Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Reconciliation of Net Earnings to Net Earnings Attributable to Common Shares Used in Basic and Diluted Calculation

	2016			2015			2014
Earnings from continuing operations	$	93.9		$	26.6		$	79.1
Earnings allocated to participating non-vested share awards		(0.3	)		(0.1	)		(0.4	)
Earnings from continuing operations attributable to common shares	$	93.6		$	26.5		$	78.7

Reconciliation of Basic Shares Outstanding to Diluted Shares Outstanding

	2016		2015		2014
	(in millions)
Basic shares outstanding		55.4		55.5		55.0
Dilutive effect of common stock equivalents		0.3		0.4		0.4
Diluted shares outstanding		55.7		55.9		55.4