Quarterly report pursuant to Section 13 or 15(d)

Net Income Per Share (Details)

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Net Income Per Share (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Jul. 10, 2012
Jun. 30, 2012
Net Income Per Share        
Net income $ 135,367 $ 191,995    
Denominator:        
Weighted-average shares-basic, excluding unvested restricted stock units 166,531 166,684    
Effect of dilutive options and restricted stock units 3,293 3,151    
Weighted-average shares-diluted 169,824 169,835    
Basic net income per share $ 0.81 $ 1.15    
Diluted net income per share $ 0.80 $ 1.13    
Anti-dilutive securities excluded from the computation of diluted net income per share 1,717 6,635    
Payments of dividends $ 66,629 $ 58,460    
Common Stock Dividends Per Share Authorized     $ 0.40 $ 0.35