Payment Of Dividends (Parenthetical) (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended			3 Months Ended					9 Months Ended
	Aug. 27, 2014	May 28, 2014	Feb. 27, 2014	Nov. 01, 2014	Aug. 02, 2014	May 03, 2014	Feb. 01, 2014	Nov. 02, 2013	Nov. 01, 2014	Nov. 02, 2013
Dividends, Cash [Abstract]
Dividend paid	$ 14.4	$ 14.4	$ 12.0	$ 14.4				$ 12.1	$ 40.8	$ 34.0
Dividend declared				$ 0.18	$ 0.18	$ 0.18	$ 0.15	$ 0.15	$ 0.54	$ 0.45
Other current liabilities reflecting dividend				$ 14.4					$ 14.4
Dividend record date									Oct. 31, 2014
Dividend payment date									Nov. 25, 2014