Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Details of Intangible Assets (Details)

v3.21.4
Goodwill and Intangible Assets - Details of Intangible Assets (Details) - USD ($)
$ in Thousands
2 Months Ended 3 Months Ended 8 Months Ended 9 Months Ended
Sep. 14, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 14, 2021
Sep. 30, 2021
Sep. 30, 2020
Finite-Lived Intangible Assets [Line Items]            
Amortization expense   $ 1,600     $ 1,600  
Aria Energy LLC            
Finite-Lived Intangible Assets [Line Items]            
Amortization expense       $ 1,800    
Aria Energy LLC | Gas rights agreements            
Finite-Lived Intangible Assets [Line Items]            
Amortization expense $ 1,892   $ 3,777 $ 6,494   $ 11,331
Aria Energy LLC | Gas rights agreements | Minimum            
Finite-Lived Intangible Assets [Line Items]            
Remaining Lives       4 years    
Aria Energy LLC | Gas rights agreements | Maximum            
Finite-Lived Intangible Assets [Line Items]            
Remaining Lives       16 years    
Aria Energy LLC | Operations and maintenance contracts            
Finite-Lived Intangible Assets [Line Items]            
Remaining Lives       5 years    
Amortization expense 52   145 $ 178   434
Aria Energy LLC | Gas sales agreements            
Finite-Lived Intangible Assets [Line Items]            
Amortization expense $ 733   $ 891 $ 2,515   $ 2,674
Aria Energy LLC | Gas sales agreements | Minimum            
Finite-Lived Intangible Assets [Line Items]            
Remaining Lives       1 year    
Aria Energy LLC | Gas sales agreements | Maximum            
Finite-Lived Intangible Assets [Line Items]            
Remaining Lives       8 years