FAIR VALUES OF FINANCIAL INSTRUMENTS - Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Assets:
Cash and cash equivalents	$ 182,335	$ 897,850
Escrow deposits and restricted cash	63,628	59,383
Non-mortgage loans receivable, net	25,642	28,129
Liabilities:
Senior notes payable and other debt, gross	12,793,021	13,618,802
Non-mortgage loans receivable, net
Assets:
Non-mortgage loans receivable, net	25,642	28,129
Non-mortgage loans receivable, fair value	25,276	27,640
Secured/mortgage loans and other, net
Assets:
Secured mortgage loans and other, net	145,184	144,872
Secured mortgage loans and other, net, fair value	146,113	146,229
Carrying Amount
Assets:
Cash and cash equivalents	182,335	897,850
Escrow deposits and restricted cash	63,628	59,383
Stock warrants	32,652	40,192
Derivative instruments	8,183	12,908
Liabilities:
Derivative instruments	8,205	5,887
Redeemable OP Units	233,608	200,420
Carrying Amount | Non-mortgage loans receivable, net
Assets:
Non-mortgage loans receivable, net	25,642	28,129
Carrying Amount | Secured/mortgage loans and other, net
Assets:
Secured mortgage loans and other, net	145,184	144,872
Fair Value
Assets:
Cash and cash equivalents, fair value	182,335	897,850
Escrow deposits and restricted cash	63,628	59,383
Stock warrants	32,652	40,192
Derivative instruments	8,183	12,908
Liabilities:
Senior notes payable and other debt, gross, fair value	12,799,116	13,411,066
Derivative instruments	8,205	5,887
Redeemable OP Units, fair value	233,608	200,420
Fair Value | Non-mortgage loans receivable, net
Assets:
Non-mortgage loans receivable, fair value	25,276	27,640
Fair Value | Secured/mortgage loans and other, net
Assets:
Secured mortgage loans and other, net, fair value	$ 146,113	$ 146,229