EXPENSES, CHANGE IN FAIR VALUE OF INVESTMENTS AND OTHER - Schedule of Other Income (Loss), Net (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Other income (loss), net
Unrealized gain (loss) on secured notes and bonds payable	$ 15,128	$ 4,029	$ 50,279	$ 5,245
Rental revenue	16,937	19,072	37,339	39,094
Property and maintenance revenue	34,520	28,755	100,860	73,765
(Provision) reversal for credit losses on securities	(2,812)	2,370	(5,697)	5,020
Valuation and credit loss (provision) reversal on loans and real estate owned	(3,932)	(8,748)	(8,575)	42,617
Other income (loss)	(36,599)	7,410	(39,244)	(38,408)
Total other income (loss), net	$ 23,242	$ 52,888	$ 134,962	$ 127,333