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Stockholders' Equity and Stock-Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Class of Treasury Stock
A summary of the stock repurchase activities for the years ended December 31, 2025 and 2024 is as follows (in millions, except per share amounts):
Year Ended December 31,
20252024
Aggregate purchase price(1)
$1,603.1 $423.6 
Shares repurchased15.9 5.5 
Average price paid per share(1)
$100.63 $77.13 
(1) Aggregate purchase price and average price paid per share for the year of 2025 include costs associated with the repurchases but exclude the 1% excise tax accrued on our share repurchases as a result of the Inflation Reduction Act of 2022.
Schedule of Stock Option Activities
The following table summarizes the option activity under our stock plans and related information (in millions, except years and per share amounts):
Number of
Shares
Underlying
Outstanding Options		Weighted-
Average
Exercise
Price per Share 		Weighted-
Average
Remaining
Contractual
Term (In Years) 		Aggregate
Intrinsic
Value
Balance—December 31, 20243.1 $6.71 1.5$320.9 
Options granted — — 
Options exercised (2.2)4.10 
Options canceled(0.1)14.70 
Balance—December 31, 20250.8 $12.93 2.7$93.3 
Vested and exercisable—December 31, 20250.8 $12.93 2.7$93.3 
Schedule of Restricted Stock Units Activity
A summary of the RSU activity is presented below (in millions, except years and per share amounts):
Number of
Shares		Weighted-
Average Grant
Date Fair Value Per Share
Balance—December 31, 202428.6 $45.46 
       RSUs granted 10.7 103.34 
       RSUs vested(8.6)37.98 
       RSUs forfeited/canceled(2.6)51.48 
Unvested balance—December 31, 202528.1 $69.81 
Schedule of Stock-Based Compensation Expense
The following table summarizes the stock-based compensation expense related to our equity awards (in millions):
Year Ended December 31,
202520242023
Cost of revenue $26.9 $15.8 $12.8 
Research and development 260.7 211.8 172.2 
Sales and marketing
104.1 78.8 71.1 
General and administrative 47.5 49.0 40.7 
           Total stock-based compensation $439.2 $355.4 $296.8