Notes Receivable - Interest Income and Payment Received (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 2,547	$ 1,381
Payment received relating to notes receivables	2,143	2,381
Notes Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payment received relating to notes receivables	4,700	5,100
Accrued interest receivable	39,800		$ 41,000
Bonds A and B Series [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest income	$ 1,300	$ 1,300