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LONG-TERM DEBT - Refinancing Activities, Narrative (Details) - USD ($) $ in Millions				3 Months Ended		6 Months Ended
	Feb. 11, 2021	Oct. 22, 2020	Oct. 22, 2018	Jan. 30, 2021	Oct. 31, 2020	Jan. 30, 2021
Debt Instrument [Line Items]
Debt maturity, extension period					3 years
First Term Loan Amendment | London interbank offered rate (LIBOR) | Secured debt
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				4.25%
First Term Loan Amendment | London interbank offered rate (LIBOR) | Subsequent event | Secured debt
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.50%
First Term Loan Amendment | Base rate | Secured debt
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				3.25%
First Term Loan Amendment | Base rate | Subsequent event | Secured debt
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	2.50%
Term Loan Facility
Debt Instrument [Line Items]
Voluntary repayments of debt				$ 150.0
Senior Notes due 2028, 6.750% | Senior notes
Debt Instrument [Line Items]
Debt instrument, term					8 years
ABL Credit Facility
Debt Instrument [Line Items]
Voluntary repayments of debt					$ 36.0
Term Loan Facility, Term B Tranche | Secured debt
Debt Instrument [Line Items]
Debt instrument, term			7 years
Term Loan Facility, Term B Tranche | London interbank offered rate (LIBOR) | Secured debt
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				4.25%
Term Loan Facility, Term B Tranche | Base rate | Secured debt
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				3.25%
Secured debt | Term Loan Facility
Debt Instrument [Line Items]
Write off of unamortized debt issuance costs				$ 5.7
Repayments of debt					108.0
Required prepayments of debt					72.0
Secured debt | Term Loan Facility, Term B Tranche
Debt Instrument [Line Items]
Write off of unamortized debt issuance costs				12.0
Repayments of debt		$ 500.0			500.0	$ 758.0
Required prepayments of debt					$ 72.0
Write off of unamortized debt issue discount				$ 11.8

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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