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Goodwill and Identified Intangible Assets - Summary of Goodwill and Identified Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified |  |  |  |  | 9 Months Ended |  |  | 9 Months Ended |  |  | 9 Months Ended |  |  | 9 Months Ended
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Sep. 26, 2014 | Dec. 31, 2013 | Sep. 26, 2014 Developed core technology [Member] | Dec. 31, 2013 Developed core technology [Member] | Sep. 26, 2014 Developed core technology [Member] Minimum [Member] | Sep. 26, 2014 Developed core technology [Member] Maximum [Member] | Sep. 26, 2014 Customer relationships/contracts [Member] | Dec. 31, 2013 Customer relationships/contracts [Member] | Sep. 26, 2014 Customer relationships/contracts [Member] Minimum [Member] | Sep. 26, 2014 Customer relationships/contracts [Member] Maximum [Member] | Sep. 26, 2014 Trademarks and tradenames [Member] | Dec. 31, 2013 Trademarks and tradenames [Member] | Sep. 26, 2014 Trademarks and tradenames [Member] Minimum [Member] | Sep. 26, 2014 Trademarks and tradenames [Member] Maximum [Member] | Sep. 26, 2014 Maintenance agreements and related relationships [Member] | Dec. 31, 2013 Maintenance agreements and related relationships [Member] | Sep. 26, 2014 Maintenance agreements and related relationships [Member] Minimum [Member] | Sep. 26, 2014 Maintenance agreements and related relationships [Member] Maximum [Member]
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Useful Life |  |  |  |  | 4 years | 6 years |  |  | 5 years | 6 years |  |  | 4 years | 5 years |  |  | 6 years | 7 years
Gross Carrying Amount | $ 221,704 | $ 221,704 | $ 136,145 | $ 136,145 |  |  | $ 67,098 | $ 67,098 |  |  | $ 11,361 | $ 11,361 |  |  | $ 7,100 | $ 7,100 |  |
Accumulated Amortization | (208,964) | (190,585) | (134,731) | (121,681) |  |  | (57,568) | (53,772) |  |  | (11,361) | (10,565) |  |  | (5,304) | (4,567) |  |
Total future amortization expense | $ 12,740 | $ 31,119 | $ 1,414 | $ 14,464 |  |  | $ 9,530 | $ 13,326 |  |  | $ 0 | $ 796 |  |  | $ 1,796 | $ 2,533 |  |

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- Definition 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 -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount before 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 -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount after 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 -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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