Shareholders' Equity (Details 2) (Long-Term Stock Incentive Plan, USD $)	12 Months Ended
	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
Shareholders Equity
Share awards available for issuance	1,300,000
Additional grants available under the previous plans (in shares)	0
Restricted share
Number of Shares
Restricted shares outstanding at beginning of fiscal year	487,500	497,500	780,500
Restricted shares granted			40,000
Restricted shares vested, including restricted shares repurchased from employees for employees' tax liability	(487,500)		(273,000)
Restricted shares forfeited		(10,000)	(50,000)
Restricted shares outstanding at end of fiscal year		487,500	497,500
Weighted-average grant date fair value
Restricted shares outstanding at beginning of fiscal year (in dollars per share)	$ 12	$ 12	$ 16
Restricted shares granted (in dollars per share)			$ 23
Restricted shares vested, including restricted shares repurchased from employees for employees' tax liability (in dollars per share)	$ 12		$ 22
Restricted shares forfeited (in dollars per share)		$ 23	$ 17
Restricted shares outstanding at end of fiscal year (in dollars per share)		$ 12	$ 12
Restricted share | Minimum
Shareholders Equity
Vesting period	3 years
Restricted share | Maximum
Shareholders Equity
Vesting period	4 years
Performance shares
Number of Shares
Restricted shares granted	100,000	100,000
Restricted share units
Number of Shares
Restricted shares outstanding at beginning of fiscal year
Restricted shares granted	59,129
Restricted shares vested, including restricted shares repurchased from employees for employees' tax liability
Restricted shares forfeited	(2,608)
Restricted shares outstanding at end of fiscal year	56,521
Weighted-average grant date fair value
Restricted shares outstanding at beginning of fiscal year (in dollars per share)
Restricted shares granted (in dollars per share)	$ 47
Restricted shares vested, including restricted shares repurchased from employees for employees' tax liability (in dollars per share)
Restricted shares forfeited (in dollars per share)	$ 43
Restricted shares outstanding at end of fiscal year (in dollars per share)	$ 47
Restricted share units earned by recipients, which will vest in March 2016	0	100,000