Quarterly report pursuant to Section 13 or 15(d)

Equity Method Investments - Balance Sheet (Details)

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Equity Method Investments - Balance Sheet (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]    
Assets $ 1,387,245 $ 74,281
Liabilities 646,788 42,790
Aria Energy LLC    
Schedule of Equity Method Investments [Line Items]    
Assets   392,919
Liabilities   294,859
Mavrix    
Schedule of Equity Method Investments [Line Items]    
Assets 200,106  
Liabilities 20,531  
Net assets 179,575  
Company's share of equity in net assets $ 89,787  
Mavrix | Aria Energy LLC    
Schedule of Equity Method Investments [Line Items]    
Assets   171,288
Liabilities   13,570
Net assets   157,718
Company's share of equity in net assets   $ 77,993