Goodwill and Intangible Assets, Net (Identifiable Intangible Asset Balances) (Details) - USD ($) $ in Thousands	Jul. 02, 2017	Jan. 01, 2017
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Net amortizable intangible assets	$ 382,475	$ 349,640
Intangible assets, net	453,059	420,224
Patents [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	39,930	39,901
Less: Accumulated amortization	(33,758)	(32,408)
Net amortizable intangible assets	6,172	7,493
Trade Names And Trademarks [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	43,900	40,086
Less: Accumulated amortization	(26,135)	(24,017)
Net amortizable intangible assets	17,765	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	50,983	57,767
Less: Accumulated amortization	(41,111)	(46,507)
Net amortizable intangible assets	9,872	11,260
Core Technology [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	295,956	304,187
Less: Accumulated amortization	(229,848)	(233,720)
Net amortizable intangible assets	66,108	70,467
Customer Relationships [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	422,291	383,303
Less: Accumulated amortization	(219,052)	(213,062)
Net amortizable intangible assets	203,239	170,241
In-process Research and Development [Member]
Finite and Indefinite Lived Intangible Assets by Major Class [Line Items]
Gross amortizable intangible assets	84,252	78,515
Less: Accumulated amortization	(4,933)	(4,405)
Net amortizable intangible assets	$ 79,319	$ 74,110