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Intangible Assets - Other Intangible Assets (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2017
Dec. 30, 2016
Intangible Assets, Net (Excluding Goodwill) [Abstract]    
Total Cost $ 251,553 $ 246,353
Total Accumulated Amortization (55,274) (48,024)
Total Foreign Currency Translation (12,396) (19,993)
Total Book Value 183,883 178,336
Trade Names    
Indefinite Life    
Cost 57,853 57,853
Foreign currency translation (2,749) (5,249)
Book value 55,104 52,604
Customer Relationships    
Finite Life    
Cost 174,884 170,284
Accumulated amortization (47,840) (41,599)
Foreign currency translation (8,926) (13,630)
Book value $ 118,118 $ 115,055
Weighted average life 13 years 13 years
Patents and Proprietary Technology    
Finite Life    
Cost $ 17,921 $ 17,321
Accumulated amortization (6,994) (6,088)
Foreign currency translation (660) (1,055)
Book value $ 10,267 $ 10,178
Weighted average life 10 years 10 years
Trademarks, Trade Names and Other    
Finite Life    
Cost $ 895 $ 895
Accumulated amortization (440) (337)
Foreign currency translation (61) (59)
Book value $ 394 $ 499
Weighted average life 4 years 4 years