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Employee Savings Plan and Employee Stock Purchase Plan - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Defined Contribution Plan Disclosure [Line Items]        
401(k) minimum age of eligibility for participation     18 years  
401(k) eligibility minimum service period     30 days  
Employee vested percentage in salary deferrals and roll over contributions     100.00%  
Minimum period for vesting 100% contributions     2 years  
Minimum period for vesting of discretionary contributions     2 years  
Matching contribution $ 4,200,000 $ 5,400,000 $ 10,400,000 $ 10,000,000
Employee stock purchase plan overlapping offering period     24 months  
Compensation expense related to ESPP     $ 60,600,000 $ (69,700,000)
Employee Stock Purchase Plan [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Employees Company's common stock shares purchase limit percentage 10.00%   10.00%  
Employees Company's common stock shares purchase limit amount     $ 25,000  
Purchase price of common stock expressed as a percentage of its fair market value     85.00%  
Maximum number of shares that may be purchased by a participant     2,000  
Share of common stock purchase maximum     2,000,000.0  
Purchase of shares of common stock     35,284 50,325
After Two Years Of Employment [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Matching contributions, vesting percentage     100.00%  
One Hundred Percent Match For Percent Of Participants Contribution [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Employer contribution percentage     100.00%  
Percentage of salary deferrals     1.00%  
50% Matching Contribution [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Employer contribution percentage     50.00%  
Minimum [Member] | 50% Matching Contribution [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Percentage of salary deferrals     2.00%  
Maximum [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Percentage of salary deferrals     3.50%  
Maximum [Member] | 50% Matching Contribution [Member]        
Defined Contribution Plan Disclosure [Line Items]        
Percentage of salary deferrals     6.00%