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Stock-based Compensation - Schedule of Restricted Stock and Restricted Stock units Activity (Details) - $ / shares
9 Months Ended 12 Months Ended
Sep. 30, 2019
Dec. 31, 2021
Nonvested restricted stock awards    
NUMBER OF SHARES    
Beginning balance (in shares)   809,527
Granted (in shares)   660,926
Vested (in shares)   (274,488)
Canceled (in shares) (43,071) (218,721)
Ending balance (in shares)   977,244
WEIGHTED AVERAGE FAIR VALUE PER SHARE    
Beginning balance (in dollars per share)   $ 29.03
Granted (in dollars per share)   13.48
Vested (in dollars per share)   33.70
Canceled (in dollars per share)   24.03
Ending balance (in dollars per share)   $ 18.32
Nonvested restricted stock units    
NUMBER OF SHARES    
Beginning balance (in shares)   107,182
Granted (in shares)   100,322
Vested (in shares)   (30,958)
Canceled (in shares)   (19,673)
Ending balance (in shares) 43,071 156,873
WEIGHTED AVERAGE FAIR VALUE PER SHARE    
Beginning balance (in dollars per share)   $ 14.43
Granted (in dollars per share)   15.48
Vested (in dollars per share)   15.27
Canceled (in dollars per share)   14.89
Ending balance (in dollars per share)   $ 14.88