Fair Value of Financial Instruments - Quantitative Information about Level 3 Fair Value Measurements (Details) $ in Thousands	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	$ 3,180	$ 937
Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	13,846,403	14,392,684
Level 3 | Recurring | Black-Scholes option pricing model
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants	$ 1,894	$ 1,889
Level 3 | Recurring | Black-Scholes option pricing model | Minimum | Marketability Discount
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0600	0.0600
Level 3 | Recurring | Black-Scholes option pricing model | Minimum | Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.3000	0.3000
Level 3 | Recurring | Black-Scholes option pricing model | Minimum | Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0432	0.0039
Level 3 | Recurring | Black-Scholes option pricing model | Maximum | Marketability Discount
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.1600	0.1600
Level 3 | Recurring | Black-Scholes option pricing model | Maximum | Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.3500	0.3500
Level 3 | Recurring | Black-Scholes option pricing model | Maximum | Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0441	0.0097
Level 3 | Recurring | Black-Scholes option pricing model | Weighted Average | Marketability Discount
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.1360	0.1361
Level 3 | Recurring | Black-Scholes option pricing model | Weighted Average | Volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.3114	0.3114
Level 3 | Recurring | Black-Scholes option pricing model | Weighted Average | Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity warrants, input	0.0439	0.0052
Level 3 | Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	$ 3,180	$ 937
Level 3 | Nonrecurring | Fair value of collateral
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value		937
Level 3 | Nonrecurring | Fair value of collateral | Commercial loans | Commercial and industrial
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	$ 3,180
Level 3 | Nonrecurring | Fair value of collateral | Investor loans secured by real estate | SBA secured by real estate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value		$ 937
Level 3 | Nonrecurring | Fair value of collateral | Minimum | Collateral discount and cost to sell | Commercial loans | Commercial and industrial
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.0600
Level 3 | Nonrecurring | Fair value of collateral | Minimum | Collateral discount and cost to sell | Investor loans secured by real estate | SBA secured by real estate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.1000
Level 3 | Nonrecurring | Fair value of collateral | Maximum | Collateral discount and cost to sell | Commercial loans | Commercial and industrial
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.0600
Level 3 | Nonrecurring | Fair value of collateral | Maximum | Collateral discount and cost to sell | Investor loans secured by real estate | SBA secured by real estate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.1000
Level 3 | Nonrecurring | Fair value of collateral | Weighted Average | Collateral discount and cost to sell | Commercial loans | Commercial and industrial
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input	0.0600
Level 3 | Nonrecurring | Fair value of collateral | Weighted Average | Collateral discount and cost to sell | Investor loans secured by real estate | SBA secured by real estate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, input		0.1000
Level 1
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	$ 0	$ 0
Level 1 | Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	0	0
Level 2
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	0	0
Level 2 | Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans receivable, fair value	$ 0	$ 0