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Stock-Based Compensation - Components of Stock-Based Compensation Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Share-Based Payment Arrangement [Abstract] |  |  |  |
Equity classified awards expense | $ 3.2 | $ 3.9 | $ 9.9 | $ 12.7
Liability classified awards expense | 0.1 | 0.1 | (0.1) | 0.2
Total stock-based compensation expense | $ 3.3 | $ 4.0 | $ 9.8 | $ 12.9

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