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Discontinued Operations - Additional Information (Detail) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2015
Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from sale of business     $ 12.2 $ 130.0
Waterloo [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from sale of business     14.0  
Gain on disposal of discontinued operations     $ 6.9  
Discontinued operation beginning period     2014-12  
Discontinued operation ending period     Sep. 09, 2015  
Pre-tax loss on sale of discontinued operations     $ 16.9  
Transaction and other sale-related costs of discontinued operation     2.7  
Estimated tax effect on sale of discontinued operation     26.5  
Loss on sale of business, discontinued operations   $ 17.2 15.6  
Simonton Windows [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Proceeds from sale of business $ 130.0      
Loss on sale of business, discontinued operations   $ 111.8 $ 111.8