Investment Impairment (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jun. 30, 2011
Investments, Debt and Equity Securities [Abstract]
Impairment reserve in miscellaneous expense	$ 6.1

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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