Quarterly report pursuant to Section 13 or 15(d)

Stock Incentive Plan - RSU and PSU Award Activity (Details)

v3.21.2
Stock Incentive Plan - RSU and PSU Award Activity (Details) - Restricted and Performance Stock Units - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Stock Units    
Unvested beginning balance (in shares) 1,782,905  
Granted (in shares) 863,014  
Released (in shares) (206,193)  
Forfeited (in shares) (250,710)  
Unvested ending balance (in shares) 2,189,016 1,782,905
Weighted-Average Fair Value at Date of Grant per Share    
Unvested beginning balance (in USD per share) $ 15.23  
Granted (in USD per share) 20.56  
Released (in USD per share) 16.68  
Forfeited (in USD per share) 16.22  
Unvested ending balance (in USD per share) $ 17.08 $ 15.23
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]    
Unvested, Weighted Average Remaining Vesting Life (in years) 1 year 8 months 8 days 1 year 9 months 29 days
Unvested, Aggregate Intrinsic Value $ 34,586 $ 31,825