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Loss Per Share - Summary of Loss Per Share (Parenthetical) (Details) - shares shares in Millions | 10 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2020 | Dec. 31, 2019
Earnings Per Share [Abstract] |  |  |
Warrants exercisable |  | 1.0 | 6.2
Simple warrants exercisable | 2.2 | 2.2 | 5.1
Performance warrants exercisable | 2.0 | 1.1 | 4.5

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