Stockholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016	Dec. 31, 2015
Equity [Abstract]
Shares authorized to purchase under stock repurchase program, value			$ 70,000,000
Share repurchase program completion date	Jan. 28, 2017
Number of shares repurchased under share repurchase program	0	600,000