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Stock-Based Compensation Expense - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Number of Options      
Beginning balance (in shares) 695,588    
Granted (in shares) 72,209    
Exercised (in shares) (250,192)    
Forfeited and canceled (in shares) (81,511)    
Ending balance (in shares) 436,094 695,588  
Vested (in shares) 335,862    
Vested or expected to vest (in shares) 420,190    
Weighted Average Exercise Price      
Beginning balance (in dollars per share) $ 109.73    
Granted (in dollars per share) 276.36    
Exercised (in dollars per share) 67.30    
Forfeited and canceled (in dollars per share) 250.47    
Ending balance (in dollars per share) 135.37 $ 109.73  
Vested (in dollars per share) 95.35    
Vested or expected to vest (in dollars per share) $ 130.18    
Options outstanding, weighted average remaining contractual life 3 years 9 months 18 days    
Options vested, weighted average remaining contractual life 2 years 4 months 24 days    
Vested or expected to vest, weighted average remaining contractual term 3 years 7 months 6 days    
Intrinsic value, exercised in the period $ 52.7 $ 31.7 $ 86.5
Intrinsic value, options outstanding 43.2    
Intrinsic value, options vested 43.1    
Intrinsic value, options vested and expected to vest $ 43.2