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Stock-based Compensation - Schedule of Activity of RSUs Granted (Details) - $ / shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Restricted Stock Units RSU    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of Shares, Beginning Balance 2,989,322  
Number of Shares, Granted 682,517 3,012,399
Number of Shares, Vested (766,934) (23,077)
Number of Shares, Forfeited (169,199)  
Number of Shares, Ending Balance 2,735,706 2,989,322
Grant Date Fair Value per share, Beginning Balance $ 13.00  
Grant Date Fair Value per share, Granted 53.42 $ 13.00
Grant Date Fair Value per share, Vested 15.46 13.00
Grant Date Fair Value per share, Forfeited 13.72  
Grant Date Fair Value per share, Ending Balance $ 22.35 $ 13.00
Cash Restricted Stock Unit Award CRSU    
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Number of Shares, Granted 11,844  
Number of Shares, Vested (11,220)  
Number of Shares, Ending Balance 624  
Grant Date Fair Value per share, Granted $ 48.62  
Grant Date Fair Value per share, Vested 49.37  
Grant Date Fair Value per share, Ending Balance $ 35.05