Marketable Securities (Details Textuals) (USD $) In Millions	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010
Marketable Securities (Textuals) [Abstract]
Marketable securities, available-for-sale	$ 297.6	$ 297.7
Marketable securities maturing in the next twelve months	191.6
Realized gain on sale of marketable securities	0.1	0
Marketable securities maturing in one to two years	106.0
Proceeds from the sale or maturity of marketable securities	$ 292.5	$ 27.7

For an unclassified balance sheet, total of debt securities categorized neither as held-to-maturity nor trading.

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+ Details

- Definition

The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

+ References

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