Derivative Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 01, 2014 instrument	Nov. 02, 2013 instrument	Nov. 01, 2014 instrument	Nov. 02, 2013 instrument	Feb. 01, 2014 instrument
Derivative Financial Instruments
Number of derivative financial instruments with credit-risk-related contingent features	0	0	0	0	0
Pre-tax gain (loss) on derivatives within cost of sales	$ 0.8	$ (0.7)	$ 0.3	$ 0.5