Income Taxes (Tables)

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Schedule of Effective Income Tax Rate Reconciliation

The reconciliation of income taxes for the three and nine months ended September 30, 2017 and 2016, computed at the U.S. federal statutory income tax rate, compared to our effective income tax rate, was as follows:

	Three Months Ended September 30,						Nine Months Ended September 30,
(in millions of dollars)	2017			2016			2017			2016
Income tax expense computed at U.S. statutory income tax rate (35%)	$	17.5		$	13.2		$	30.8		$	37.5
Interest on Brazilian Tax Assessment	0.5			0.8			1.8			2.1
Realized foreign exchange net gain (loss) on intercompany loans	—			—			—			(10.7		)
Excess tax benefit from stock-based compensation	—			—			(5.5		)	—
Revaluation of previously held equity interest	—			2.2			—			(12.0		)
Non-deductible expenses related to acquisitions	1.1			—			1.7			—
Miscellaneous	0.1			(1.2		)	1.5			0.7
Income tax expense as reported	$	19.2		$	15.0		$	30.3		$	17.6
Effective tax rate	38.6		%	39.8		%	34.4		%	16.4		%