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Intangible Assets - Other Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 30, 2018
Dec. 29, 2017
Intangible Assets, Net (Excluding Goodwill) [Abstract]    
Total Cost $ 263,253 $ 258,929
Total Accumulated Amortization (66,432) (62,413)
Total Foreign Currency Translation (9,998) (13,460)
Total Book Value 186,823 183,056
Trade Names    
Indefinite Life    
Cost 61,237 59,553
Foreign currency translation (2,425) (3,486)
Book value 58,812 56,067
Customer Relationships    
Finite Life    
Cost 181,143 179,826
Accumulated amortization (57,497) (54,076)
Foreign currency translation (6,983) (9,186)
Book value $ 116,663 $ 116,564
Weighted average life in years 13 years 13 years
Patents and Proprietary Technology    
Finite Life    
Cost $ 19,802 $ 18,479
Accumulated amortization (8,327) (7,795)
Foreign currency translation (529) (727)
Book value $ 10,946 $ 9,957
Weighted average life in years 10 years 10 years
Trademarks, Trade Names and Other    
Finite Life    
Cost $ 1,071 $ 1,071
Accumulated amortization (608) (542)
Foreign currency translation (61) (61)
Book value $ 402 $ 468
Weighted average life in years 4 years 4 years