Income Taxes (Tables)

3 Months Ended

Sep. 30, 2017

Income Taxes [Abstract]

Schedule of Provision (Benefit) for Income Taxes

	For the three months ended September 30,
	2017		2016
		(in millions)
Expected provision at the statutory rate	$	10.0	$	7.8
Increase/(decrease) due to:
Stock-based compensation		1.5		3.3
State income taxes benefit, net of federal benefit		0.6		0.7
Transaction costs not deductible for tax purposes		0.1		—
Change in statutory tax rate		—		(1.7)
Foreign tax rate differential		(2.2)		(0.7)
Change in valuation allowance		(5.7)		(2.4)
Other, net		1.1		(0.4)
Provision for income taxes	$	5.4	$	6.6