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Acquisitions - Additional Information (Detail)
$ in Thousands
 8 Months Ended 12 Months Ended
Oct. 01, 2014
USD ($)
Apr. 30, 2013
USD ($)
Dec. 31, 2013
USD ($)
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Employees
t
Business Acquisition [Line Items]            
Revenue       $ 1,666,748 $ 1,810,342 $ 1,725,768
Payment made for acquisition, net of cash acquired       $ 224 8,015 210,911
Revenue           1,779,434
Remaining useful life of intangible assets       17 years    
Goodwill       $ 76,056 84,137  
Intangible assets       87,596    
Identifiable intangible assets       9,800    
Operating income       $ 96,372 106,780 86,519
Acquisition related costs           3,200
Fair value write up of acquired inventory           1,100
Integration related costs           2,000
Minimum [Member]            
Business Acquisition [Line Items]            
Useful life of property plant and equipment       5 years    
Maximum [Member]            
Business Acquisition [Line Items]            
Useful life of property plant and equipment       30 years    
Dresden Papier GmbH [Member]            
Business Acquisition [Line Items]            
Date of acquisition       Apr. 30, 2013    
Revenue     $ 101,800      
Payment made for acquisition, net of cash acquired   $ 211,000        
Revenue           $ 158,600
Number of employees | Employees           146
Manufacturing capacity | t           72,800
Goodwill       $ 74,900    
Intangible assets       $ 87,600    
Operating income     $ 18,300      
Spezialpapierfabrik Oberschmitten GmbH [Member]            
Business Acquisition [Line Items]            
Date of acquisition       Oct. 01, 2014    
Payment made for acquisition $ 8,000          
Revenue         $ 33,000