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Commitments and Contingencies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 29, 2012 LegalMatter | Dec. 31, 2011 | Oct. 01, 2011
Commitments and Contingencies [Line Items] |  |  |
Number Of Lawsuits | 1,900 |  |
Number Of Claims In Lawsuit | 2,400 |  |
Liability For claims and contingencies | $ 68.2 | $ 0.6 | $ 0.6
Liability reserve for insurance claims | 50.3 | 0 | 0
Environmental Reserve | 14.1 | 1.5 | 1.4
Outstanding Value Of Letters Of Credit | 461.9 | 136.2 | 146.2
Assumed in Merger |  |  |
Commitments and Contingencies [Line Items] |  |  |
Environmental Reserve | 12.9 |  |
Outstanding Value Of Letters Of Credit | $ 317.3 |  |

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- Details
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- Definition Environmental reserve, other accrued costs. + References No definition available. + Details
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- Definition Liability For Claims And Contingencies + References No definition available. + Details
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- Definition Liability Reserve For Insurance Claims + References No definition available. + Details
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- Definition Number Of Claims In Lawsuit + References No definition available. + Details
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- Definition Number Of Lawsuits + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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