Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Schedule of Basic and Diluted Net Income Per Common Share

The following table sets forth the computation of basic and diluted net income per common share (dollars and shares in millions, except per share amounts):

	Three Months Ended September 30,
	2017					2016
	Net Income		Weighted-Average Shares Outstanding	Net Income Per Common Share		Net Income		Weighted-Average Shares Outstanding	Net Income Per Common Share
Basic EPS (1)	$	13.7	46.3	$	0.29	$	13.5	46.3	$	0.29
Effect of dilutive common share equivalents:
Restricted stock units	—		—	—		—		0.1	—
Performance shares	—		0.1	—		—		0.1	—
Diluted EPS (1)	$	13.7	46.4	$	0.29	$	13.5	46.5	$	0.29

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(1)    Basic and diluted earnings per share are calculated based on unrounded actual amounts.

	Nine Months Ended September 30,
	2017					2016
	Net Income		Weighted-Average Shares Outstanding	Net Income Per Common Share		Net Income		Weighted-Average Shares Outstanding	Net Income Per Common Share
Basic EPS (1)	$	22.7	46.3	$	0.49	$	35.5	46.3	$	0.77
Effect of dilutive common share equivalents:
Restricted stock units	—		—	—		—		0.1	(0.01		)
Performance shares	—		0.1	—		—		0.1	—
Diluted EPS (1)	$	22.7	46.4	$	0.49	$	35.5	46.5	$	0.76

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(1)    Basic and diluted earnings per share are calculated based on unrounded actual amounts.