LONG-TERM DEBT - Long Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Carrying value of debt	$ 1,930,262	$ 1,891,774
Long-term debt	1,921,115	1,880,362
Deferred financing costs (excludes the revolving credit)	(9,147)	(11,412)
Outstanding standby letters of credit	7,488	5,909
Credit Facility
Debt Instrument [Line Items]
Plus unamortized premium	975	1,116
Long-term debt	852,390	813,531
Credit Facility \| Revolver
Debt Instrument [Line Items]
Carrying value of debt	219,000	180,000
Credit Facility \| Term B-2 Loan, due November 17, 2024
Debt Instrument [Line Items]
Carrying value of debt	632,415	632,415
Senior Notes \| 6.500% notes due May 1, 2027
Debt Instrument [Line Items]
Carrying value of debt	460,000	460,000
Plus unamortized premium	2,849	3,220
Long-term debt	$ 462,849	463,220
Debt instrument, stated percentage (percent)	6.50%
Senior Notes \| 6.750% notes due March 31, 2029
Debt Instrument [Line Items]
Carrying value of debt	$ 540,000	540,000
Long-term debt	$ 540,000	540,000
Debt instrument, stated percentage (percent)	6.75%
Accounts receivable facility
Debt Instrument [Line Items]
Carrying value of debt	$ 75,000	75,000
Other debt
Debt Instrument [Line Items]
Long-term debt	$ 23	$ 23

Debt Issuance Cost, Net, Excluding Revolving Credit

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