Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Computation of basic and diluted earnings per share

The computation of basic and diluted earnings per share follows.  

	Three Months Ended March 31, 2020					Three Months Ended March 31, 2019
	Income (Loss)		Average Shares	EPS		Income (Loss)		Average Shares	EPS
	(in millions, except per share amounts)
Net income	$	31.6				$	27.7
Unvested restricted share participation	(0.3)					(0.3)
Net income per common share – basic	31.3		47.8	$	0.65	27.4		47.9	$	0.57
Effect of dilutive securities:
Nonparticipating unvested restricted shares	—		0.6			—		0.6
Net income per common share – diluted	$	31.3	48.4	$	0.65	$	27.4	48.5	$	0.56