Schedule IV - Mortgage Loans on Real Estate (Changes in Mortgage Loans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Abstract]
Balance, beginning of period	$ 4,978	$ 6,423	$ 7,868
Deductions	(1,446)	(1,445)	(1,445)
Balance, end of period	$ 3,532	$ 4,978	$ 6,423