Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Calculation of basic and diluted earnings per share

Basic and diluted net income per share for 2014, 2013 and 2012 were calculated as follows:

	Year Ended December 31,
	2014		2013		2012
Numerator:
Net income	$	71.8	$	104.8	$	85.8
Denominator - Weighted-average common shares outstanding (in thousands):
Basic1	17,818		18,827		19,115
Add: dilutive effect of non-vested common shares, restricted stock units and performance shares	179		178		163
Add: dilutive effect of warrants	596		241		—
Diluted2	18,593		19,246		19,278
Net income per common share, Basic:	$	4.02	$	5.56	$	4.49
Net income per common share, Diluted:	$	3.86	$	5.44	$	4.45

_____________

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

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