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Earnings Per Share
6 Months Ended
Jun. 30, 2011
Earnings Per Share

Note 3. Earnings Per Share

A reconciliation between basic and diluted earnings per share is as follows (in thousands, except per share data):

 

     Quarter Ended      Six Months Ended  
     June 30,      June 30,  
     2011      2010      2011      2010  

Net income for basic and diluted earnings per share

   $ 93,491       $ 53,731       $ 171,901       $ 133,574   

Weighted-average common shares outstanding

     217,028         215,043         216,771         214,680   

Dilutive effect of stock options and restricted stock awards

     2,342         2,518         2,745         2,624   
                                   

Diluted weighted-average shares outstanding

     219,370         217,561         219,516         217,304   
                                   

Basic earnings per share

   $ 0.43       $ 0.25       $ 0.79       $ 0.62   

Diluted earnings per share

   $ 0.43       $ 0.25       $ 0.78       $ 0.61   

Diluted earnings per share for the quarter and six months ended June 30, 2011 does not include options to purchase 2.8 million and 1.8 million shares respectively, because the effect of including them would have been antidilutive. Diluted earnings per share for the quarter and six months ended June 30, 2010 does not include options to purchase 2.8 million shares outstanding for both periods because the effect of including them would have been antidilutive.