Discontinued Operations - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business		$ 12.2	$ 130.0
Gain on disposal of discontinued operations			111.2
Restructuring and impairment charges			10.7	$ 27.4
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		$ 7.0
Discontinued operation beginning period		Jan. 01, 2013
Pre-tax loss on sale of discontinued operations		$ 16.7
Transaction and other sale-related costs of discontinued operation		2.8
Estimated tax effect on sale of discontinued operation		$ 26.5
Restructuring and impairment charges			$ 14.1
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