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Earnings (Loss) Per Share (Tables)
 12 Months Ended
Dec. 31, 2012
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted
The following table sets forth the computation of basic and diluted earnings (loss) per share (shares in thousands):
 
 
Year Ended December 31, 
 
2012
 
2011
 
2010
Numerator:
 
 
 
 
 
Income (loss) from continuing operations
$
75

 
$
101

 
$
(22
)
Convertible debt interest—1 7/8 percent notes
—

 
—

 
—

Income (loss) from continuing operations available to common stockholders
75

 
101

 
(22
)
Loss from discontinued operation
—

 
—

 
(4
)
Net income (loss) available to common stockholders
$
75

 
$
101

 
$
(26
)
Denominator:
 
 
 
 
 
Denominator for basic earnings (loss) per share—weighted-average common shares
82,960

 
62,184

 
60,455

Effect of dilutive securities:
 
 
 
 
 
Employee stock options and warrants
720

 
1,037

 
—

Convertible subordinated notes—1 7/8 percent
—

 
1,015

 
—

Convertible subordinated notes—4 percent
10,632

 
8,532

 
—

Restricted stock units
536

 
581

 
—

Denominator for diluted earnings (loss) per share—adjusted weighted-average common shares
94,848

 
73,349

 
60,455

Basic earnings (loss) per share:
 
 
 
 
 
Income (loss) from continuing operations
$
0.91

 
$
1.62

 
$
(0.38
)
Loss from discontinued operation
—

 
—

 
(0.06
)
Net income (loss)
$
0.91

 
$
1.62

 
$
(0.44
)
Diluted earnings (loss) per share:
 
 
 
 
 
Income (loss) from continuing operations
$
0.79

 
$
1.38

 
$
(0.38
)
Loss from discontinued operation
—

 
—

 
(0.06
)
Net income (loss)
$
0.79

 
$
1.38

 
$
(0.44
)