Goodwill and Intangible Assets-Intangibles (Details 2) (USD $)	12 Months Ended
Dec. 28, 2014	Dec. 29, 2013
Intangible Assets
Total intangible assets, gross	$ 858,844,000sndk_TotalIntangibleAssetsGross	$ 562,744,000sndk_TotalIntangibleAssetsGross
Accumulated amortization	(316,493,000)	(231,612,000)
Intangible asset adjustment		(83,228,000)sndk_IntangibleAssetAdjustment
Total intangible assets, net	542,351,000	247,904,000
Acquired in-process research and development [Member]
Intangible Assets
Indefinite-lived Intangible Assets Acquired	61,000,000	42,500,000
Adjustments of indefinite lived intangible assets		(36,200,000)
Net carrying amount, indefinite-lived intangible assets	61,000,000	6,300,000
Developed product technology [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	568,744,000	348,385,000
Accumulated amortization	(209,478,000)	(121,304,000)
Adjustments of finite lived intangible assets		(44,216,000)
Total intangible assets subject to amortization	359,266,000	182,865,000
Customer relationships [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	64,600,000	20,650,000
Accumulated amortization	(21,009,000)	(14,426,000)
Adjustments of finite lived intangible assets		0
Total intangible assets subject to amortization	43,591,000	6,224,000
Trademarks [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	62,500,000	14,200,000
Accumulated amortization	(7,395,000)	(3,634,000)
Adjustments of finite lived intangible assets		(2,812,000)
Total intangible assets subject to amortization	55,105,000	7,754,000
Covenants not to compete [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross		3,100,000
Accumulated amortization		(2,959,000)
Adjustments of finite lived intangible assets		0
Total intangible assets subject to amortization		141,000
Technology licenses and patents [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	102,000,000	133,909,000
Accumulated amortization	(78,611,000)	(89,289,000)
Adjustments of finite lived intangible assets		0
Total intangible assets subject to amortization	23,389,000	44,620,000
Acquisition-related Intangible Assets [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	695,844,000	386,335,000
Accumulated amortization	(237,882,000)	(142,323,000)
Adjustments of finite lived intangible assets		(47,028,000)
Total intangible assets subject to amortization	457,962,000	196,984,000
Intangible assets subject to amortization [Member]
Intangible Assets
Finite-Lived Intangible Assets, Gross	797,844,000	520,244,000
Accumulated amortization	(316,493,000)	(231,612,000)
Adjustments of finite lived intangible assets		(47,028,000)
Total intangible assets subject to amortization	$ 481,351,000	$ 241,604,000

Adjustments of finite lived intangible assets

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Adjustments of indefinite lived intangible assets.

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Intangible asset adjustment is the amount of accumulated impairment loss for intangible assets. The impairment loss represents the future economic benefits arising from finite-lived and indefinite-lived assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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The gross amount of all intangible assets, including finite-lived and indefinite-lived intangibles.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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