Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands		12 Months Ended
	Oct. 01, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Acquisition [Line Items]
Revenue		$ 1,610,938	$ 1,666,748	$ 1,810,342
Spezialpapierfabrik Oberschmitten GmbH [Member]
Business Acquisition [Line Items]
Date of acquisition		Oct. 01, 2014
Payment made for acquisition	$ 8,000
Revenue				$ 33,000