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Equity Plans and Share Repurchase Program (Tables) | 9 Months Ended
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Sep. 30, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Share-based Compensation, Restricted Stock Units Award Activity | The following table summarizes the activity and related information for RSUs for the periods presented below (in millions, except per share amounts):
| Restricted Stock Units Outstanding
| Number of Shares |  | Weighted-Average Grant Date Fair Value per Share
Balance—December 31, 2024 | 8.4 |  |  | $ | 64.70 |
Granted | 2.9 |  |  | 104.05 |
Forfeited | (0.7) |  |  | 74.80 |
Vested | (2.8) |  |  | 60.50 |
Balance—September 30, 2025 | 7.8 |  |  | $ | 80.32 |
Share-Based Payment Arrangement, Performance Shares, Activity | The following table summarizes the activity and related information for PSUs for the periods presented below (in millions, except per share amounts):
| Performance Stock Units Outstanding
| Number of Shares |  | Weighted-Average Grant Date Fair Value per Share
Balance—December 31, 2024 | 0.4 |  |  | $ | 94.93 |
Granted | 0.1 |  |  | 165.91 |
Forfeited | (0.1) |  |  | 113.36 |
Vested | (0.2) |  |  | 91.19 |
Balance—September 30, 2025 | 0.2 |  |  | $ | 117.94 |
Schedule of Share-based Compensation, Shares Withheld for Taxes | The following summarizes the number and value of the shares withheld for employee taxes (in millions):
| Three Months Ended |  | Nine Months Ended
| September 30, 2025 |  | September 30, 2024 |  | September 30, 2025 |  | September 30, 2024
Shares withheld for taxes | 0.3 |  |  | 0.3 |  |  | 1.0 |  |  | 1.2 |
Amount withheld for taxes | $ | 26.6 |  |  | $ | 16.5 |  |  | $ | 103.8 |  |  | $ | 79.6 |
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions | The following table summarizes the weighted-average assumptions relating to our employee stock options:
| Three Months Ended |  | Nine Months Ended
| September 30, 2025 |  | September 30, 2024 |  | September 30, 2025 |  | September 30, 2024
Expected term in years | 4.5 |  | 4.5 |  | 4.5 |  | 4.5
Volatility | 42.2 | % |  | 41.7 | % |  | 41.7 | % |  | 42.8 | %
Risk-free interest rate | 3.8 | % |  | 3.7 | % |  | 4.2 | % |  | 4.3 | %
Dividend rate | — | % |  | — | % |  | — | % |  | — | %
Schedule of Share-based Compensation, Stock Options, Activity | The following table summarizes the stock option activity and related information for the periods presented below (in millions, except exercise prices and contractual life):
| Options Outstanding
| Number of Shares |  | Weighted- Average Exercise Price |  | Weighted- Average Remaining Contractual Life (Years) |  | Aggregate Intrinsic Value
Balance—December 31, 2024 | 8.7 |  |  | $ | 37.81 |  |  | 3.1 |  | $ | 493.8 |
Granted | 0.7 |  |  | 105.38 |  |  |  |  |
Forfeited | (0.1) |  |  | 72.16 |  |  |  |  |
Exercised | (1.8) |  |  | 21.11 |  |  |  |  |
Balance—September 30, 2025 | 7.5 |  |  | $ | 47.80 |  |  |  |  |
Options vested and expected to vest—September 30, 2025 | 7.5 |  |  | $ | 47.80 |  |  | 3.1 |  | $ | 290.0 |
Options exercisable—September 30, 2025 | 5.8 |  |  | $ | 37.84 |  |  | 2.4 |  | $ | 268.3 |
Schedule of Share-based Compensation, Stock Options, Activity, Additional Information | Additional information related to our stock options is summarized below (in millions, except per share amounts):
| Three Months Ended |  | Nine Months Ended
| September 30, 2025 |  | September 30, 2024 |  | September 30, 2025 |  | September 30, 2024
Weighted-average fair value per share granted | $ | 31.84 |  |  | $ | 29.86 |  |  | $ | 42.39 |  |  | $ | 27.05 |
Intrinsic value of options exercised | $ | 17.5 |  |  | $ | 42.6 |  |  | $ | 148.7 |  |  | $ | 112.5 |
Fair value of options vested | $ | 5.7 |  |  | $ | 6.4 |  |  | $ | 20.7 |  |  | $ | 25.0 |
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | Stock-based compensation expense, including stock-based compensation expense related to awards classified as liabilities, is included in costs and expenses (in millions):
| Three Months Ended |  | Nine Months Ended
| September 30, 2025 |  | September 30, 2024 |  | September 30, 2025 |  | September 30, 2024
Cost of product revenue | $ | 0.6 |  |  | $ | 0.5 |  |  | $ | 1.6 |  |  | $ | 1.4 |
Cost of service revenue | 6.9 |  |  | 6.3 |  |  | 20.4 |  |  | 19.0 |
Research and development | 25.4 |  |  | 21.9 |  |  | 73.5 |  |  | 63.0 |
Sales and marketing | 30.0 |  |  | 27.0 |  |  | 86.2 |  |  | 79.6 |
General and administrative | 9.3 |  |  | 10.7 |  |  | 27.3 |  |  | 30.7 |
Total stock-based compensation expense | $ | 72.2 |  |  | $ | 66.4 |  |  | $ | 209.0 |  |  | $ | 193.7 |
Schedule of Employee Service Share based Compensation Allocation of Recognized Period Costs by Award Type | The following table summarizes stock-based compensation expense, including stock-based compensation expense related to awards classified as liabilities, by award type (in millions):
| Three Months Ended |  | Nine Months Ended
| September 30, 2025 |  | September 30, 2024 |  | September 30, 2025 |  | September 30, 2024
RSUs | $ | 60.8 |  |  | $ | 54.8 |  |  | $ | 177.9 |  |  | $ | 160.8 |
Stock options | 6.7 |  |  | 6.9 |  |  | 20.1 |  |  | 21.3 |
PSUs | 4.7 |  |  | 4.7 |  |  | 11.0 |  |  | 11.6 |
Total stock-based compensation expense | $ | 72.2 |  |  | $ | 66.4 |  |  | $ | 209.0 |  |  | $ | 193.7 |
Income Tax Benefit from Stock Option Plans | Total income tax benefit associated with stock-based compensation that is recognized in the condensed consolidated statements of income is (in millions):
| Three Months Ended |  | Nine Months Ended
| September 30, 2025 |  | September 30, 2024 |  | September 30, 2025 |  | September 30, 2024
Income tax benefit associated with stock-based compensation | $ | 15.9 |  |  | $ | 14.7 |  |  | $ | 45.9 |  |  | $ | 42.9 |

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