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Goodwill and Other Intangible Assets Intangible Assets (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 03, 2016
Dec. 31, 2015
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, accumulated amortization $ (41,508) $ (36,849)
Total intangible assets, net 64,996 35,943
Patents, trademarks and other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross 25,754 24,278
Finite-lived intangible assets, accumulated amortization (15,257) (13,923)
Total intangible assets, net 10,497 10,355
Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross 28,922 21,245
Finite-lived intangible assets, accumulated amortization (9,226) (8,083)
Total intangible assets, net 19,696 13,162
Developed Technology    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross 33,533 22,155
Finite-lived intangible assets, accumulated amortization (12,577) (10,517)
Total intangible assets, net 20,956 11,638
In-Process Research and Development    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross 15,850 2,669
Finite-lived intangible assets, accumulated amortization (2,003) (1,881)
Total intangible assets, net 13,847 788
Other Intangible Assets [Member]    
Finite-Lived Intangible Assets [Line Items]    
Finite-lived intangible assets, gross $ 2,400 $ 2,400
DCG Systems [Member] [Member] | Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 10 years  
DCG Systems [Member] [Member] | In-Process Research and Development    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 3 years  
Minimum [Member] | Patents, trademarks and other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 6 months  
Minimum [Member] | Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 5 years  
Minimum [Member] | Developed Technology    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 2 years  
Minimum [Member] | In-Process Research and Development    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 3 years  
Minimum [Member] | DCG Systems [Member] [Member] | Developed Technology    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 2 years  
Maximum [Member] | Patents, trademarks and other [Member]    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 10 years  
Maximum [Member] | Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 10 years  
Maximum [Member] | Developed Technology    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 10 years  
Maximum [Member] | In-Process Research and Development    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 5 years 6 months  
Maximum [Member] | DCG Systems [Member] [Member] | Developed Technology    
Finite-Lived Intangible Assets [Line Items]    
Estimated Useful Life 4 years