Sale of Product Line - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014	Jan. 31, 2015
Sale Of Product Line [Line Items]
Net Sales	$ 444,011,000	$ 491,429,000	$ 1,356,876,000	$ 1,472,982,000
Gain from the kits sale			2,862,000
J6 Polymers, LLC [Member]
Sale Of Product Line [Line Items]
Gain from the kits sale			$ 2,862,000
J6 Polymers, LLC [Member] | Polyurethane Systems Product Lines [Member]
Sale Of Product Line [Line Items]
Sale of product line for cash						$ 3,262,000
Net Sales					$ 2,800,000