Schedule IV - Mortgage Loans on Real Estate - Reconciliation of Mortgage Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reconciliation of mortgage loans:
Balance at beginning of year	$ 1,043,252	$ 697,906	$ 877,102
Additions:
Advances on loans	513,380	313,877	33,555
Other additions (1)	84,886	39,768	49,932
Total additions	598,266	353,645	83,487
Deductions:
Collection of principal	(84,824)	(42,415)	(181,040)
Other deductions (2)	(15,608)	0	0
Change in allowance for credit losses and charge-offs	(5,858)	(4,706)	2,894
Total deductions	(106,290)	(47,121)	(178,146)
Change in balance due to foreign currency translation	(14,725)	38,822	(84,537)
Balance at end of year	$ 1,520,503	$ 1,043,252	$ 697,906