Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 28, 2016	Oct. 30, 2015	Oct. 28, 2016	Oct. 30, 2015
Earnings Per Share [Abstract]
Net loss	$ (7,718)	$ (18,528)	$ (31,396)	$ (57,482)
Weighted average number of shares outstanding, basic and diluted (in shares)	80,009	70,000	76,783	70,000
Loss per common share, basic and diluted (usd per share)	$ (0.10)	$ (0.26)	$ (0.41)	$ (0.82)
Weighted-average anti-dilutive stock options, non-vested restricted stock and restricted stock units (in shares)	4,899	0	3,432	0