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Earnings Per Share
3 Months Ended
Mar. 31, 2014
Earnings Per Share [Abstract]  
Earnings Per Share

15. Earnings Per Share

     The following table sets forth the computation of basic and diluted earnings per share (in thousands, except per share data):

Three Months Ended
March 31,
20142013
Numerator for basic and diluted earnings
per share - net income (loss) attributable
to common stockholders $ 50,022$ 55,058
Denominator for basic earnings per
share - weighted average shares 289,606 260,036
Effect of dilutive securities:
Employee stock options 148 -
Non-vested restricted shares 540 -
Convertible senior unsecured notes 623 -
Dilutive potential common shares 1,311 -
Denominator for diluted earnings per
share - adjusted weighted average shares 290,917 260,036
Basic earnings per share $ 0.17$ 0.21
Diluted earnings per share $ 0.17$ 0.21

The diluted earnings per share calculations exclude the dilutive effect of 215,000 stock options for the three months ended March 31, 2014 because the exercise prices were higher than the average market price. The diluted earnings per share calculation for the three months ended 2013 excludes the dilutive effect of all common stock equivalents as they are anti-dilutive due to the loss from continuing operations. The Series I Cumulative Convertible Perpetual Preferred Stock was not included in the calculations as the effect of conversions into common stock was anti-dilutive.