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License Agreement - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Nov. 01, 2017
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
License Agreement [Line Items]        
Revenue   $ 239,866 $ 228,691  
Xeikon [Member]        
License Agreement [Line Items]        
Volume based payment tied to ink purchases       $ 2,000
Support services and license agreement, effective date Nov. 01, 2017      
Support services and license agreement, period 4 years      
Revenue   $ 100    
Xeikon [Member] | Trade Names [Member]        
License Agreement [Line Items]        
Amortization period of intangible assets       4 years