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Acquisitions - Additional Information (Details) - USD ($)
 6 Months Ended
Sep. 19, 2016
Jun. 30, 2017
Globe Holding Company LLC    
Business Acquisition [Line Items]    
Business Acquisition, Transaction Costs   $ 600,000
Senscient, Inc.    
Business Acquisition [Line Items]    
Voting interest acquired (percentage) 100.00%  
Purchase price $ 19,100,000  
Contingent consideration 0  
Cash 700  
Integration costs   500,000
Amortization expense, year one   300,000
Amortization expense, year two   700,000
Amortization expense, year three   700,000
Amortization expense, year four   700,000
Amortization expense, year five   700,000
Goodwill $ 10,500 $ 10,500,000
Technology-Based Intangible Assets | Senscient, Inc.    
Business Acquisition [Line Items]    
Intangible asset, useful life (years)   10 years
Customer-Related Intangible Assets | Senscient, Inc.    
Business Acquisition [Line Items]    
Intangible asset, useful life (years)   5 years