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Income Taxes (Tables)
9 Months Ended
Sep. 30, 2021
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit)
The Company's provision for income taxes in interim periods is computed by applying the estimated annual effective tax rates to income or loss before income taxes for the period. In addition, non-recurring or discrete items are recorded during the period(s) in which they occur.
 Three Months Ended
September 30,
Nine Months Ended
September 30,
 2021202020212020
Provision for income taxes$20.4 $26.6 $75.1 $84.2 
Effective tax rate18.2 %22.6 %19.3 %26.2 %