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Arq Acquisition - Schedule of Revenues and Net Loss for Arq (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2023
Jun. 30, 2022
Business Acquisition [Line Items]            
Revenues $ 20,445   $ 24,739   $ 41,250 $ 51,141
Net loss $ (5,856) $ (7,508) $ (326) $ (3,033) (13,364) $ (3,359)
Arq Acquisition            
Business Acquisition [Line Items]            
Revenues         0  
Net loss         $ (6,756)