JOINT VENTURES AND PARTNERSHIPS - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Combined summary of balance sheets relating to unconsolidated joint ventures
Total real estate, net	$ 9,584,085		$ 9,756,029
Investments, at fair value	954,301		952,934
Cash and cash equivalents	2,116	$ 1,172	2,922	$ 1,193
Other assets	195,025		209,969
Total assets	11,190,488		11,373,242
Accounts payable and accrued liabilities	119,739		141,311
Total liabilities	6,333,899		6,420,801
Total equity	3,919,278	3,921,109	3,991,354	$ 4,098,295
Financial information relating to unconsolidated joint ventures operations
Total revenues	413,634	399,549
Property operating expenses	73,478	64,834
Real estate depreciation and amortization	169,858	169,300
Gain/(loss) on sale of real estate owned	16,867	1
Operating income	79,759	66,184
Interest expense	(48,062)	(43,742)
Other income/(loss)	5,865	1,010
Net income/(loss)	46,310	32,925
Unconsolidated Joint Ventures and Partnerships
Combined summary of balance sheets relating to unconsolidated joint ventures
Total real estate, net	3,180,973		3,158,057
Investments, at fair value	304,826		257,832
Cash and cash equivalents	69,247		61,670
Other assets	135,491		146,976
Total assets	3,690,537		3,624,535
Third party debt, net	2,027,146		2,012,816
Accounts payable and accrued liabilities	178,704		171,502
Total liabilities	2,205,850		2,184,318
Total equity	1,484,687		$ 1,440,217
Financial information relating to unconsolidated joint ventures operations
Total revenues	76,256	60,675
Property operating expenses	34,935	28,033
Real estate depreciation and amortization	36,962	24,428
Operating income	4,359	8,214
Interest expense	(24,537)	(23,951)
Other income/(loss)	(1,828)	2,322
Net unrealized/realized gain/(loss) on held investments	27,400	9,789
Net income/(loss)	$ 5,394	$ (3,626)