Share-Based Compensation Plans (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 02, 2014	Aug. 03, 2013	Aug. 02, 2014	Aug. 03, 2013
Share-Based Compensation Plans
Share-based compensation expense	$ 4.0	$ 4.6	$ 8.0	$ 9.1
Non-Vested Deferred Stock Units and Restricted Stock Shares
Unrecognized compensation cost
Unrecognized compensation cost	$ 13.2		$ 13.2
Compensation recognition period			1 year 2 months 12 days
Deferred stock units | Minimum
Weighted-Average Grant-Date Fair Value
Vesting period			1 year
Deferred stock units | Maximum
Weighted-Average Grant-Date Fair Value
Vesting period			3 years
Deferred stock units | Time-Based
Shares
Non-Vested at the beginning of the period (in shares)			573,042
Granted (in shares)			218,231
Vested (in shares)			(414,233)
Forfeited (in shares)			(19,110)
Non-Vested at the end of the period (in shares)	357,930		357,930
Weighted-Average Grant-Date Fair Value
Balance at the beginning of the period (in dollars per share)			$ 32.95
Granted (in dollars per share)			$ 47.26
Vested (in dollars per share)			$ 32.73
Forfeited (in dollars per share)			$ 35.66
Balance at the end of the period (in dollars per share)	$ 41.79		$ 41.79
Shares relinquished for tax withholding			140,793
Deferred stock units | Time-Based | Awards granted prior to April 3, 2013
Shares
Non-Vested at the end of the period (in shares)	36,137		36,137
Deferred stock units | Performance-Based
Shares
Non-Vested at the beginning of the period (in shares)			82,558
Granted (in shares)			18,789
Vested (in shares)			(1,134)
Non-Vested at the end of the period (in shares)	100,213		100,213
Weighted-Average Grant-Date Fair Value
Balance at the beginning of the period (in dollars per share)			$ 33.09
Granted (in dollars per share)			$ 47.26
Vested (in dollars per share)			$ 33.09
Balance at the end of the period (in dollars per share)	$ 35.75		$ 35.75
Deferred stock units | Performance-Based | 2014
Weighted-Average Grant-Date Fair Value
Number of shares of common stock received for each performance share			1
Vesting period			1 year
Period after which unvested awards will lapse			1 year
Deferred stock units | Performance-Based | 2013
Weighted-Average Grant-Date Fair Value
Number of shares of common stock received for each performance share			1
Vesting percentage of awards in tranches			33.00%
Vesting period			3 years
Restricted Stock
Shares
Non-Vested at the beginning of the period (in shares)			80,919
Granted (in shares)			7,100
Vested (in shares)			(33,833)
Non-Vested at the end of the period (in shares)	54,186		54,186
Weighted-Average Grant-Date Fair Value
Balance at the beginning of the period (in dollars per share)			$ 31.36
Granted (in dollars per share)			$ 49.28
Vested (in dollars per share)			$ 34.35
Balance at the end of the period (in dollars per share)	$ 32.76		$ 32.76