Fair Value Measurements - Items Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Senior Secured and Mezzanine Loans Receivable
Assets:
Loan receivable	$ 158,662
Recurring | Secured Loan Receivable
Assets:
Loan receivable	119,991
Recurring | Mezzanine loan receivable
Assets:
Loan receivable	38,671	$ 15,155
Recurring | Level 1 | Senior Secured and Mezzanine Loans Receivable
Assets:
Loan receivable	0
Recurring | Level 1 | Secured Loan Receivable
Assets:
Loan receivable	0
Recurring | Level 1 | Mezzanine loan receivable
Assets:
Loan receivable	0	0
Recurring | Level 2 | Senior Secured and Mezzanine Loans Receivable
Assets:
Loan receivable	0
Recurring | Level 2 | Secured Loan Receivable
Assets:
Loan receivable	0
Recurring | Level 2 | Mezzanine loan receivable
Assets:
Loan receivable	0	0
Recurring | Level 3 | Senior Secured and Mezzanine Loans Receivable
Assets:
Loan receivable	158,662
Recurring | Level 3 | Secured Loan Receivable
Assets:
Loan receivable	119,991
Recurring | Level 3 | Mezzanine loan receivable
Assets:
Loan receivable	$ 38,671	$ 15,155