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Investments in Joint Ventures - Intrexon Energy Partners II - Additional Information (Details) | 1 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 USD ($) board_seat | Sep. 30, 2019 USD ($) | Dec. 31, 2018 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |
Investment |  | $ 17,487,000 | $ 18,859,000
Intrexon Energy Partners II, LLC |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Ownership interest | 50.00% |  |
Maximum additional capital contribution committed | $ 10,000,000 |  |
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 | 1 |  |
Total number of seats on the joint venture's governing board, externally selected | board_seat | 4 |  |
Intrexon Energy Partners II, LLC | Other Accrued Liabilities |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Investment |  | $ (425,000) | $ (50,000)
Intrexon Energy Partners II, LLC | Investors |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Ownership interest | 50.00% |  |
Capital contributions | $ 18,000,000 |  |
Maximum additional capital contribution committed | 10,000,000 |  |
Intrexon Energy Partners II, LLC | All Investors |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Capital contributions | 4,000,000 |  |
Intrexon Energy Partners II, LLC | Collaboration and licensing agreements |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Collaborative arrangement consideration received, value | $ 18,000,000 |  |

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