DEBT - Interest Expense Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument
Amortization of debt discount and debt issuance costs	$ (4,574)	$ (7,029)	$ (3,297)
Total	(23,629)	(28,379)	(23,298)
Contractual interest expense - Term Loans
Debt Instrument
Contractual interest expense	(16,016)	(18,583)	(9,341)
Convertible Senior Notes due 2026 | Senior Notes
Debt Instrument
Contractual interest expense	(1,500)	(1,500)	(1,213)
2019 Credit Agreement
Debt Instrument
Interest expense and amortization of debt issuance costs - terminated 2019 Credit Agreement and Senior Unsecured Bridge loan facility	0	0	(8,203)
Revolving Credit Facility | Revolving credit facility
Debt Instrument
Contractual interest expense	$ (1,539)	$ (1,267)	$ (1,244)