Derivative Instruments and Hedging Activities (Details) (Interest rate swaps, Designated as Hedging Instrument, USD $)	Jan. 30, 2015	Jan. 31, 2014
Notes payable and long-term debt, net of current portion
Derivative [Line Items]
Notes payable and long-term debt, net of current portion	$ 17,000,000	$ 0
Notes payable and long-term debt, net of current portion | Notes Which Mature In December 2020
Derivative [Line Items]
Hedged instrument, face amount	450,000,000
Stated interest rate	4.45%
Other assets
Derivative [Line Items]
Other assets	$ 17,000,000	$ 0