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Fair Value Measurements - Measured on Recurring Basis (Details) - USD ($)
$ in Thousands
Jun. 30, 2022
Dec. 31, 2021
Ecotec    
Fair value    
Ownership interest (as a percent) 14.00%  
Recurring Basis    
Fair value measurement of assets and liabilities    
Investment in ECOTEC $ 8,000  
Equity Securities, FV-NI, Fair Value by Fair Value Hierarchy Level Level 3  
Derivative liabilities $ 0 $ 1,250
Derivative Liability, Fair Value by Fair Value Hierarchy Level us-gaap:FairValueInputsLevel2Member us-gaap:FairValueInputsLevel2Member