Fair Value Measurement - Significant Inputs and Assumptions (Details) - Valuation Technique, Discounted Cash Flow - Fair Value, Inputs, Level 3	Dec. 31, 2022	Dec. 31, 2021
Minimum | Discount rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	6.36%	3.42%
Minimum | Discount rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	8.42%	4.96%
Minimum | Credit risk rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	0.01%	0.08%
Minimum | Credit risk rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	0.59%	0.04%
Minimum | Prepayment rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	0.08%	8.70%
Minimum | Prepayment rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	10.90%	15.60%
Maximum | Discount rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	22.28%	16.49%
Maximum | Discount rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	22.27%	15.72%
Maximum | Credit risk rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	93.09%	55.79%
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%	88.12%
Maximum | Prepayment rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	88.73%	36.08%
Weighted Average | Discount rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	11.87%	7.29%
Weighted Average | Discount rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	12.79%	6.78%
Weighted Average | Credit risk rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	16.93%	17.98%
Weighted Average | Credit risk rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	18.43%	18.47%
Weighted Average | Prepayment rate | Loans (at fair value)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	40.49%	40.35%
Weighted Average | Prepayment rate | Notes Receivable
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loan receivable, measurement input	42.66%	27.82%