LOANS RECEIVABLE AND INVESTMENTS (Details) $ in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Jul. 31, 2023 USD ($)	May 01, 2023 USD ($)	Mar. 31, 2023 CAD ($)	Dec. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable
Debt Securities, Held-to-maturity, Allowance for Credit Loss	$ 4,425		$ 4,425					$ 24,621
Non-mortgage loans receivable, net	24,587		24,587					24,338
Total loans receivable and investments, net, amortized cost	56,835		56,835					586,034
Total loans receivable and investments, net, carrying amount	52,410		52,410					561,413
Total loans receivable and investments, net, fair value	51,249		51,249					560,449
Debt instrument, face amount	1,566,000		1,566,000
Gain on foreclosure of real estate	0	$ 0	29,127	$ 0
Mortgage loans and other
Accounts, Notes, Loans and Financing Receivable
Debt instrument, face amount					$ 426,800		$ 271.8
Mortgage loans and other | Nonrecourse
Accounts, Notes, Loans and Financing Receivable
Debt instrument, face amount						$ 1,000,000
Non-mortgage loans receivable, net
Accounts, Notes, Loans and Financing Receivable
Debt Securities, Held-to-maturity, Allowance for Credit Loss	4,425		4,425					4,621
Non-mortgage loans receivable, amortized cost	29,012		29,012					28,959
Non-mortgage loans receivable, net	24,587		24,587					24,338
Non-mortgage loans receivable, fair value	23,396		23,396					23,416
Secured/mortgage loans and other, net
Accounts, Notes, Loans and Financing Receivable
Secured mortgage loans and other, net	27,823		27,823					513,669
Debt Securities, Held-to-maturity, Allowance for Credit Loss	0		0					20,000
Debt securities, held-to-maturity, carrying amount	27,823		27,823					493,669
Debt securities, held-to-maturity, fair value	$ 27,853		$ 27,853					493,627
Government-sponsored pooled loan investments, net
Accounts, Notes, Loans and Financing Receivable
Debt Securities, Held-to-maturity, Allowance for Credit Loss								0
Debt securities, available-for-sale, amortized cost								43,406
Government-sponsored pooled loan investments, net								43,406
Total investments reported as secured loans receivable and investments, net
Accounts, Notes, Loans and Financing Receivable
Debt Securities, Held-to-maturity, Allowance for Credit Loss								20,000
Debt securities, available-for-sale and held-to-maturity, amortized cost								557,075
Debt Securities, Available-for-sale and Held-to-maturity								537,075
Debt securities, Available-for-Sale and Held-to-Maturity, fair value								537,033
Mezzanine Loan
Accounts, Notes, Loans and Financing Receivable
Allowance for loan								$ 20,000