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Equity-Based Compensation - Predecessor Promissory Notes (Details) - USD ($) | 6 Months Ended | 11 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 21, 2020 | Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Face amount of debt | $ 1,022,000 |  |
Grant date fair value of options granted | 520,000 | $ 1,900,000 | $ 17,000
Incremental cost resulting from modification | 2,170,000 |  |
Equity-based compensation | 988,000 | $ 0 | 2,267,000
Tax benefit from options exercised |  |  | 3,000
Predecessor Promissory Notes |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Tax benefit from options exercised | $ 208,000 |  | $ 476,000
Predecessor Promissory Notes | Minimum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Interest rate | 1.85% |  |
Predecessor Promissory Notes | Maximum |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Interest rate | 1.91% |  |

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