LONG-TERM INCENTIVE EMPLOYEE COMPENSATION

6 Months Ended

Jun. 30, 2018

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

LONG-TERM INCENTIVE EMPLOYEE COMPENSATION

LONG-TERM INCENTIVE EMPLOYEE COMPENSATION

Our long-term incentive plan (LTIP) costs are primarily recorded within general and administrative expenses. The following table provides the components of LTIP costs for the three and six months ended June 30, 2018 and 2017.

	Three Months				Six Months
For the Periods Ended June 30	2018		2017		2018		2017
Equity-based awards	$	5.7	$	3.6	$	10.2	$	7.3
Liability-based awards	0.7		0.4		0.8		0.9
Total share-based compensation expense	$	6.4	$	4.0	$	11.0	$	8.2

At June 30, 2018, there was $24.5 of total unrecognized compensation cost related to non-vested equity awards. This cost is expected to be recognized ratably over a weighted-average period of 2.2 years. Additionally, unrecognized compensation cost related to liability-based awards was $4.0, which is expected to be recognized ratably over a weighted-average period of 2.1 years.

Year-to-Date 2018 LTIP Activity

The majority of our LTIP awards are granted during the first quarter of each year and vest on the completion of a three-year service period. During the six months ended June 30, 2018, we granted the following LTIP awards as provided in the table below:

	# of Awards Granted	Weighted Average Grant Date Fair Value Per Share
Restricted stock units (RSUs)	0.3		$	52.94
Performance stock units (PSUs)	0.1		$	57.15

During the six months ended June 30, 2018 and 2017, 0.2 and 0.3 non-qualified stock options were exercised resulting in proceeds of $4.7 and $6.5, respectively. During both the six months ended June 30, 2018 and 2017, RSUs of 0.2 vested and were issued, respectively. During the six months ended June 30, 2018, PSUs of 0.1 that vested on December 31, 2017 were issued. There were no PSUs that vested on December 31, 2016 because the minimum performance requirements were not met.