Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

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Subsequent Events (Details) (USD $)
 1 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2012
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Subsequent Events          
Cash dividend declared (in dollars per share) $ 0.09 $ 0.09 $ 0.165 $ 0.27 $ 0.30