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Note 14 - Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three Months Ended

June 30,
   

Six Months Ended

June 30,

 
   

2021

   

2020

   

2021

   

2020

 

Computation of Basic and Diluted Earnings Per Share:

                               

Net income available to the Company's common shareholders

  $ 110,343     $ 741,539     $ 241,931     $ 825,285  

Earnings attributable to participating securities

    (672 )     (5,253 )     (1,475 )     (5,687 )

Net income available to the Company’s common shareholders for basic earnings per share

    109,671       736,286       240,456       819,598  

Distributions on convertible units

    9       33       18       81  

Net income available to the Company’s common shareholders for diluted earnings per share

  $ 109,680     $ 736,319     $ 240,474     $ 819,679  
                                 

Weighted average common shares outstanding – basic

    431,011       429,967       430,769       429,851  

Effect of dilutive securities (1):

                               

Equity awards

    1,356       970       1,528       1,469  

Assumed conversion of convertible units

    122       233       133       207  

Weighted average common shares outstanding – diluted

    432,489       431,170       432,430       431,527  
                                 

Net income available to the Company's common shareholders:

                               

Basic earnings per share

  $ 0.25     $ 1.71     $ 0.56     $ 1.91  

Diluted earnings per share

  $ 0.25     $ 1.71     $ 0.56     $ 1.90