Earnings (Loss) per Common Share (Tables)

12 Months Ended

Dec. 31, 2019

Earnings (Loss) per Common Share

Schedule of computation of income per share

	Year ended
	December 31,
	2019		2018		2017
	(in millions, except share data)
Net income (loss)	$	36.4	$	(87.3)	$	185.3
Basic weighted-average shares		80,713,926		81,808,425		78,778,640
Effect of dilutive securities:
Restricted stock awards		475,236		—		137,306
Diluted weighted-average shares		81,189,162		81,808,425		78,915,946
Basic net income (loss) per share	$	0.45	$	(1.07)	$	2.35
Diluted net income (loss) per share	$	0.45	$	(1.07)	$	2.35