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Earnings Per Share (Tables)
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Calculation of Weighted Average Common Shares Outstanding used in Computation of Diluted Earnings Per Share
The following table summarizes the calculation of weighted average common shares outstanding used in the computation of diluted earnings per share, for the years ended December 31, 2013, 2012 and 2011 (in thousands):
 
Income (Loss)
 
Weighted Average Shares
 
Earnings (Loss) Per Share
 
(In thousands, except per share amounts)
Year Ended December 31, 2011
 
 
 
 
 
Basic earnings per share
$
52,482

 
398,851

 
$
0.13

Effect of dilutive securities
 
 
 
 
 
Restricted stock
—

 
7,794

 
 
Diluted earnings per share
$
52,482

 
406,645

 
$
0.13

Year Ended December 31, 2012
 
 
 
 
 
Basic earnings per share
$
86,046

 
453,595

 
$
0.19

Effect of dilutive securities
 
 
 
 
 
Restricted stock
—

 
2,420

 
 
Diluted earnings per share
$
86,046

 
456,015

 
$
0.19

Year Ended December 31, 2013
 
 
 
 
 
Basic loss per share
$
(609,414
)
 
481,148

 
$
(1.27
)
Effect of dilutive securities
 
 
 
 
 
Restricted stock(1)
—

 
—

 
 
Diluted loss per share
$
(609,414
)
 
481,148

 
$
(1.27
)

____________________
(1)
Restricted stock awards covering 0.5 million shares were excluded from the computation of loss per share because their effect would have been antidilutive.