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Earnings Per Share
3 Months Ended
Mar. 31, 2015
Earnings Per Share [Abstract]  
Earnings Per Share
Earnings (Loss) Per Share
Basic earnings (loss) per share is computed by dividing income available to common stockholders by the weighted average number of shares outstanding for the periods presented. The calculation of diluted earnings (loss) per share includes the impact of potentially dilutive non-vested restricted shares and PSUs outstanding during the periods presented, unless their effect is anti-dilutive. There are no adjustments made to income (loss) available to common stockholders in the calculation of diluted earnings (loss) per share.
The following is a calculation of the basic and diluted weighted-average shares outstanding for the three months ended March 31, 2015 and 2014: 
 
Three Months Ended March 31,
 
2015
 
2014
 
(In thousands)
Basic weighted average common shares outstanding
109,303

 
99,560

Dilution effect of stock awards at end of period(1)

 
489

Diluted weighted average common shares outstanding
109,303

 
100,049

Anti-dilutive stock-based compensation awards
3,046

 
1,047


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(1)
No unvested stock awards were included in computing loss per share for the three months ended March 31, 2015 because the effect was anti-dilutive.