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DIVIDENDS: (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
DIVIDENDS:        
Cash dividends paid on common stock and convertible preferred stock issuances $ 0.2 $ 0.2 $ 0.5 $ 0.6