Goodwill and Intangible Assets (Details 1) (USD $) In Thousands	6 Months Ended
Jul. 03, 2011	Jan. 02, 2011
Intangible Assets
Gross Carrying Amount	$ 438,340	$ 122,540
Accumulated Amortization	(108,213)	(85,136)
Net Carrying Amount	330,127	37,404
Developed product technology [Member]
Intangible Assets
Gross Carrying Amount	172,800	11,400
Accumulated Amortization	(12,543)	(8,075)
Net Carrying Amount	160,257	3,325
Trademarks [Member]
Intangible Assets
Gross Carrying Amount	5,300
Accumulated Amortization	(103)
Net Carrying Amount	5,197
Customer relationships [Member]
Intangible Assets
Gross Carrying Amount	12,200
Accumulated Amortization	(593)
Net Carrying Amount	11,607
Covenants not to compete [Member]
Intangible Assets
Gross Carrying Amount	700
Accumulated Amortization	(34)
Net Carrying Amount	666
Technology Licenses and Patents [Member]
Intangible Assets
Gross Carrying Amount	131,340
Accumulated Amortization	(28,492)
Net Carrying Amount	102,848
Acquisition-related Intangible Assets [Member]
Intangible Assets
Gross Carrying Amount	270,800	91,200
Accumulated Amortization	(79,721)	(65,621)
Net Carrying Amount	191,079	25,579
Estimated Amortization Expense of Intangible Assets
2011	30,126
2012	44,906
2013	35,938
2014	33,340
2015	33,340
2016	13,429
Total intangible assets subject to amortization	191,079
Technology licenses and patents [Member]
Intangible Assets
Gross Carrying Amount		31,340
Accumulated Amortization		(19,515)
Net Carrying Amount		11,825
Estimated Amortization Expense of Intangible Assets
2011	12,309
2012	23,971
2013	22,671
2014	20,564
2015	20,000
2016	3,333
Total intangible assets subject to amortization	102,848
Intangible assets subject to amortization [Member]
Intangible Assets
Gross Carrying Amount	402,140
Accumulated Amortization	(108,213)
Net Carrying Amount	293,927
Acquired in-process research and development [Member]
Intangible Assets
Gross Carrying Amount	36,200
Accumulated Amortization	0
Net Carrying Amount	36,200
Core Technology [Member]
Intangible Assets
Gross Carrying Amount	79,800	79,800
Accumulated Amortization	(66,448)	(57,546)
Net Carrying Amount	$ 13,352	$ 22,254

The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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-Subparagraph (a)(1)
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- Definition

The aggregate estimated amortization expense for succeeding fiscal years for intangible assets subject to amortization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 142
-Paragraph 45
-Subparagraph a(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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The amount of amortization expense expected to be recognized for the remainder of the finite-lived intangible asset useful life after the fifth succeeding fiscal year.

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The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years.

+ References

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-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 45
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The amount of amortization expense expected to be recognized during year four of the five succeeding fiscal years.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The amount of amortization expense expected to be recognized during year one of the five succeeding fiscal years.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The amount of amortization expense expected to be recognized during year three of the five succeeding fiscal years.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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