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Discontinued Operations - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended 0 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
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 of $0.0, $0.2, $0.0, and $0.2, respectively 0.1 (0.3) (0.1) 0.2    
Gain (Loss) on Disposition of Business           22.0
Escrow Balance, Subsequent Release 7.0   7.0      
Escrow Deposit, Subsequent Claim Mady by Buyer $ 0.8   $ 0.8