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Fair Value Measurements (Tables)
 6 Months Ended
Mar. 31, 2014
Fair Value Measurements [Abstract]  
Fair value of assets and liabilities measured on a recurring basis
The fair values of the Company’s assets and liabilities measured on a recurring basis are categorized as follows:

 
 
March 31, 2014
  
September 30, 2013
 
 
 
Level 1
  
Level 2
  
Level 3
  
Total
  
Level 1
  
Level 2
  
Level 3
  
Total
 
Assets:
 
  
  
  
  
  
  
  
 
Derivatives (1)
 
$
-
  
$
3,850
   
-
  
$
3,850
  
$
-
  
$
3,736
   
-
  
$
3,736
 
Trading securities
 
$
18,879
   
-
   
-
  
$
18,879
  
$
17,929
   
-
   
-
  
$
17,929
 
Total assets at fair value
 
$
18,879
  
$
3,850
   
-
  
$
22,729
  
$
17,929
  
$
3,736
   
-
  
$
21,665
 
 
                                
Liabilities:
                                
Derivatives (1)
  
-
  
$
3,403
   
-
  
$
3,403
   
-
  
$
4,644
   
-
  
$
4,644
 
Total liabilities at fair value
  
-
  
$
3,403
   
-
  
$
3,403
   
-
  
$
4,644
   
-
  
$
4,644
 

(1)Interest rate swaps are valued based on observable market swap rates.