Stock Repurchase Program - Summary of Stock Repurchases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		127 Months Ended
	Oct. 28, 2018	Oct. 29, 2017	Oct. 28, 2018	Oct. 29, 2017	Oct. 28, 2018
Equity, Class of Treasury Stock [Line Items]
Shares repurchased under the stock repurchase program, shares	536,680	0	1,677,433	312,304
Shares repurchased under the stock repurchase program, value	$ 30,000	$ 0	$ 79,738	$ 10,389	$ 231,100
Stock Repurchase Program WIth No Expiration Date [Member]
Equity, Class of Treasury Stock [Line Items]
Shares repurchased under the stock repurchase program, shares	536,680	0	1,677,433	312,304
Shares repurchased under the stock repurchase program, value	$ 30,000	$ 0	$ 79,738	$ 10,389