Earnings (Loss) per Common Share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings (Loss) per Common Share

Schedule of computation of income per share

	Year ended December 31,
	2022		2021		2020
	(in millions, except share data)
Loss from continuing operations	$	(2.5)	$	(68.6)	$	(108.3)
Income from discontinued operations	$	—	$	839.1	$	122.7
Net (loss) income	$	(2.5)	$	770.5	$	14.4
Basic weighted-average shares		83,930,984		82,720,934		81,561,707
Effect of dilutive securities:
Restricted stock awards		—		—		—
Diluted weighted-average shares		83,930,984		82,720,934		81,561,707
Basic and diluted loss per common share - continuing operations
Basic	$	(0.03)	$	(0.83)	$	(1.33)
Diluted	$	(0.03)	$	(0.83)	$	(1.33)
Basic and diluted earnings per common share - discontinued operations
Basic	$	—	$	10.14	$	1.51
Diluted	$	—	$	10.14	$	1.51
Basic and diluted (loss) earnings per common share
Basic	$	(0.03)	$	9.31	$	0.18
Diluted	$	(0.03)	$	9.31	$	0.18