INVESTMENT IN REAL ESTATE PROPERTIES - Summarized Financial Information for Enlivant Joint Venture (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Balance Sheet Amounts
Total assets	$ 5,303,679	$ 5,386,150
Total liabilities	2,562,391	2,583,616
Income Statement Amounts
Total revenues	703,235	647,514	$ 624,811
Other-than-temporary impairment	0	0	57,778
Loss from unconsolidated joint venture	(397)	(2,897)	(98,032)
Enlivant Joint Venture
Income Statement Amounts
Company’s share of net loss	(397)	(2,897)	(32,581)
Basis adjustments	0	0	7,673
Other-than-temporary impairment	0	0	57,778
Loss from unconsolidated joint venture	(397)	(2,897)	(98,032)
Enlivant Joint Venture
Balance Sheet Amounts
Total assets	313,480	353,779
Total liabilities	97,722	106,490
Member’s equity	215,758	247,289
Income Statement Amounts
Total revenues	70,615	64,446	351,073
Operating expenses	49,455	47,811	324,462
Net loss	$ (5,559)	$ (9,823)	(66,171)
Funding payments beyond contractual requirements			$ 25,000