FAIR VALUE DISCLOSURES - Face Values, Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financial assets:
Loans receivable	$ 391,685	$ 372,873
Loans receivable	403,673
Preferred equity investments	59,611	57,681
Preferred equity investments	61,606
Senior Notes
Financial liabilities:
Financial liabilities, face value	1,750,000	1,750,000
Financial liabilities, carrying amount and fair value	1,644,025
Secured Indebtedness
Financial liabilities:
Financial liabilities, face value	46,623	48,143
Financial liabilities, carrying amount and fair value	36,431
Carrying Amount
Financial assets:
Loans receivable	382,017	362,775
Preferred equity investments	59,808	57,849
Carrying Amount | Senior Notes
Financial liabilities:
Financial liabilities, carrying amount and fair value	1,735,848	1,735,253
Carrying Amount | Secured Indebtedness
Financial liabilities:
Financial liabilities, carrying amount and fair value	45,817	47,301
Fair Value
Financial assets:
Loans receivable	403,673	383,141
Preferred equity investments	61,606	59,526
Fair Value | Senior Notes
Financial liabilities:
Financial liabilities, carrying amount and fair value	1,644,025	1,567,428
Fair Value | Secured Indebtedness
Financial liabilities:
Financial liabilities, carrying amount and fair value	$ 36,431	$ 36,279