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Income Taxes - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Income Tax Disclosure [Abstract]        
Income tax (expense) benefit $ (97.1) $ (56.3) $ (153.4) $ (100.2)
Effective income tax rate reconciliation, percent 26.20% 22.90% 23.20% 21.90%