Basis of Presentation (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 28, 2017	Oct. 29, 2016	Oct. 28, 2017	Oct. 29, 2016	Feb. 03, 2018	Jan. 28, 2017
Fiscal Year [Line Items]
Fiscal Period Duration	91 days	91 days	273 days	273 days	371 days	364 days
Share-based Arrangements with Employees and Nonemployees [Abstract]
Share-based compensation, excess tax deficiency from vesting	$ 0.1		$ 2.1
Length of some fiscal years | Minimum
Fiscal Year [Line Items]
Fiscal Period Duration			364 days
Length of some fiscal years | Maximum
Fiscal Year [Line Items]
Fiscal Period Duration			371 days