Goodwill and Other Intangible Assets Amortization Expense (Details) - USD ($) $ in Thousands	6 Months Ended
	Jul. 03, 2016	Jun. 28, 2015
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 7,580	$ 5,125
Patents, Trademarks and Other
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	2,292	1,904
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	1,701	1,332
Developed Technology
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	3,434	1,753
In-Process Research and Development
Finite-Lived Intangible Assets [Line Items]
Total amortization expense	$ 153	$ 136