Loans Receivable - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($) loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans in forbearance | loan	2
Loans in forbearance, principal outstanding | $	$ 125.3
Loans in forbearance, repayment period from January 9, 2021 to December 9, 2021	12 months
D Rating
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of days past due, classified as delinquent	90 days