LOANS RECEIVABLE AND INVESTMENTS (Details) $ in Thousands, $ in Millions		3 Months Ended			6 Months Ended
	May 01, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	May 31, 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		$ 4,492			$ 4,492				$ 24,621
Non-mortgage loans receivable, net		24,500			24,500				24,338
Total loans receivable and investments, net, amortized cost		56,741			56,741				586,034
Total loans receivable and investments, net, carrying amount		52,249			52,249				561,413
Total loans receivable and investments, net, fair value		51,416			51,416				560,449
Allowance for loan			$ 12,000
Partial reversal of allowance		12,000			20,000
Valuation-related items recognized	$ 41,100
Gain on foreclosure of real estate		29,127		$ 0	29,127	$ 0
Mortgage loans and other
Accounts, Notes, Loans and Financing Receivable
Debt instrument, face amount		360,200			360,200			$ 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		4,492			4,492				4,621
Non-mortgage loans receivable, amortized cost		28,992			28,992				28,959
Non-mortgage loans receivable, net		24,500			24,500				24,338
Non-mortgage loans receivable, fair value		23,626			23,626				23,416
Secured/mortgage loans and other, net
Accounts, Notes, Loans and Financing Receivable
Secured mortgage loans and other, net		27,749			27,749				513,669
Debt Securities, Held-to-maturity, Allowance for Credit Loss		0			0				20,000
Debt securities, held-to-maturity, carrying amount		27,749			27,749				493,669
Debt securities, held-to-maturity, fair value		$ 27,790			$ 27,790				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
Partial reversal of allowance			$ 8,000