Derivative Financial Instruments - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended
	Apr. 30, 2011	May. 03, 2014	Aug. 02, 2014	Aug. 01, 2015	Aug. 31, 2014
Derivative [Line Items]
Reclassification of unrealized losses, net of tax recorded in accumulated other comprehensive loss		$ 22,000,000	$ 22,380,000
Interest Rate Swap
Derivative [Line Items]
Aggregate notional amount of interest rate derivative	$ 600,000,000			$ 400,000,000
Interest rate derivative, fixed interest rate	3.56%
Interest rate derivative, expiration date	Mar. 31, 2016
Derivative instrument reduction in notional amount	$ 100,000,000
Interest expense		$ 500,000
Interest Rate Caps And Swaps March 2015 To March 2016
Derivative [Line Items]
Aggregate notional amount of interest rate derivative					$ 400,000,000
Interest Rate Caps And Swaps March 2015 To March 2016 | LIBOR Borrowings Based on Group's average historical excess availability
Derivative [Line Items]
Interest rate cap agreements, cap LIBOR					2.00%
Interest Rate Cap And Swap March2016 To March2019
Derivative [Line Items]
Aggregate notional amount of interest rate derivative					$ 800,000,000
Interest Rate Cap And Swap March2016 To March2019 | Interest Rate Swap
Derivative [Line Items]
Interest rate derivative, fixed interest rate					2.56%