Quarterly report pursuant to Section 13 or 15(d)

Employee Benefit Plans - 401 (k) Plans (Details)

v3.21.2
Employee Benefit Plans - 401 (k) Plans (Details)
 9 Months Ended
Sep. 30, 2021
plan
Defined Contribution Plan Disclosure [Line Items]  
Number of defined contribution plans 2
Employer matching contribution 100.00%
Aria Energy LLC | Pension Plan, First Contribution  
Defined Contribution Plan Disclosure [Line Items]  
Employer matching contribution 100.00%
Employer matching contribution, percent of employees eligible compensation 3.00%
Aria Energy LLC | Pension Plan, Next Contribution  
Defined Contribution Plan Disclosure [Line Items]  
Employer matching contribution 50.00%
Employer matching contribution, percent of employees eligible compensation 2.00%
Maximum  
Defined Contribution Plan Disclosure [Line Items]  
Employer matching contribution, percent of employees eligible compensation 5.00%