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Business Combination - Schedule of Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Apr. 14, 2016
Dec. 31, 2015
Business Acquisition [Line Items]      
Goodwill $ 13,839   $ 12,005
Allenex [Member]      
Business Acquisition [Line Items]      
Cash   $ 596  
Accounts receivable   1,608  
Prepaid and other assets   1,092  
Inventory   9,636  
Property, plant and equipment   1,057  
Intangible assets   31,560  
Goodwill   16,922  
Deferred tax liability   (8,598)  
Assumed liabilities   (19,799)  
Total preliminary acquisition consideration   $ 34,074