Other Expense (Income), Net Schedule of Other Expense (Income), Net (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 29, 2015
Mar. 30, 2014
Other Income and Expenses [Abstract]    
Amortization of intangibles/other $ 3,362 $ 4,175
Unrealized foreign exchange losses 2,279 0
Royalty income and other (240) (192)
Total other expense (income), net $ 5,401 $ 3,983