Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Stock Option Activity (Details)

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Stock Based Compensation - Stock Option Activity (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2024
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Stock-based compensation        
Number of shares, Outstanding at beginning of period   2,730,068    
Number of shares, Granted   34,170    
Number of shares, Exercised   (149,759)    
Number of shares, Forfeited, expired or cancelled   (32,376)    
Number of shares, Outstanding at end of period 2,582,103 2,582,103   2,730,068
Number of shares, Exercisable at end of period 2,065,010 2,065,010    
Weighted Average Exercise Price Per Share, Outstanding at beginning of period   $ 20.88    
Weighted Average Exercise Price Per Share, Granted   24.71    
Weighted Average Exercise Price Per Share, Exercised   5.82    
Weighted Average Exercise Price Per Share, Forfeited, expired or cancelled   160.48    
Weighted Average Exercise Price Per Share, Outstanding at end of period $ 20.06 20.06   $ 20.88
Weighted Average Exercise Price Per Share, Exercisable at end of period $ 19.09 $ 19.09    
Weighted Average Contractual Remaining Term, Outstanding   6 years 29 days   6 years 3 months 14 days
Weighted Average Contractual Remaining Term, Exercisable   5 years 5 months 23 days    
Aggregate Intrinsic Value, Outstanding $ 16,980,000 $ 16,980,000   $ 10,638,000
Aggregate Intrinsic Value, Exercisable 15,685,000 15,685,000    
Options exercised, aggregate intrinsic value   2,600,000 $ 18,000  
Employee Stock Option        
Stock-based compensation        
Stock-based compensation expense 900,000 2,000,000.0    
Unrecognized compensation expense related to stock options (in dollars) $ 6,500,000 $ 6,500,000    
Weighted-average remaining recognition period   2 years 1 month 24 days