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Discontinued Operations - Summary of Financial Data for Equity Method Investments Included in Discontinued Operations (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Current assets $ 148,948 $ 234,643  
Total assets 314,587 455,763  
Current liabilities 42,127 122,912  
Total liabilities 247,413 384,052  
Net loss (170,521) (323,916) $ (514,706)
Equity Method Investment, Nonconsolidated Investee or Group of Investees | EnviroFlight Sale | Discontinued Operations, Held-for-sale      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Current assets   703  
Noncurrent assets   30,549  
Total assets   31,252  
Current liabilities   2,352  
Non-current liabilities   88  
Total liabilities   2,440  
Net assets   28,812  
Equity Method Investment, Nonconsolidated Investee or Group of Investees | EnviroFlight Sale | Discontinued Operations, Disposed of by Sale      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Revenues 16 510  
Operating expenses 92 9,159  
Operating loss (76) (8,649)  
Other, net 0 21  
Net loss $ (76) $ (8,628)  
Equity Method Investment, Nonconsolidated Investee or Group of Investees | TS Biotechnology and EnviroFlight | Discontinued Operations, Disposed of by Sale      
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]      
Revenues     268
Operating expenses     12,709
Operating loss     (12,441)
Other, net     39
Net loss     $ (12,402)