OTHER ASSETS - Narrative (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Class of Warrant or Right [Line Items]
Common stock, shares issued (in shares)	419,267	419,267		402,380
Issuance of common stock, net	$ 14,000	$ 850,561	$ 108,455
Brookdale (2)
Class of Warrant or Right [Line Items]
Common stock, shares issued (in shares)	2,100	2,100
Brookdale (2)
Class of Warrant or Right [Line Items]
Warrants exercisable (in shares)	12,600	12,600
Warrants, exercise price (usd per share)	$ 3.00	$ 3.00
Number of securities called by warrants (in shares)	3,700	3,700
Kindred
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Ownership Percentage, Parent	9.90%	9.90%