Notes Receivable - Interest Income and Payment Received (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 1,381	$ 1,370
Payment received relating to notes receivables	2,381
Notes Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	1,300	1,300
Payment received relating to notes receivables	5,100	$ 2,800
Accrued interest receivable	$ 39,600		$ 41,000