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Net Income Per Share
9 Months Ended
Sep. 30, 2011
Net Income Per Share [Abstract] 
NET INCOME PER SHARE
10. NET INCOME PER SHARE
     The following table sets forth the computation of basic and diluted earnings per share:
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2011     2010     2011     2010  
    (In thousands, except per share amounts)  
Income from continuing operations
  $ 6,449     $ 22,243     $ 10,230     $ 33,415  
Income from discontinued operations
    11       12       35       39  
 
                       
Net income available to common shareholders
  $ 6,460     $ 22,255     $ 10,265     $ 33,454  
 
                       
 
                               
Weighted average shares outstanding, basic
    30,570       29,815       30,402       29,702  
Dilutive effect of stock options and other shares
    828       808       821       889  
 
                       
Weighted average shares outstanding, dilutive
    31,398       30,623       31,223       30,591  
 
                       
 
                               
Basic earnings per share:
                               
From continuing operations
  $ 0.21     $ 0.75     $ 0.34     $ 1.13  
From discontinued operations
    0.00       0.00       0.00       0.00  
 
                       
Net income per share, basic
  $ 0.21     $ 0.75     $ 0.34     $ 1.13  
 
                       
Diluted earnings per share:
                               
From continuing operations
  $ 0.21     $ 0.73     $ 0.33     $ 1.09  
From discontinued operations
    0.00       0.00       0.00       0.00  
 
                       
Net income per share, basic
  $ 0.21     $ 0.73     $ 0.33     $ 1.09