Income Taxes (Tables)

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Schedule of effective income tax rate reconciliation

The following table provides details of income taxes (in millions, except percentages):

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Income before income taxes	$	150.9		$	245.2		$	192.3		$	385.8
Income tax provision	$	34.4		$	65.4		$	41.4		$	97.2
Effective tax rate	22.8		%	26.7		%	21.5		%	25.2		%