Income Taxes (Tables)

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The following table shows our effective tax rate for the three months ended March 31, 2018 and March 31, 2017:

	Three months ended March 31
(in millions)	2018			2017
Income before income taxes and equity in net loss of unconsolidated entities	$	56.8		$	27.1
Equity in net loss of unconsolidated entities	(1.5		)	(0.8		)
Total	$	55.3		$	26.3
Income tax expense	$	13.4		$	8.3
Effective tax rate	24.2		%	31.6		%

Schedule of Gross Unrecognized Tax Benefits

The table below provides information concerning our gross unrecognized tax benefits as of March 31, 2018, and December 31, 2017, as well as the effect these gross unrecognized tax benefits would have on our income tax expense, if they were recognized.

	As of March 31		As of December 31
(in millions)	2018		2017
Gross unrecognized tax benefits	$	16.6	$	18.7
Gross unrecognized tax benefits that would affect income tax expense	$	12.9	$	15.0
Decrease in income tax expense upon recognition of gross unrecognized tax benefits	$	12.4	$	14.4

Schedule of Liabilities for Unrecognized Tax Benefits

Our Unaudited Condensed Consolidated Balance Sheets include the following liabilities for unrecognized tax benefits. These amounts include interest and penalties, less any associated tax benefits.

	As of March 31		As of December 31
Liabilities for Unrecognized Tax Benefits (in millions)	2018		2017
Current liability	$	6.3	$	8.7
Non-current liability	7.0		7.0
Total liability for unrecognized tax benefits	$	13.3	$	15.7