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FAIR VALUE OF FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Schedule of Fair Values of Financial Instruments (Details) - USD ($)	Oct. 03, 2020	Sep. 24, 2020	Dec. 31, 2019	Nov. 16, 2018	Apr. 12, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 3,592,902,000		$ 3,182,524,000
Debt instrument, interest rate, stated percentage	6.125%
8.00% senior notes due April 2026
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 645,000,000		645,000,000
Fair Value	$ 675,638,000		$ 670,800,000
Debt instrument, interest rate, stated percentage	8.00%		8.00%	8.00%	8.00%
6.125% senior notes due January 2029
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 500,000,000		$ 0
Fair Value	$ 505,000,000		$ 0
Debt instrument, interest rate, stated percentage	6.125%	6.125%	6.125%
ABL Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 0
Cash Flow Revolver
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	0
Term Loan Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	2,504,372,000		$ 2,523,587,000
Fair Value	$ 2,479,328,000		$ 2,514,906,000