Quarterly report pursuant to Section 13 or 15(d)

Net Income Per Share (Details)

v2.3.0.15
Net Income Per Share (Details) (USD $)
In Thousands, except Per Share data
 3 Months Ended 12 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Jun. 30, 2011
Net Income Per Share      
Net income $ 191,995 $ 154,196  
Denominator:      
Weighted average shares-basic, excluding unvested restricted stock units 166,684 167,187  
Effect of dilutive options and restricted stock units 3,151 2,652  
Weighted-average shares-diluted 169,835 169,839  
Basic net income per share $ 1.15 $ 0.92  
Diluted net income per share $ 1.13 $ 0.91  
Anti-dilutive securities excluded from the computation of diluted net income per share 6,635 10,340  
Payments of dividends $ 58,460 $ 41,785  
Common stock quarterly dividends per share authorized $ 0.35   $ 0.25