OTHER ASSETS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Other Assets Disclosure [Line Item]
Straight-line rent receivables	$ 250,833	$ 202,675
Deferred lease costs, net	163,481	145,973
Accounts receivable, net	99,872	108,138
Investment in unconsolidated operating entities	100,614	95,623
Prepaid assets	81,389	71,786
Non-mortgage loans receivable, net	20,827	28,129
Other intangibles, net	10,681	11,513
Other (2)	97,832	128,826
Total Other assets	825,529	792,663
Allowance for doubtful accounts	$ 71,500	$ 70,300
Common stock, shares issued (in shares)	474,926	437,085
Brookdale
Other Assets Disclosure [Line Item]
Common stock, shares issued (in shares)	5,700
Proceeds From Sale Of Common Stock	$ 35,600
Kindred
Other Assets Disclosure [Line Item]
Class of warrant or right, ownership percentage, parent	9.90%
Brookdale
Other Assets Disclosure [Line Item]
Shares of common stock (in shares)	11,100
Exercise price (usd per share)	$ 3.00