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Note 2 - Earnings per Share (Tables)
9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Third Quarter

   

First Nine Months

 

(In thousands, except per share data)

 

2013

   

2012

   

2013

   

2012

 
                                 

Basic EPS:

                               

Net income

  $ 18,760     $ 18,742     $ 51,799     $ 48,839  
                                 

Weighted average number of common shares outstanding

    85,775       86,423       84,902       88,491  
                                 

Basic income per common share

  $ 0.22     $ 0.22     $ 0.61     $ 0.55  
                                 
                                 

Diluted EPS:

                               

Net income

  $ 18,760     $ 18,742     $ 51,799     $ 48,839  

Assumed conversions of Senior Notes

    1,374       1,396       3,921       3,944  

Adjusted net income

  $ 20,134     $ 20,138     $ 55,720     $ 52,783  
                                 

Weighted average number of common shares outstanding-basic

    85,775       86,423       84,902       88,491  

Add:   Dilutive effect of stock options and restricted stock awards

    1,503       695       1,718       756  

Dilutive effect of Senior Notes

    15,682       15,682       15,682       15,682  
                                 
                                 

Diluted weighted average number of common shares outstanding

    102,960       102,800       102,302       104,929  
                                 

Diluted income per common share

  $ 0.20     $ 0.20     $ 0.54     $ 0.50  
                                 

Stock options and restricted stock excluded from calculation of diluted earnings per share because anti-dilutive for the period

    591       3,377       565       2,503