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Share-Based Compensation - Share-Based Compensation Expense (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2026 | Mar. 31, 2025
Share-based compensation expense |  |
Share-based compensation expense before taxes | $ 33.9 | $ 31.8
Stock options |  |
Share-based compensation expense |  |
Share-based compensation expense before taxes | 11.5 | 8.5
Related income tax benefit | (0.2) | (0.2)
Share-based compensation expense, net of taxes | 11.3 | 8.3
RSUs |  |
Share-based compensation expense |  |
Share-based compensation expense before taxes | 21.5 | 23.4
Related income tax benefit | (3.5) | (3.8)
Share-based compensation expense, net of taxes | 18.0 | 19.6
Cost of sales | Stock options |  |
Share-based compensation expense |  |
Share-based compensation expense before taxes | 0.0 | 0.0
Cost of sales | RSUs |  |
Share-based compensation expense |  |
Share-based compensation expense before taxes | 1.0 | 1.0
Research and development | Stock options |  |
Share-based compensation expense |  |
Share-based compensation expense before taxes | 0.1 | 0.1
Research and development | RSUs |  |
Share-based compensation expense |  |
Share-based compensation expense before taxes | 4.9 | 6.7
Selling, general, and administrative | Stock options |  |
Share-based compensation expense |  |
Share-based compensation expense before taxes | 11.4 | 8.4
Selling, general, and administrative | RSUs |  |
Share-based compensation expense |  |
Share-based compensation expense before taxes | $ 15.6 | $ 15.7

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