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Earnings Per Share
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
EARNINGS PER SHARE
EARNINGS PER SHARE
Basic earnings per share is computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding during each period. Diluted earnings per share reflect the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock. For the three and nine months ended September 30, 2013, 1,142,530 shares of common stock equivalents related to equity-based awards have not been included in the diluted per share calculation as the shares would be antidilutive. For the three and nine months ended September 30, 2012, 772,368 and 640,660 shares, respectively, of common stock equivalents related to equity-based awards have not been included in the diluted per share calculation as the shares would be antidilutive. The 3.25% Convertible Senior Notes were not included in the computation of diluted earnings per share for the three and nine months ended September 30, 2013 and 2012 because there is no excess value upon conversion over the principal amount of the Notes.

 
Three months ended
September 30,
 
Nine months ended September 30,
In thousands except per share amounts
2013
 
2012
 
2013
 
2012
 
 
 
 
 
 
 
 
Net income (loss) available to common stockholders
$
(46,265
)
 
$
(15,821
)
 
$
(69,035
)
 
$
11,127

Weighted average shares
 
 
 
 
 
 
 
Basic
100,778

 
89,429

 
96,893

 
89,550

Effect of share based compensation plans
—

 
—

 
—

 
140

Diluted
100,778

 
89,429

 
96,893

 
89,690

Income (loss) per share
 
 
 
 
 
 
 
Basic
$
(0.46
)
 
$
(0.18
)
 
$
(0.71
)
 
$
0.12

Diluted
$
(0.46
)
 
$
(0.18
)
 
$
(0.71
)
 
$
0.12