Schedule IV - Mortgage Loans on Real Estate - Roll forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of mortgage loans:
Balance at beginning of year	$ 74,629	$ 49,409	$ 66,586
Additions:
New mortgage loans	41,881	22,732	7,323
Draws on existing mortgage loans	3,979	2,129	0
Interest added	113	376	980
Total additions	45,973	25,237	8,303
Deductions:
Collection of principal	(51,528)	0	(10,000)
Collection of additional fees due at payoff	(552)	0	0
Conversion of loan receivable in connection to the acquisition of investment property	(5,397)	0	(15,500)
Change in reserve for loan losses	(787)	(17)	20
Total deductions	(58,264)	(17)	(25,480)
Balance at end of year	$ 62,338	$ 74,629	$ 49,409