Acquisitions and Purchase Accounting Estimated Fair Values of Assets Acquired and Liabilities Assumed for Induc Acquisition (Details) - USD ($) $ in Thousands	Jul. 04, 2015	May. 30, 2015	Jan. 03, 2015
Business Acquisition [Line Items]
Goodwill	$ 833,382		$ 808,491
Business Combination, Contingent Consideration	$ 7,234		$ 7,053
as initially reported | Induc [Member]
Business Acquisition [Line Items]
Current assets		$ 1,705
Property, plant and equipment		536
Goodwill		13,496
Other intangibles		1,500
Other asset		32
Current liabilities		(854)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other		(5,793)
Consideration paid at closing		10,622
Business Acquisition, Deferred Payments		1,516
Business Combination, Contingent Consideration		4,276
Net assets acquired and liabilities assumed		$ 16,414