STOCKHOLDERS’ DEFICIT - Treasury Stock (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Mar. 31, 2023	Mar. 13, 2023	Mar. 31, 2018
Prepaid Forward
Debt Instrument [Line Items]
Funded prepaid forward	$ 45.1
Stock underlying the prepaid forward (in shares)	185,850
Number of shares prepaid (in shares)		185,850
2.50% Convertible Notes due 2023 | Convertible Notes
Debt Instrument [Line Items]
Interest rate			2.50%	2.50%