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Discontinued Operations - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended |  |  | 0 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 04, 2012 Escrow [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Escrow identified for general representations and warranties period |  |  | 18 months |  |  |  |
Remaining general escrow fund to be held |  |  | 36 months |  |  |  |
Environmental remediation at the Pearland, Texas facility | $ 1.3 |  | $ 1.3 |  |  | $ 1.4 |
Estimated product liability obligations | 3.6 |  | 3.6 |  |  | 3.6 |
Gain (loss) from discontinued operations and disposal, net of income tax expense (benefit) of $0.0, $(0.3), $0.0, and $(0.1), respectively | 0.2 | (0.8) | 0.1 | (0.6) |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  | 22.0
Escrow Balance, Subsequent Release |  |  |  |  | 7.0 |  |
Escrow Deposit, Subsequent Claim Mady by Buyer |  |  |  |  | $ 0.8 |  |

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