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Fair Value Measurement - Additional Information (Detail) (USD $) | 3 Months Ended | 9 Months Ended |  | 3 Months Ended
--- | --- | --- | --- | ---
Sep. 29, 2013 | Jul. 01, 2012 | Sep. 29, 2013 | Sep. 30, 2012 | Sep. 29, 2013 Minimum | Sep. 29, 2013 Maximum | Sep. 29, 2013 Significant Unobservable Inputs (Level 3) | Apr. 01, 2012 Significant Unobservable Inputs (Level 3)
Fair Value Measurements [Line Items] |  |  |  |  |  |  |  |
Reversal of contingent consideration | $ 4,400,000 |  | $ 12,400,000 | $ 700,000 |  |  |  |
Impairment charges related to assets held for sale | 3,354,000 |  | 3,354,000 |  |  |  | 3,354,000 |
Goodwill impairment |  | 332,000,000 |  | 332,128,000 |  |  |  | 332,000,000
Fair value of contingent consideration liability associated with future milestone |  |  |  |  | 0 | 77,700,000 |  |
Contingent consideration | 20,600,000 |  | 20,600,000 |  |  |  |  |
Current contingent consideration | 4,700,000 |  | 4,700,000 |  |  |  |  |
Other liabilities | $ 15,900,000 |  | $ 15,900,000 |  |  |  |  |

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- Definition Estimated Fair Value Of Contingent Consideration In Event Company Achieves Specified Milestones + References No definition available. + Details
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- Definition Fair Value Measurement with Unobservable Inputs Reconciliation Contingent Liability in Acquisition + References No definition available. + Details
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- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Contingent Liability in Acquisition, Current + References No definition available. + Details
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- Definition Fair Value, Measurement with Unobservable Inputs Reconciliation, Contingent Liability in Acquisition, Noncurrent + References No definition available. + Details
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- Definition Amount of (increase) decrease in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e7008-128479 + Details
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + 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 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13854-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + 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 360 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2611-110228 + Details
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