Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Below-Market Contracts (Details)

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Goodwill and Intangible Assets - Below-Market Contracts (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Gross Liability $ 108,880  
Accumulated Amortization 488  
Net $ 108,392  
Aria Energy LLC | Gas purchase agreements    
Finite-Lived Intangible Assets [Line Items]    
Gross Liability   $ 19,828
Accumulated Amortization   14,059
Net   $ 5,769