Loans Held for Investment - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	$ 12,437	$ 30,905
Collateral dependent loans, ACL	0	1,742
Non-collateral dependent loans, balance	13,021	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	25,458	30,905
Nonaccrual Loans with No ACL	25,458	29,163
Investor loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	1,667	13,742
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	1,667	13,742
Nonaccrual Loans with No ACL	1,667	13,742
Investor loans secured by real estate \| CRE non-owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	425	4,429
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	425	4,429
Nonaccrual Loans with No ACL	425	4,429
Investor loans secured by real estate \| Multifamily
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance		8,780
Collateral dependent loans, ACL		0
Non-collateral dependent loans, balance		0
Non-collateral dependent loans, 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]
Collateral dependent loans, balance	1,242	533
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	1,242	533
Nonaccrual Loans with No ACL	1,242	533
Business loans secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	9,999	12,666
Collateral dependent loans, ACL	0	1,742
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	9,999	12,666
Nonaccrual Loans with No ACL	9,999	10,924
Business loans secured by real estate \| SBA secured by real estate
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	1,173	1,191
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	1,173	1,191
Nonaccrual Loans with No ACL	1,173	1,191
Business loans secured by real estate \| CRE owner-occupied
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	8,826	11,475
Collateral dependent loans, ACL	0	1,742
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	8,826	11,475
Nonaccrual Loans with No ACL	8,826	9,733
Commercial loans
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	771	4,497
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	13,021	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	13,792	4,497
Nonaccrual Loans with No ACL	13,792	4,497
Commercial loans \| Commercial and industrial
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	233	3,908
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	13,021	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	13,254	3,908
Nonaccrual Loans with No ACL	13,254	3,908
Commercial loans \| SBA non-real estate secured
Financing Receivable, Nonaccrual [Line Items]
Collateral dependent loans, balance	538	589
Collateral dependent loans, ACL	0	0
Non-collateral dependent loans, balance	0	0
Non-collateral dependent loans, ACL	0	0
Total Nonaccrual Loans	538	589
Nonaccrual Loans with No ACL	$ 538	$ 589

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Financing Receivable, Collateral Dependent, Nonaccrual, Allowance for Credit Loss

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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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