Bank Credit Facility (Details) - 2011 Credit Agreement [Member] - USD ($) $ in Millions	1 Months Ended	6 Months Ended
	May. 30, 2015	Aug. 01, 2015	May. 28, 2015
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 700.0
Debt Instrument, Term	5 years
Deferred Finance Costs, Gross			$ 0.8
Line of Credit Facility, Swing Loan Sublimit		$ 30.0
Line of Credit Facility, Letter of Credit Sublimit		150.0
Line of Credit Facility, Amount Outstanding		223.2
Line of Credit Facility, Letters of Credit Outstanding		21.2
Line of Credit Facility, Remaining Borrowing Capacity		$ 455.6