Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Intangible Assets - Narrative (Details)

v3.21.4
Goodwill and Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 8 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 14, 2021
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]          
Goodwill $ 27,011   $ 27,011   $ 2,754
Amortization expense 1,600   1,600    
Expected future amortization, year one 35,000   35,000    
Expected future amortization, year two 35,000   35,000    
Expected future amortization, year three 35,000   35,000    
Expected future amortization, year four 35,000   35,000    
Expected future amortization, year five 35,000   35,000    
Contract amortization $ 500   $ 500    
Aria Energy LLC          
Finite-Lived Intangible Assets [Line Items]          
Amortization expense   $ 1,800      
Contract amortization   (859)   $ (918)  
Depreciation, amortization and accretion of intangible and below-market contracts   $ 7,400   $ 12,200  
Biogas rights agreements | Minimum          
Finite-Lived Intangible Assets [Line Items]          
Useful life     4 years    
Biogas rights agreements | Maximum          
Finite-Lived Intangible Assets [Line Items]          
Useful life     30 years