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Fair Value Measurements (Details 3) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Sep. 30, 2013
Prepaid Expenses and Other Current Assets [Member]
   
Derivatives, Fair Value [Line Items]    
Unrealized Gains on Interest Rate Swaps $ 196 $ 0
Accrued Expenses and Other Current Liabilities [Member]
   
Derivatives, Fair Value [Line Items]    
Unrealized Losses on Interest Rate Swaps $ (1,239) $ (1,909)