Schedule IV - Summary of Changes in Carrying Amounts of Mortgage Loans Receivable (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 Movement in Mortgage Loans on Real Estate [Roll Forward]
Balance, beginning of period	$ 181,419	$ 144,048	$ 87,029
Additions:
New mortgage loans	126,784	137,356	54,484
Subsequent funding on existing mortgage loans	17,236	0	3,500
Deductions:
Collections of principal	(91,488)	(100,179)	(11)
Provision for credit losses	27	194	(954)
Balance, end of period	$ 233,978	$ 181,419	$ 144,048