Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Emico Acquisition (Details) - USD ($) $ in Thousands	Jul. 02, 2016	May 20, 2016	Jan. 02, 2016
Business Acquisition [Line Items]
Goodwill	$ 1,051,954		$ 983,339
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		$ 2,559
Emico [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets		746
Goodwill		1,816
Current liabilities		(934)
Other non-current liabilities		(628)
Consideration paid at closing		1,000
Business Acquisition, Deferred Payments		$ 1,559