Mortgage Notes Receivable - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Loans and Leases Receivable Disclosure [Line Items]
Percentage of maximum loan to value ratio	65.00%
Percentage of maximum of amount of a single loan	10.00%
Percentage of maximum amount of loans to single borrower	15.00%
Monthly interest rate payment term	10 days
Principal outstanding on non accrual status	$ 155.3	$ 126.8
Maximum
Loans and Leases Receivable Disclosure [Line Items]
Term of mortgage notes receivable	18 months
Interest rate (as a percent)	13.00%
Minimum
Loans and Leases Receivable Disclosure [Line Items]
Term of mortgage notes receivable	5 months
Interest rate (as a percent)	10.00%