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Acquisition - Additional Information (Detail) (USD $)
 0 Months Ended 3 Months Ended 3 Months Ended 12 Months Ended
Apr. 30, 2013
Mar. 31, 2014
Mar. 31, 2013
Dec. 31, 2013
Mar. 31, 2014
Minimum [Member]
Mar. 31, 2014
Maximum [Member]
Mar. 31, 2014
Dresden Papier GmbH [Member]
Dec. 31, 2013
Dresden Papier GmbH [Member]
Employees
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Business Acquisition [Line Items]                
Payment made for acquisition, net of cash acquired $ 211,000,000              
Revenue   460,983,000 406,290,000       41,300,000 158,600,000
Number of employees               146
Manufacturing capacity               72,800
Date of acquisition               Apr. 30, 2013
Useful life of property plant and equipment         5 years 30 years    
Remaining useful life of intangible assets   17 years            
Goodwill   95,629,000   95,948,000     74,900,000  
Intangible assets   87,596,000         87,600,000  
Identifiable intangible assets   9,800,000            
Operating income   $ 22,298,000 $ 23,961,000       $ 8,500,000