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Shareholders' Equity and Long-Term Incentive Compensation - Components Used for Calculation of Basic and Diluted Income (Loss) (Details) - USD ($) shares in Thousands, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Numerator: |  |  |
Income from continuing operations | $ 201.8 | $ 144.7 | $ 19.8
Loss from discontinued operations, net of tax | $ (1.3) | $ (54.8) | $ (19.6)
Denominator: |  |  |
Weighted-average number of common shares used in basic income per share (in shares) | 46,187 | 45,545 | 45,345
Dilutive securities — Employee stock options and restricted stock units (in shares) | 891 | 1,067 | 876
Weighted-average number of common shares and dilutive securities used in diluted income per share (in shares) | 47,078 | 46,612 | 46,221

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