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Derivative Financial Instruments - Pretax Effect of Derivative Instruments on Earnings and OCI (Details) - USD ($)
3 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]    
Net (losses) gains recognized in accumulated other comprehensive (loss) income (effective portion) $ (4,640,000) $ 3,332,000
Net losses recognized in earnings (ineffective portion) (356,000) (51,000)
Designated as Hedging Instrument [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net   0
Derivative Instruments Designated as Cash Flow Hedges [Member]    
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net 0  
Net (losses) gains recognized in earnings (effective portion) $ (4,968,000) $ 4,710,000