Income Per Common Share Computations (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

	Three Months Ended March 31,
(in millions, except per share data)	2016			2015
Numerator for basic income (loss) per common share:
Net income (loss)	$	2.8		$	(1.6	)
Net income (loss) allocated to participating securities	(0.1		)	—
Numerator for basic income (loss) per common share	$	2.7		$	(1.6	)
Numerator for diluted income (loss) per common share	$	2.8		$	(1.6	)
Denominator for basic and diluted net income (loss) per common share:
Basic	16.5			17.3
Plus dilutive effect of stock options and restricted stock	0.2			—
Plus dilutive effect of participating securities	0.3			—
Diluted	17.0			17.3
Income (loss) per common share:
Basic	$	0.17		$	(0.09	)
Diluted	$	0.16		$	(0.09	)