INDEBTEDNESS - Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Principal Amount	$ 1,098,500	$ 1,100,000
Discount	(9,288)	(9,605)
Debt Issuance Costs	(23,763)	(24,495)
Net Balance	1,065,449	1,065,900
Less: current portion	(6,000)	(6,000)
Total long-term debt	1,059,449	1,059,900
Senior Notes | First Lien Term Loan
Debt Instrument [Line Items]
Principal Amount	598,500	600,000
Discount	(9,288)	(9,605)
Debt Issuance Costs	(12,892)	(13,331)
Net Balance	576,320	577,064
Senior Notes | Senior Notes
Debt Instrument [Line Items]
Principal Amount	500,000	500,000
Discount	0	0
Debt Issuance Costs	(10,871)	(11,164)
Net Balance	489,129	488,836
Senior Notes | Asset-based-lending (“ABL”) facility
Debt Instrument [Line Items]
Principal Amount	0	0
Discount	0	0
Debt Issuance Costs	0	0
Net Balance	$ 0	$ 0