Income Tax Matters (Tables)

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Tax Provision

The provision for income taxes for each period presented consisted of the following (in millions of dollars):

	Quarter Ended				Six Months Ended
	June 30,				June 30,
	2018		2017		2018		2017
Domestic	$	7.5	$	1.9	$	13.1	$	20.1
Foreign	0.3		0.3		0.6		0.6
Total	$	7.8	$	2.2	$	13.7	$	20.7