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Stock-Based Compensation - Summary of Nonvested Shareholder Value Awards Activity (Details) - Shareholder Value Awards (SVAs)
12 Months Ended
Dec. 31, 2021
$ / shares
shares
SVAs Outstanding  
Unvested and Outstanding, Beginning Balance (in shares) | shares 3,653,146
Vested (in shares) | shares (3,070,459)
Cancelled (in shares) | shares (267,128)
Unvested and Outstanding, Ending Balance (in shares) | shares 315,559
Vested and Outstanding (in shares) | shares 0
Weighted-Average Grant Date Fair Value per Share  
Unvested and Outstanding, Beginning Balance (in dollars per share) | $ / shares $ 3.20
Vested (in dollars per share) | $ / shares 3.08
Cancelled (in dollars per share) | $ / shares 5.77
Unvested and Outstanding, Ending Balance (in dollars per share) | $ / shares 5.29
Vested and Outstanding (in dollars per share) | $ / shares $ 0