Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Schedule of Error Corrections and Prior Period Adjustments (Details)

v3.20.4
Summary of Significant Accounting Policies - Schedule of Error Corrections and Prior Period Adjustments (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items]                      
Total Revenues $ 244,727 $ 136,176 $ 186,301 $ 299,338 $ 336,468 $ 341,745 $ 512,451 $ 372,462 $ 866,542 $ 1,563,126 $ 1,551,701
Midstream gathering and processing expenses                 456,318 508,843 486,845
Total Operating Expenses                 2,229,147 3,266,819 1,152,742
Natural gas sales                      
Error Corrections and Prior Period Adjustments Restatement [Line Items]                      
Revenue                 $ 671,535 1,135,381 1,318,472
As Reported                      
Error Corrections and Prior Period Adjustments Restatement [Line Items]                      
Total Revenues                   1,346,008 1,355,044
Midstream gathering and processing expenses                   291,725 290,188
Total Operating Expenses                   3,049,701 956,085
As Reported | Natural gas sales                      
Error Corrections and Prior Period Adjustments Restatement [Line Items]                      
Revenue                   918,263 1,121,815
Adjustments                      
Error Corrections and Prior Period Adjustments Restatement [Line Items]                      
Total Revenues                   217,118 196,657
Midstream gathering and processing expenses                   217,118 196,657
Total Operating Expenses                   217,118 196,657
Adjustments | Natural gas sales                      
Error Corrections and Prior Period Adjustments Restatement [Line Items]                      
Revenue                   $ 217,118 $ 196,657