Stock-Based Compensation Plans

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement, Noncash Expense [Abstract]

Schedule of Stock Based Compensation Expense

Stock-based compensation expense consists of the following:

(In millions)	For the Three Months Ended  June 30,				For the Six Months Ended  June 30,
	2020		2019		2020		2019
Restricted stock	$	0.5	$	0.7	$	1.1	$	1.5
Restricted stock units	0.9		0.8		2.1		2.2
Total	$	1.4	$	1.5	$	3.2	$	3.7

Summary of Restricted Stock Activity

A summary of the non-vested restricted stock activity is presented below:

Restricted Stock	Number of Shares	Weighted Average Grant-Date Fair Value Per Share
Non-vested as of December 31, 2019	137,503	$	125.04
Vested	(14,633)	182.61
Forfeited	(60)	318.34
Non-vested as of June 30, 2020	122,810	$	118.09

Summary Of Restricted Stock Units Activity

A summary of the restricted stock unit activity is presented below:

Restricted Stock Units	Number of Restricted Stock Units	Weighted Average Grant-Date Fair Value Per Share
Outstanding as of December 31, 2019	428,831	$	132.99
Granted	5,870	436.89
Converted	(21,971)	105.97
Forfeited	(85)	434.60
Outstanding as of June 30, 2020	412,645	$	138.68