Stock Repurchase Program - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended		127 Months Ended
	Oct. 28, 2018	Oct. 29, 2017	Oct. 28, 2018	Oct. 29, 2017	Oct. 28, 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	$ 30,000,000	$ 0	$ 79,738,000	$ 10,389,000	$ 231,100,000
Remaining authorization under stock repurchase program	$ 217,300,000		$ 217,300,000		$ 217,300,000