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Earnings Per Share (Tables)
9 Months Ended
Jun. 30, 2011
Earnings Per Share  
Reconciliation of Net Earnings to Net Earnings Per Share Basic and Diluted
                                 
    Three-Months Ending     Nine-Months Ending  
    June 30,     June 30,  
    2011     2010     2011     2010  
Numerator:
                               
Net earnings attributable to Woodward
  $ 36,056     $ 31,745     $ 90,545     $ 78,169  
 
                       
Denominator:
                               
Basic shares outstanding
    68,793       68,489       68,785       68,428  
Dilutive effect of employee stock options
    1,373       1,498       1,370       1,443  
 
                       
Diluted shares outstanding
    70,166       69,987       70,155       69,871  
 
                       
Income per common share:
                               
Basic earnings per share attribuable to Woodward
  $ 0.52     $ 0.46     $ 1.32     $ 1.14  
 
                       
Diluted earnings per share attributable to Woodward
  $ 0.51     $ 0.45     $ 1.29     $ 1.12  
 
                       
Anti-dilutive Stock Options Excluded from Computation of Earnings Per Share
                                 
    Three-Months Ending     Nine-Months Ending  
    June 30,     June 30,  
    2011     2010     2011     2010  
Options
    678       430       679       447  
 
                       
Weighted-average option price
  $ 32.06     $ 32.58     $ 32.03     $ 32.49  
Schedule of Treasury Stock Shares Held for Deferred Compensation Included in Basic and Diluted Shares Outstanding
                                 
    Three-Months Ending     Nine-Months Ending  
    June 30,     June 30,  
    2011     2010     2011     2010  
Weighted average treasury stock shares held for deferred compensation obligation
    324       361       340       375