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Stock-Based Compensation - Schedule of Time-Based Restricted Stock Unit Activity (Details) - Time-Based Restricted Stock Units
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Number of Shares  
Beginning balance (in shares) | shares 1,103,487
Granted (in shares) | shares 931,244
Vested (in shares) | shares (548,301)
Canceled, forfeited or expired (in shares) | shares (114,104)
Ending balance (in shares) | shares 1,372,326
Weighted Average Grant Date Fair Value  
Beginning balance (in USD per share) | $ / shares $ 11.89
Granted (in USD per share) | $ / shares 4.24
Vested (in USD per share) | $ / shares 10.55
Canceled, forfeited or expired (in USD per share) | $ / shares 7.23
Ending balance (in USD per share) | $ / shares $ 7.62