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Fair Value Of Financial Instruments (Tables)
3 Months Ended
Dec. 31, 2011
Fair Value Of Financial Instruments [Abstract]  
Estimated Fair Value Of Financial Instruments
      Fair Value Measurements      Liabilities at
Fair Value
 

Liabilities

   Level 1      Level 2      Level 3     

Interest Rate Swaps

   $ —         $ 1,843       $ —         $ 1,843