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Revenue Recognition - Changes in Company's Contract Liabilities (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2021
USD ($)
Change in Contract with Customer, Liability [Roll Forward]  
Balance as of December 31, 2020 (Successor) $ 3,966
Revenues recognized (164)
Balance as of June 30, 2021 (Successor) $ 3,802