Stock Repurchase Program - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended			106 Months Ended
	Jan. 29, 2017	Jan. 31, 2016	Jan. 25, 2015	Jan. 29, 2017
Equity [Abstract]
Repurchased shares of common stock, cost	$ 1,005	$ 57,311	$ 40,906	$ 136,700
Remaining authorization under stock repurchase program	$ 61,700			$ 61,700