Stock Repurchase Program - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended		124 Months Ended
	Jul. 29, 2018	Jul. 30, 2017	Jul. 29, 2018	Jul. 30, 2017	Jul. 29, 2018	May 24, 2018
Equity, Class of Treasury Stock [Line Items]
Additional stock repurchase amount authorized						$ 250,000,000.0
Shares repurchased under the stock repurchase program, value	$ 24,413,000	$ 428,000	$ 49,738,000	$ 10,389,000	$ 201,100,000
Remaining authorization under stock repurchase program	$ 247,300,000		$ 247,300,000		$ 247,300,000