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Other Income (Expense)-Net (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Other Income (Expense)-Net      
Interest income $ 889 $ 350 $ 1,503
Equity in the earnings of joint venture, net of tax 972 1,027 1,382
Currency (losses) gains 5,565 (20,744) 5,227
Royalty income 676 475 462
Other gains 440 851 341
Other income (expense) - net $ 8,542 $ (18,041) $ 8,915