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Acquisition - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Oct. 01, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Acquisition [Line Items]
Revenue		$ 411,518	$ 446,131	$ 831,055	$ 907,114
Spezialpapierfabrik Oberschmitten GmbH [Member]
Business Acquisition [Line Items]
Date of acquisition				Oct. 01, 2014
Payment made for acquisition	$ 8,000
Revenue	$ 33,000

X

- Definition

Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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