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Equity-Based Compensation - Summary of Equity-based Compensation (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Payment Arrangement [Abstract] |  |  |
Equity-based compensation expense | $ 48.5 | $ 40.7 | $ 43.7
Income tax benefit | (9.8) | (9.9) | (15.3)
Equity-based compensation expense, net of tax | 38.7 | $ 30.8 | $ 28.4
Compensation cost not yet recognized | $ 48.0 |  |
Compensation cost not yet recognized, period for recognition | 1 year 9 months 18 days |  |

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