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Face (par) amount of debt instrument at time of issuance.

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DEBT - Credit Facilities, Narrative (Details) $ in Thousands		1 Months Ended			3 Months Ended			12 Months Ended
	Feb. 02, 2019 USD ($)	Oct. 31, 2018 USD ($)	Apr. 30, 2018 USD ($)	Oct. 28, 2017 USD ($)	Nov. 03, 2018 USD ($)	Aug. 04, 2018 USD ($)	May 05, 2018 USD ($)	Feb. 02, 2019 USD ($) agreement	Feb. 03, 2018 USD ($)	Jan. 28, 2017 USD ($)	Jun. 18, 2014 USD ($)
Debt
(Loss) gain on extinguishment of debt					$ (9,400)	$ (8,100)	$ (11,900)	$ (30,253)	$ 5,445	$ 1,737
Senior Notes
Debt
Aggregate principal amount of debt issued	$ 600,000							600,000			$ 600,000
(Loss) gain on extinguishment of debt								$ (8,900)
Senior Notes \| Upon the occurrence of certain specific changes of control
Debt
Redemption price as a percentage of the principal amount of debt								101.00%
2014 Credit Facilities \| Original Term Loan
Debt
Aggregate principal amount of debt issued											1,100,000
Prepayment			$ 93,400
Aggregrate outstanding principal amount refinanced			$ 900,000
Unamortized OID									$ 3,000		11,000
2014 Credit Facilities \| Original Term Loan \| LIBOR
Debt
Margin added to Base rate (as a percent)			3.50%
Floor rate (as a percent)			1.00%
2014 Credit Facilities \| Amended ABL Facility
Debt
Credit facility				$ 550,000
2014 Credit Facilities \| ABL Facility
Debt
Credit facility											$ 500,000
Variable Rate Interest Rate \| Original Term Loan
Debt
Aggregate principal amount of debt issued			$ 593,400
Fixed Rate Interest Rate \| Original Term Loan
Debt
Aggregate principal amount of debt issued			$ 400,000
Fixed rate on refinanced amount (as a percent)			5.00%
2018 Credit Facilities \| Original Term Loan
Debt
(Loss) gain on extinguishment of debt								$ (11,900)
2018 Credit Facilities \| Amended New Term Loan
Debt
Reduction in the interest rate margin								0.25%
Total variable interest rate (as a percent)	5.76%							5.76%
Number of interest rate swap agreements \| agreement								2
Deferred financing costs		$ 1,100
Weighted average interest rate (as a percent)	5.77%							5.77%
Unamortized OID	$ 0							$ 0
2018 Credit Facilities \| Amended New Term Loan \| LIBOR
Debt
Margin added to Base rate (as a percent)	3.25%	3.25%
Actual LIBOR rate (as a percent)	2.51%							2.51%
2018 Credit Facilities \| Amended New Term Loan \| Base Rate
Debt
Margin added to Base rate (as a percent)		2.25%
2018 Credit Facilities \| Amended New Term Loan \| Interest rate swap
Debt
Notional amount of interest rate swaps	$ 715,000							$ 715,000
Percentage of variable interest rate converted to a fixed rate	80.00%
2018 Credit Facilities \| New Term Loan
Debt
Aggregate principal amount of debt issued			$ 900,000
Uncommitted borrowings	$ 250,000							$ 250,000
Secured leverage ratio	2.5							2.5
Amortized percentage	1.00%							1.00%
Deferred financing costs			5,600
(Loss) gain on extinguishment of debt		$ (9,400)
Unamortized OID			$ 4,500
2018 Credit Facilities \| New Term Loan \| LIBOR
Debt
Floor rate (as a percent)	1.00%							1.00%
2018 Credit Facilities \| New Term Loan \| Base Rate
Debt
Floor rate (as a percent)	2.00%							2.00%
Amended ABL Facility [Member] \| Amended ABL Facility
Debt
Weighted average interest rate (as a percent)	3.90%							3.90%
Credit facility				550,000
Total credit facility with expansion feature				$ 650,000
Amended ABL Facility [Member] \| Amended ABL Facility \| Line of Credit
Debt
Letters of credit issued and outstanding	$ 38,900							$ 38,900
Amended ABL Facility [Member] \| Amended ABL Facility \| LIBOR
Debt
Margin added to Base rate (as a percent)				1.00%
Period for variable rate basis				1 month
Amended ABL Facility [Member] \| Amended ABL Facility \| Federal funds rate
Debt
Margin added to Base rate (as a percent)				0.50%
Amended ABL Facility [Member] \| Amended ABL Facility \| Minimum
Debt
Fees on amounts available to be drawn (as a percent)				1.25%
Fees on unused commitments (as a percent)				0.25%
Amended ABL Facility [Member] \| Amended ABL Facility \| Maximum
Debt
Varying interest rate margin (as a percent)				1.75%
Fees on amounts available to be drawn (as a percent)				1.75%
Maximum borrowing outstanding under the ABL Facility during the period								104,500
Amended ABL Facility [Member] \| ABL Facility
Debt
Borrowings available under credit facility	$ 407,700							$ 407,700