Income Taxes (Tables)

6 Months Ended

Jun. 30, 2015

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The reconciliation of income taxes for the three and six month periods ended June 30, 2015 and 2014, computed at the U.S. federal statutory income tax rate, compared to our effective income tax rate, was as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
(in millions of dollars)	2015			2014			2015			2014
Income tax expense computed at U.S. statutory income tax rate (35%)	$	13.7		$	12.2		$	11.7		$	8.5
Interest on Brazilian Tax Assessment	0.7			0.9			1.4			1.6
Correction of deferred tax	(1.6		)	—			(1.6		)	—
Miscellaneous	(1.4		)	0.5			—			0.6
Income tax expense as reported	$	11.4		$	13.6		$	11.5		$	10.7
Effective tax rate	29.2		%	39.0		%	34.4		%	44.2		%