Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2020

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Share-based Payment Arrangement, Cost by Plan [Table Text Block]

The following table summarizes the Company's pre-tax compensation expense and related income tax benefit during the three months ended March 31, 2020 and 2019 related to the Company's performance units and restricted stock units.

	Three Months Ended March 31,
(In millions)	2020		2019
Performance units:
Total shareholder return	$	1.7	$	2.2
Earnings per share	0.2		0.5
Total performance units	1.9		2.7
Restricted stock units	0.1		0.3
Total compensation expense	$	2.0	$	3.0
Income tax benefit	$	0.5	$	0.8