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Derivatives and Hedging Activities (Schedule of Fair Value Derivative Instruments) (Details) (Derivatives Not Designated as Hedging Instruments [Member], Interest Rate Contracts [Member], USD $)
In Thousands
Jun. 30, 2011
Jun. 30, 2010
Other Assets [Member]
   
Fair value of asset derivative instruments $ 10,476 $ 12,002
Other Liabilities [Member]
   
Fair value of liability derivative instruments $ 10,476 $ 12,002