Earnings (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2019

Earnings Per Share [Abstract]

Summary of Number of Participating Securities and Earning Allocations to those Securities

The following table presents the number of participating securities and earnings allocated to those securities (in millions).

	Three Months Ended
	March 31,
	2019		2018
Earnings allocated to participating shareholders	$	—	$	—
Number of participating securities		1.1		1.0

Summary of Diluted Earning Per Share

The following table presents the number of common shares used in the calculation of net loss per share from continuing operations (in millions).

	Three Months Ended
	March 31,
	2019		2018
Weighted-average number of common shares-basic		25.3		25.1
Dilutive potential common shares		—		—
Weighted-average number of common shares-dilutive		25.3		25.1