EQUITY-BASED COMPENSATION EXPENSE - Equity Award Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Restricted Common Shares
Number of Shares (in thousands)
Ending balance (in shares)	0
RSUs
Number of Shares (in thousands)
Beginning balance (in shares)	12,021,000
Granted (in shares)	9,863,000
Vested (in shares)	(7,053,000)
Forfeited (in shares)	(115,000)
Ending balance (in shares)	14,716,000	12,021,000
Weighted-Average Grant Date Fair Value per Share
Beginning balance (in dollars per share)	$ 2.15
Granted (in dollars per share)	1.29
Vested (in dollars per share)	2.78
Forfeited (in dollars per share)	1.67
Ending balance (in dollars per share)	$ 1.28	$ 2.15
Taxes withheld under equity-based compensation plans, net (in shares)	2,433,000
RSUs | 2023 Annual Performance Bonus
Weighted-Average Grant Date Fair Value per Share
Value of awards vested at issuance		$ 3,304
RSUs | 2023 Annual Performance Bonus | Accounts payable and accrued expenses
Weighted-Average Grant Date Fair Value per Share
Value of awards vested at issuance		$ 2,838