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Earnings (Loss) Per Share
 12 Months Ended
Dec. 31, 2012
Earnings Per Share [Abstract]  
Earnings (Loss) Per Share

Basic earnings (loss) per share is calculated by dividing net income (loss) available to common stockholders by the weighted-average number of common shares outstanding. Diluted earnings (loss) per share is calculated by dividing net income (loss) available to common stockholders that has been adjusted for dilutive securities, by the weighted-average number of common shares outstanding including dilutive securities.

The following is a reconciliation of the calculation of basic and diluted loss per share (in thousands, except share and per-share data):
 
Years Ended December 31,
 
2012
 
2011
 
2010
Basic and Diluted (Loss) Earnings per Share Calculation:
 
 
 
 
 
Numerator:
 
 
 
 
 
Loss from continuing operations
$
(16,026
)
 
$
(7,999
)
 
$
(10,799
)
(Loss) income from discontinued operations
(566
)
 
321

 
1,627

Net loss
$
(16,592
)
 
$
(7,678
)
 
$
(9,172
)
Weighted-average number of common shares outstanding—basic and diluted
180,826,124

 
166,667,459

 
144,463,587

 
 
 
 
 
 
Basic and diluted (loss) earnings per share:
 
 
 
 
 
Continuing operations
$
(0.09
)
 
$
(0.05
)
 
$
(0.07
)
Discontinued operations
(0.00
)
 
0.00

 
0.01

Total
$
(0.09
)
 
$
(0.05
)
 
$
(0.06
)


We did not include the following shares in our calculation of diluted loss per share as they would be anti-dilutive:
 
Years Ended December 31,
 
2012
 
2011
 
2010
Unvested restricted common stock
161,266

 
513,657

 
1,034,235

Unexercised stock appreciation rights
262,461

 
262,461

 
262,461

Shares related to unvested MSUs
237,956

 
152,675

 
109,648

Total
661,683

 
928,793

 
1,406,344