Goodwill and Other Intangible Assets (Details 3) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Intangible asset amortization expense
Pre-tax amortization expense associated with intangible assets	$ 3.4	$ 3.5	$ 10.5	$ 6.5
Pre-tax amortization expense estimated for the remainder of fiscal year 2015	3.9		3.9
Pre-tax amortization expense estimated for fiscal year 2016	13.7		13.7
Pre-tax amortization expense estimated for fiscal year 2017	13.2		13.2
Pre-tax amortization expense estimated for fiscal year 2018	12.8		12.8
Pre-tax amortization expense estimated for fiscal year 2019	$ 12.6		$ 12.6