v3.24.0.1
Stock-Based Compensation (Details)
 12 Months Ended
Dec. 31, 2023
USD ($)
period
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2021
USD ($)
Jun. 30, 2015
shares
Stock Based Compensation        
Shares granted 6,096,000      
2015 Plan        
Stock Based Compensation        
Shares reserved for issuance       3,451,495
Shares reserved for issuance as a proportion of common stock outstanding (as a percent) 4.00%      
2015 Plan | Minimum        
Stock Based Compensation        
Shares reserved for issuance 3,500,000      
Employee stock purchase plan        
Stock Based Compensation        
Shares reserved for issuance 3,772,225      
Additional shares reserved for issuance 880,000      
Shares reserved for issuance as a proportion of common stock outstanding (as a percent) 1.00%      
Price in relation to fair market value of common stock on the date of grant, lower range limit (as a percent) 85.00%      
Maximum number of shares a participant may receive during the period (in shares) 5,000      
Maximum amount of award or purchase during a calendar year | $ $ 25,000      
Maximum offering period, term 27 months      
Number of expected offering periods each year | period 2      
Offering period, expected term 6 months      
Maximum employee contribution of employee's cash compensation (as a percent) 15.00%      
Performance-based awards        
Stock Based Compensation        
Stock-based compensation expense | $ $ 54,200,000 $ 48,200,000    
Options to purchase common stock        
Stock Based Compensation        
Stock-based compensation expense | $ $ 191,808,000 $ 152,384,000 $ 115,219,000  
Shares available for issuance 1,102,000 3,263,000    
Options outstanding (in shares) 5,501,000 5,300,000    
Restricted stock units        
Stock Based Compensation        
Number of shares vested 2,750      
Shares granted 6,096      
Non-employee stock options        
Stock Based Compensation        
Stock-based compensation expense | $ $ 4,462,000 $ 2,445,000 $ 1,533,000  
Options outstanding (in shares) 0