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Asset Impairment Charge - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]  
Non-cash asset impairment charge $ 3,262
Dresden Papier GmbH [Member] | Trade Name [Member]
 
Finite-Lived Intangible Assets [Line Items]  
Non-cash asset impairment charge $ 3,300