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Goodwill, Other Intangible Assets and Other Assets - Other Intangible Assets (Detail) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 29, 2014 | Mar. 30, 2013 | Dec. 28, 2013
Finite-Lived Intangible Assets [Line Items] |  |  |
Document Period End Date | Mar. 29, 2014 |  |
Finite-Lived Intangible Assets, Gross | $ 31,500,000 |  | $ 31,500,000
Intangible assets accumulated amortization | 7,948,000 |  | 7,044,000
Finite-lived intangible assets, accumulated impairment loss | 1,788,000 |  | 1,788,000
Intangible Assets, Net | 21,764,000 |  | 22,668,000
Amortization of Acquired Intangible Assets | 900,000 | 1,000,000 |
Completed technology |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 30,600,000 |  | 30,600,000
Intangible assets accumulated amortization | 7,098,000 |  | 6,202,000
Finite-lived intangible assets, accumulated impairment loss | 1,788,000 |  | 1,788,000
Intangible Assets, Net | 21,714,000 |  | 22,610,000
Research contracts |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 100,000 |  | 100,000
Intangible assets accumulated amortization | 100,000 |  | 100,000
Finite-lived intangible assets, accumulated impairment loss | 0 |  | 0
Intangible Assets, Net | 0 |  | 0
Trade Names |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 800,000 |  | 800,000
Intangible assets accumulated amortization | 750,000 |  | 742,000
Finite-lived intangible assets, accumulated impairment loss | 0 |  | 0
Intangible Assets, Net | $ 50,000 |  | $ 58,000

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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. + References No definition available. + Details
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- Definition Finite-lived intangible assets, accumulated impairment loss + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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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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