Stock Repurchase Program - Summary of Stock Repurchases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		124 Months Ended
	Jul. 29, 2018	Jul. 30, 2017	Jul. 29, 2018	Jul. 30, 2017	Jul. 29, 2018
Equity, Class of Treasury Stock [Line Items]
Shares repurchased under the stock repurchase program, shares	495,609	12,304	1,140,753	312,304
Shares repurchased under the stock repurchase program, value	$ 24,413	$ 428	$ 49,738	$ 10,389	$ 201,100
Stock Repurchase Program WIth No Expiration Date [Member]
Equity, Class of Treasury Stock [Line Items]
Shares repurchased under the stock repurchase program, shares	495,609	12,304	1,140,753	312,304
Shares repurchased under the stock repurchase program, value	$ 24,413	$ 428	$ 49,738	$ 10,389