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Derivative Financial Instruments - Pretax Effect of Derivative Instruments on Earnings and OCI (Details) (USD $)
3 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]    
Net losses recognized in other comprehensive income (loss) (effective portion)   $ 0
Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Net gains recognized in earnings (effective portion) (2,219,000) 0
Net losses recognized in other comprehensive income (loss) (effective portion) (3,125,000) 0
Net losses recognized in earnings (ineffective portion) $ (507,000) $ 0