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Auction Rate Securities - ARS Investments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]
Investment securities accretion	$ 1.6	$ 1.3

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- Definition

Accretion on investment securities.

+ References

No definition available.

+ Details

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Period Type:	instant

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- Details

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