Goodwill and Acquired Intangibles (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015
Finite-Lived Intangible Assets [Line Items]
In-process technology transferred to existing technology	$ 1,600
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross carrying amount	513,071	$ 514,146
Accumulated amortization	(216,589)	(154,814)
Acquired intangibles, net	296,482	359,332
In-process technology		1,600
Intangible Assets, Gross (Excluding Goodwill)		515,746
Intangible Assets, Net (Excluding Goodwill)	296,482	360,932
Existing technology [Member]
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross carrying amount	329,627	328,325
Accumulated amortization	(124,097)	(84,822)
Acquired intangibles, net	205,530	243,503
Agreements and relationships [Member]
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross carrying amount	173,325	175,202
Accumulated amortization	(86,808)	(65,512)
Acquired intangibles, net	86,517	109,690
Tradenames, trademarks and patents [Member]
Acquired intangibles with finite lives, excluding intangibles fully amortized at end of prior fiscal year
Gross carrying amount	10,119	10,619
Accumulated amortization	(5,684)	(4,480)
Acquired intangibles, net	$ 4,435	$ 6,139