Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2014

Earnings Per Share [Abstract]

Calculation of basic and diluted earnings per share

Basic and diluted earnings per share were calculated as follows, for each period presented:

	Quarter Ended				Nine Months Ended
	September 30,				September 30,
	2014		2013		2014		2013
Numerator:
Net income	$	15.9	$	25.4	$	56.2	$	77.5
Denominator — Weighted-average common shares outstanding (in thousands):
Basic1	17,707		18,548		17,853		18,915
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares	134		165		143		167
Add: dilutive effect of warrants	778		345		596		185
Diluted2	18,619		19,058		18,592		19,267
Earnings per common share, Basic:
Net income per share	$	0.90	$	1.37	$	3.15	$	4.09
Earnings per common share, Diluted:
Net income per share	$	0.85	$	1.34	$	3.02	$	4.02

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¹  The basic weighted-average number of common shares outstanding during the period excludes non-vested common shares, restricted stock units, performance shares and market-based shares.

²  The diluted weighted-average number of common shares outstanding during the periods were calculated using the treasury method.