Summary of Significant Accounting Policies - Reconciliation of Denominator of Each Net Income (Loss) per Share Calculation (Details) - shares	3 Months Ended		6 Months Ended
	Aug. 01, 2015	Aug. 02, 2014	Aug. 01, 2015	Aug. 02, 2014
Accounting Policies [Abstract]
Shares used in computing basic net (loss) income per share	69,819,615	69,069,770	69,625,420	68,989,675
Dilutive effect of options, restricted stock and convertible preferred stock	75,000	4,127,000	2,223,000	0
Shares used in computing diluted net (loss) income per share	69,894,694	73,197,282	71,847,929	68,989,675