Commitments And Contingencies (Other Contingencies) (Detail) $ in Thousands		3 Months Ended			9 Months Ended		12 Months Ended
	Aug. 08, 2014 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014	Dec. 31, 2011 Home	Apr. 22, 2016 USD ($)	Feb. 09, 2016 USD ($)	Jul. 02, 2015 USD ($)	Dec. 31, 2013 Homeowner	Dec. 31, 2012 acre	Apr. 15, 2011 Homeowner	Jul. 31, 2006
Loss Contingencies [Line Items]
Airplane operating lease period, years								five
Fair Value Of Residual Value Guarantee				$ 7,800
Fair Value Of Residual Value Guarantee, Fair Value of Operating Lease Asset Threshold				9,500
Asbestos Commitments and Contingencies
Loss Contingencies [Line Items]
Gross Settlement And Defense Incurred Costs		$ 19,700	$ 14,700		$ 57,500	$ 52,500	$ 69,400
Environmental Claims For A Site In Goodyear Arizona
Loss Contingencies [Line Items]
Estimated liability		52,300			52,300
Amount of additional remediation activities				49,000
Accrued environmental loss contingencies current		16,000			16,000
Loss contingency reimbursement rate																21.00%
Other receivables		$ 10,600			10,600
Environmental Claims For Crab Orchard National Wildlife Refuge Superfund Site
Loss Contingencies [Line Items]
Approximate size of referenced site, acres | acre														55,000
Environmental Claims For Site In Roseland New Jersey
Loss Contingencies [Line Items]
Amount of additional remediation activities				$ 6,800
Approximate number of homes tested for contaminants | Home									40
Homeowners Filing Suits Against Company | Homeowner													139		3
Loss Contingency, Damages Paid, Value	$ 6,500
Huttig [Domain]
Loss Contingencies [Line Items]
Litigation Settlement, Amount					$ (5,000)
James Poage [Member] | Asbestos Commitments and Contingencies
Loss Contingencies [Line Items]
compensatory_damages												$ 1,500
Additional damages												10,000
Court Judgment												$ 10,800
Valent Rabovsky [Member] | Asbestos Commitments and Contingencies
Loss Contingencies [Line Items]
Court Judgment										$ 400
Share Of Responsibility Of Verdict											30.00%
Jury Verdict Total											$ 1,085
George Coulbourn [Member] | Asbestos Commitments and Contingencies
Loss Contingencies [Line Items]
Court Judgment										$ 6,800
Share Of Responsibility Of Verdict										20.00%
Jury Verdict Total										$ 9,000
Court Reduced damages										$ 5,000