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Acquisitions - Additional Information (Detail) (USD $) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jul. 01, 2012 | Jun. 30, 2013 | Jul. 01, 2012
Business Acquisition [Line Items] |  |  |  |
Aggregate segment operating loss | $ 63,751,000 | $ 64,722,000 | $ 113,155,000 | $ (205,656,000)
2012 Acquisitions |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Fair value of the consideration at the date of acquisition | 422,200,000 |  | 422,200,000 |
Initial payment of Fair value |  |  | 367,900,000 |
Estimated fair value of the consideration to be paid to former security holders | 55,800,000 |  | 55,800,000 |
Working capital adjustment related to acquisition | 1,500,000 |  | 1,500,000 |
Contingent consideration arrangement, low | 2,000,000 |  | 2,000,000 |
Contingent consideration arrangement, high | 90,000,000 |  | 90,000,000 |
2013 Acquisitions |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Fair value of the consideration at the date of acquisition | 38,500,000 |  | 38,500,000 |
Transaction expenses | 400,000 |  | 500,000 |
Aggregate segment operating loss | 2,900,000 |  | 2,900,000 |
Liability related to post-closing obligations | $ 2,800,000 |  | $ 2,800,000 |
2013 Acquisitions | Intellectual property |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Useful life of intangible assets acquired, years |  |  | 10 years |
2013 Acquisitions | Customer Lists |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Useful life of intangible assets acquired, years |  |  | 15 years |
Minimum | 2013 Acquisitions | Trade Names |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Useful life of intangible assets acquired, years |  |  | 1 year |
Maximum | 2013 Acquisitions | Trade Names |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Useful life of intangible assets acquired, years |  |  | 10 years |

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- Definition Estimated fair value of contingent consideration to be paid to former security holders. + References No definition available. + Details
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 + Details
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- Definition Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6405-128476 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479 + Details
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- Definition For contingent consideration arrangements and indemnification assets recognized in connection with a business combination, this element represents an estimate of the low-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479 + Details
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- Definition Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=25498275&loc=d3e2207-128464 + Details
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- Definition The expenses and losses recorded for each transaction with the acquiree that was recognized separately from the acquisition of assets and assumptions of liabilities in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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