FAIR VALUE OF FINANCIAL INSTRUMENTS - Carrying Value (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Term Loan B | Carrying Value
Fair Value Of Instruments [Line Items]
Debt	$ 632,415	$ 754,006
Term Loan B | Fair Value
Fair Value Of Instruments [Line Items]
Debt	626,881	737,041
Revolver | Carrying Value
Fair Value Of Instruments [Line Items]
Debt	97,727	114,727
Revolver | Fair Value
Fair Value Of Instruments [Line Items]
Debt	97,727	114,727
Senior Notes | Carrying Value
Fair Value Of Instruments [Line Items]
Debt	0	400,000
Senior Notes | Fair Value
Fair Value Of Instruments [Line Items]
Debt	0	398,000
6.750% notes, due March 31, 2029 | Carrying Value
Fair Value Of Instruments [Line Items]
Debt	540,000	0
6.750% notes, due March 31, 2029 | Fair Value
Fair Value Of Instruments [Line Items]
Debt	527,850	0
Notes | Carrying Value
Fair Value Of Instruments [Line Items]
Debt	470,000	425,000
Notes | Fair Value
Fair Value Of Instruments [Line Items]
Debt	460,600	429,250
Accounts receivable facility | Carrying Value
Fair Value Of Instruments [Line Items]
Debt	75,000	0
Other Debt | Carrying Value
Fair Value Of Instruments [Line Items]
Debt	764	808
Letter of Credit | Carrying Value
Fair Value Of Instruments [Line Items]
Debt	$ 6,069	$ 6,229