Income Tax Matters (Tables)

6 Months Ended

Jun. 30, 2017

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,
	2017		2016		2017		2016
Domestic	$	1.9	$	15.5	$	20.1	$	30.4
Foreign	0.3		0.2		0.6		0.4
Total	$	2.2	$	15.7	$	20.7	$	30.8