Stockholders' Equity (Stock Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014	Jan. 31, 2009
Number of shares
Granted (in shares)	0	0	0
Stock Options [Member]
Number of shares
Outstanding at beginning of period (in shares)	1,038,000
Granted (in shares)	0
Exercised (in shares)	(728,000)
Forfeited (in shares)	0
Outstanding at end of period (in shares)	310,000	1,038,000
Weighted average exercise price
Outstanding at beginning of period, Weighted average exercise price (in dollars per share)	$ 7.05
Granted (in dollars per share)	0.00
Exercised (in dollars per share)	6.92
Forfeited (in dollars per share)	0.00
Outstanding at end of period, all vested, Weighted average exercise price (in dollars per share)	$ 7.34	$ 7.05
Weighted average remaining contractual term	6 months 18 days
Aggregate intrinsic value	$ 15,168
2008 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Initial share reserve				33,000,000
Full value awards				24,000,000