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Other Comprehensive Income (Components Of Accumulated Other Comprehensive Income) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 29, 2012
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]    
Foreign currency translation adjustment $ 15,960 $ 14,189
Net unrealized loss on derivative instruments, net of tax (842) (470)
Accumulated other comprehensive income $ 15,118 $ 13,719