Share-based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

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

Schedule about share-based compensation expense

Information on share-based compensation expense is presented below:

	Three Months Ended June 30,				Six Months Ended June 30,
Share-based Compensation Expense	2018		2017		2018		2017
Stock options	$	0.3	$	0.2	$	2.0	$	1.7
Restricted stock	0.5		0.4		2.4		2.3
Restricted stock units issued to Directors	0.3		0.3		0.6		0.7
Performance shares	0.6		0.4		1.1		0.8
Equity-based long-term performance plan	0.1		—		0.2		—
Total share-based compensation expense	$	1.8	$	1.3	$	6.3	$	5.5