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Acquisitions - Additional Information (Detail) (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 29, 2013 | Sep. 30, 2012 | Sep. 29, 2013 | Sep. 30, 2012 | Dec. 31, 2012
Business Acquisition [Line Items] |  |  |  |  |
Revenue | $ 413,796,000 | $ 368,054,000 | $ 1,245,732,000 | $ 1,131,953,000 |
Operating profit | 66,042,000 | 49,841,000 | 179,197,000 | (155,815,000) |
Goodwill | 1,241,393,000 |  | 1,241,393,000 |  | 1,249,456,000
Contingent consideration payments |  |  | 16,367,000 | 6,930,000 |
2013 Acquisitions |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Fair value of the consideration at the date of acquisition | 38,500,000 |  | 38,500,000 |  |
Transaction expenses | 100,000 |  | 700,000 |  |
Revenue | 1,200,000 |  | 1,200,000 |  |
Operating profit | 200,000 |  |  |  |
Liability related to post-closing obligations |  |  | 2,800,000 |  |
Goodwill | 9,600,000 |  | 9,600,000 |  |
2013 Acquisitions | Intellectual property |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Useful life of intangible assets acquired, years |  |  | 10 years |  |
Intangible assets | 2,200,000 |  | 2,200,000 |  |
2013 Acquisitions | Customer Lists |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Useful life of intangible assets acquired, years |  |  | 16 years |  |
Intangible assets | 8,400,000 |  | 8,400,000 |  |
2013 Acquisitions | Trade Names |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Intangible assets | 1,100,000 |  | 1,100,000 |  |
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 |  |
Intangible assets | 227,500,000 |  | 227,500,000 |  |
Goodwill | 152,800,000 |  | 152,800,000 |  |
Contingent consideration payments |  |  | 26,000,000 |  |
Contingent consideration arrangement, low | 0 |  | 0 |  |
Contingent consideration arrangement, high | $ 62,000,000 |  | $ 62,000,000 |  |
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 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 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 Amount after accumulated impairment loss of an asset representing 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 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + 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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