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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of stock-based compensation expense

A summary of the Company’s stock-based compensation expense (benefit) is presented in the following table:

	Three Months Ended   September 30,								Nine Months Ended   September 30,
(in millions)	2018				2017				2018				2017
PRSU expense (benefit)	$	0.7			$	1.0			$	2.2			$	(7.1	)
Option expense	1.6				1.8				5.4				5.6
RSU/DSU expense	4.2				3.1				12.0				10.0
Total stock-based compensation expense	$	6.5			$	5.9			$	19.6			$	8.5

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- References

No definition available.

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- Definition

Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

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