Derivative Instruments (Pre-Tax Income/(Expense) Effect Of Derivative Instruments On The Consolidated Statements Of Income) (Details) (Cash Flow Hedges [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Derivative [Line Items]
Total net pre-tax expense from derivative instruments	$ (170)	$ (2,128)
Interest Rate Swaps [Member] | Interest Expense [Member]
Derivative [Line Items]
Total net pre-tax expense from derivative instruments	(753)	(2,300)
Foreign Currency Forwards [Member] | Net Revenue [Member]
Derivative [Line Items]
Total net pre-tax expense from derivative instruments	631	201
Foreign Currency Forwards [Member] | Other Expense [Member]
Derivative [Line Items]
Total net pre-tax expense from derivative instruments	$ (48)	$ (29)