FAIR VALUE OF FINANCIAL INSTRUMENTS - Schedule of carrying amounts and fair values of our financial instruments either recorded or disclosed on a recurring basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets:
Cash and cash equivalents	$ 508,794	$ 122,564
Stock warrants	59,281	23,621
Non-mortgage loans receivable, net	$ 26,152	$ 24,338
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Liabilities:
Senior notes payable and other debt, gross, carrying amount	$ 13,568,598	$ 12,361,244
Redeemable OP Units, fair value	$ 173,500	$ 162,700
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Accounts payable and other liabilities	Accounts payable and other liabilities
Non-mortgage loans receivable, net
Assets:
Non-mortgage loans receivable, net	$ 26,152	$ 24,338
Non-mortgage loans receivable, fair value	25,200	23,416
Secured/mortgage loans and other, net
Assets:
Held-to-maturity securities, amortized cost	27,986	513,669
Held-to-maturity securities, fair value	27,947	493,627
Government-Sponsored Pooled Loan Investments
Assets:
Government-sponsored pooled loan investments, net (3)		43,406
Carrying Amount
Assets:
Cash and cash equivalents	508,794	122,564
Escrow deposits and restricted cash (1)	54,668	48,181
Derivative instruments	19,782	24,316
Liabilities:
Senior notes payable and other debt, gross, carrying amount	13,568,598	12,361,244
Derivative instruments	2,525	145
Redeemable OP Units, carrying amount	173,452	162,663
Carrying Amount | Non-mortgage loans receivable, net
Assets:
Non-mortgage loans receivable, net	26,152	24,338
Carrying Amount | Secured/mortgage loans and other, net
Assets:
Held-to-maturity securities, amortized cost	27,986	493,669
Carrying Amount | Government-Sponsored Pooled Loan Investments
Assets:
Government-sponsored pooled loan investments, net (3)	0	43,406
Fair Value
Assets:
Cash and Cash Equivalents, Fair Value Disclosure	508,794	122,564
Escrow deposits and restricted cash (1)	54,668	48,181
Stock warrants	59,281	23,621
Derivative instruments	19,782	24,316
Liabilities:
Senior notes payable and other debt, gross, fair value	13,104,091	11,493,824
Derivative instruments	2,525	145
Redeemable OP Units, fair value	173,452	162,663
Fair Value | Non-mortgage loans receivable, net
Assets:
Non-mortgage loans receivable, fair value	25,200	23,416
Fair Value | Secured/mortgage loans and other, net
Assets:
Held-to-maturity securities, fair value	27,947	493,627
Fair Value | Government-Sponsored Pooled Loan Investments
Assets:
Government-sponsored pooled loan investments, net (3)	$ 0	$ 43,406