease.

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