Subsequent Events - Additional Information (Detail) - Corrugated Technologies, Inc. [Member] - USD ($) shares in Millions, $ in Millions		9 Months Ended
	Oct. 06, 2015	Sep. 30, 2015
Subsequent Event [Line Items]
Acquisition date		Oct. 06, 2015
Subsequent Event [Member]
Subsequent Event [Line Items]
Equity consideration to acquire business	$ 8.5
Future shares issuance on acquisition of business	0.2