Share Repurchases (Details) $ / shares in Units, shares in Millions	9 Months Ended
	Oct. 28, 2017 USD ($) $ / shares shares
Equity [Abstract]
Authorized share repurchase amount	$ 300,000,000
Stock repurchased during period (in shares) | shares	2.5
Stock repurchased during period	$ 25,700,000
Stock repurchased during period, average cost per share (in dollars per share) | $ / shares	$ 10.28
Amount remaining under stock repurchase program	$ 137,900,000