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Stock Based Compensation, Share Option Valuation (Details) - Stock Options [Member] - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Stock Option Activity [Roll Forward]      
Outstanding at beginning of period (in shares) 13,138,870    
Granted (in shares) 1,792,097    
Exercised (in shares) (88,429)    
Cancelled (in shares) (191,148)    
Outstanding at end of period (in shares) 14,651,390   13,138,870
Options vested and exercisable at end of period (in shares) 10,586,141    
Options unvested at ending of period (in shares) 4,065,249    
Weighted Average Exercise Price [Abstract]      
Outstanding at beginning of period (in dollars per share) $ 14.52    
Granted (in dollars per share) 20.36    
Exercised (in dollars per share) 12.59    
Cancelled (in dollars per share) 33.99    
Outstanding at end of period (in dollars per share) 14.99   $ 14.52
Options vested and exercisable at end of period (in dollars per share) 12.6    
Options unvested at ending (in dollars per share) $ 21.24    
Weighted-Average Remaining Contractual Term [Abstract]      
Outstanding 5 years 10 months 6 days   5 years 5 months 15 days
Granted 6 years 10 months 9 days    
Options vested and exercisable 4 years 6 months 7 days    
Options unvested 9 years 3 months 25 days    
Aggregate Intrinsic Value [Abstract]      
Outstanding at beginning of period $ 118,767    
Exercised 631    
Outstanding at end of period 97,263   $ 118,767
Options vested and exercisable 92,808    
Options unvested $ 4,455    
Weighted average grant date fair value of shares granted (in dollars per share) $ 13.5 $ 11.6  
Total fair value of options vested $ 11,400 $ 12,500  
Employees and Directors [Member]      
Weighted-Average Assumptions [Abstract]      
Risk-free interest rate 4.02% 1.88%  
Expected term 5 years 10 months 17 days 5 years 10 months 9 days  
Expected volatility 73.54% 74.07%  
Expected dividend yield 0.00% 0.00%  
Exercise price (in dollars per share) $ 20.17 $ 17.85  
Fair value of common stock (in dollars per share) $ 20.17 $ 17.85