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Earnings Per Share
3 Months Ended
Mar. 31, 2017
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,
20172016
Numerator for basic and diluted earnings
per share - net income (loss) attributable
to common stockholders $312,639$148,969
Denominator for basic earnings per
share - weighted average shares 362,534355,076
Effect of dilutive securities:
Employee stock options 70101
Non-vested restricted shares 397253
Redeemable shares1,651621
Dilutive potential common shares 2,118975
Denominator for diluted earnings per
share - adjusted weighted average shares 364,652356,051
Basic earnings per share $0.86$0.42
Diluted earnings per share $0.86$0.42

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.