Summary Of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Aug. 30, 2014	Aug. 24, 2013
Summary Of Significant Accounting Policies [Line Items]
Reimbursements received from clients for "out-of-pocket" expenses	$ 2.2	$ 2.0
Stock Incentive Plan 2004 [Member]
Summary Of Significant Accounting Policies [Line Items]
Stock options vesting period	4 years