Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Unrecognized Tax Benefit Roll-Forward (Details)

v3.20.4
Income Taxes - Schedule of Unrecognized Tax Benefit Roll-Forward (Details) - USD ($)
$ in Thousands
4 Months Ended 8 Months Ended 12 Months Ended
Dec. 31, 2019
Aug. 31, 2019
Dec. 31, 2020
Dec. 31, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]        
As of the beginning of the year $ 5,629 $ 205 $ 5,629 $ 204
Increases for tax positions of current years 0 0 0 7
Reductions for tax positions of prior years 0 0 0 (6)
Increase from Ascent downstream merger 0 5,424 0 0
As of the end of the year $ 5,629 $ 5,629 $ 5,629 $ 205