Goodwill and Intangible Assets, Net (Identifiable Intangible Asset Balances) (Details) - USD ($) $ in Thousands	Apr. 02, 2017	Jan. 01, 2017
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Net amortizable intangible assets	$ 384,544	$ 349,640
Intangible assets, net	455,128	420,224
Patents [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	39,906	39,901
Less: Accumulated amortization	(33,071)	(32,408)
Net amortizable intangible assets	6,835	7,493
Trade Names And Trademarks [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	43,371	40,086
Less: Accumulated amortization	(24,990)	(24,017)
Net amortizable intangible assets	18,381	16,069
Trade names and trademarks	70,584	70,584
Licensing Agreements [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	50,804	57,767
Less: Accumulated amortization	(40,279)	(46,507)
Net amortizable intangible assets	10,525	11,260
Core Technology [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	292,252	304,187
Less: Accumulated amortization	(222,371)	(233,720)
Net amortizable intangible assets	69,881	70,467
Customer Relationships [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	411,165	383,303
Less: Accumulated amortization	(207,297)	(213,062)
Net amortizable intangible assets	203,868	170,241
In-process Research and Development [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	79,698	78,515
Less: Accumulated amortization	(4,644)	(4,405)
Net amortizable intangible assets	$ 75,054	$ 74,110