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Investments in Joint Ventures - Intrexon Energy Partners - Additional Information (Details)
1 Months Ended
Mar. 31, 2014
USD ($)
Mar. 31, 2018
USD ($)
board_seat
Dec. 31, 2017
USD ($)
Schedule of Equity Method Investments [Line Items]      
Investment   $ 21,406,000 $ 18,870,000
Intrexon Energy Partners, LLC      
Schedule of Equity Method Investments [Line Items]      
Membership interest 50.00%    
Maximum additional capital contribution committed $ 25,000,000    
Additional capital contributions committed, remaining commitment   $ 6,011,000  
Total number of seats on the joint venture's governing board | board_seat   5  
Total number of seats on the joint venture's governing board, internally selected | board_seat   2  
Total number of seats on the joint venture's governing board, externally selected | board_seat   3  
Intrexon Energy Partners, LLC | Other Accrued Liabilities      
Schedule of Equity Method Investments [Line Items]      
Investment   $ (806,000) $ (444,000)
Intrexon Energy Partners, LLC | Investors      
Schedule of Equity Method Investments [Line Items]      
Membership interest 50.00%    
Capital contributions $ 25,000,000    
Maximum additional capital contribution committed 25,000,000    
Upfront and Milestone Payments | Intrexon Energy Partners, LLC | Upfront      
Schedule of Equity Method Investments [Line Items]      
Collaborative arrangement consideration received, value $ 25,000,000