Fair Value Measurement - Significant Inputs and Assumptions (Details) - Valuation Technique, Discounted Cash Flow - Fair Value, Inputs, Level 3	Mar. 31, 2023	Dec. 31, 2022
Minimum | Discount rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	6.36%	6.36%
Minimum | Discount rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	8.98%	8.42%
Minimum | Credit risk rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	0.01%	0.01%
Minimum | Credit risk rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	0.59%	0.59%
Minimum | Prepayment rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	0.05%	0.08%
Minimum | Prepayment rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	10.90%	10.90%
Maximum | Discount rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	22.67%	22.28%
Maximum | Discount rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	22.66%	22.27%
Maximum | Credit risk rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	93.05%	93.09%
Maximum | Credit risk rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	50.69%	50.69%
Maximum | Prepayment rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	93.43%	93.43%
Maximum | Prepayment rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	87.53%	88.73%
Weighted Average | Discount rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	11.78%	11.87%
Weighted Average | Discount rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	12.79%	12.79%
Weighted Average | Credit risk rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	16.97%	16.93%
Weighted Average | Credit risk rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	18.21%	18.43%
Weighted Average | Prepayment rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	40.65%	40.49%
Weighted Average | Prepayment rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	43.13%	42.66%