Goodwill and Intangible Assets-Intangibles (Details 2) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 27, 2015	Dec. 28, 2014
Intangible Assets
Total intangible assets, gross	$ 741,660,000	$ 858,844,000
Accumulated amortization	(337,382,000)	(316,493,000)
Impairment of acquisition-related intangible assets	(61,000,000)
Total intangible assets, net	343,278,000	542,351,000
Acquired in-process research and development [Member]
Intangible Assets
Indefinite-lived Intangible Assets Acquired	61,000,000	61,000,000
Impairment of acquisition-related intangible assets	(61,000,000)
Net carrying amount, indefinite-lived intangible assets	0	61,000,000
Developed product technology [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	451,560,000	568,744,000
Accumulated amortization	(174,693,000)	(209,478,000)
Impairment of acquisition-related intangible assets	0
Total intangible assets subject to amortization	276,867,000	359,266,000
Customer relationships [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	64,600,000	64,600,000
Accumulated amortization	(51,934,000)	(21,009,000)
Impairment of acquisition-related intangible assets	0
Total intangible assets subject to amortization	12,666,000	43,591,000
Trademarks [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	62,500,000	62,500,000
Accumulated amortization	(17,088,000)	(7,395,000)
Impairment of acquisition-related intangible assets	0
Total intangible assets subject to amortization	45,412,000	55,105,000
Technology licenses and patents [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	102,000,000	102,000,000
Accumulated amortization	(93,667,000)	(78,611,000)
Impairment of acquisition-related intangible assets	0
Total intangible assets subject to amortization	8,333,000	23,389,000
Acquisition-related Intangible Assets [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	578,660,000	695,844,000
Accumulated amortization	(243,715,000)	(237,882,000)
Impairment of acquisition-related intangible assets	0
Total intangible assets subject to amortization	334,945,000	457,962,000
Intangible assets subject to amortization [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	680,660,000	797,844,000
Accumulated amortization	(337,382,000)	(316,493,000)
Impairment of acquisition-related intangible assets	0
Total intangible assets subject to amortization	$ 343,278,000	$ 481,351,000