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Earnings Per Share
3 Months Ended
Mar. 31, 2012
Earnings Per Share

7.  Earnings Per Share

Basic earnings per share includes no dilution and is computed by dividing net income available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflect, in periods in which they have a dilutive effect, the effect of restricted stock-based awards and common shares issuable upon exercise of stock options and warrants. The difference between basic and diluted weighted-average common shares results from the assumption that all dilutive stock options outstanding were exercised and all convertible notes have been converted into common stock.

As of March 31, 2012, of the total potentially dilutive shares related to restricted stock-based awards, stock options and warrants, approximately 0.1 million were anti-dilutive, compared to 0.1 million as of March 31, 2011.

As of March 31, 2012, approximately 0.1 million of the performance related restricted stock-based awards issued in connection with the Company’s employment agreement with its chairman, chief executive officer and president were anti-dilutive.

Warrants issued in connection with the Company’s 2.50% Convertible Notes financing and 1.875% Convertible Notes financing were anti-dilutive and therefore not included in this calculation. Portions of the 2.50% Convertible Notes and 1.875% Convertible Notes that would be subject to conversion to common stock were anti-dilutive as of March 31, 2012 and therefore not included in this calculation.

A reconciliation of weighted average shares used in calculating basic and diluted earnings per share follows:

 

(000’s omitted)

   For the Three Months  Ended
March 31,
(unaudited)
 
                   2012                                     2011                 
Basic      72,302           72,768   
Effect of exercise of stock options      1,008           1,272   
Effect of contingent common stock issuance      144           144   
Effect of assumed vesting of restricted stock      1,151           1,186   
  

 

 

      

 

 

 
Diluted      74,605           75,370