Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

v2.4.0.6
Fair Value Measurements (Details) (Recurring [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Sep. 30, 2012
Assets [Abstract]    
Trading securities $ 16,715 $ 16,265
Total assets at fair value 16,715 16,265
Liabilities [Abstract]    
Derivatives 6,289 [1] 9,133 [1]
Total liabilities at fair value 6,289 9,133
Level 1 [Member]
   
Assets [Abstract]    
Trading securities 16,715 16,265
Total assets at fair value 16,715 16,265
Liabilities [Abstract]    
Derivatives 0 [1] 0 [1]
Total liabilities at fair value 0 0
Level 2 [Member]
   
Assets [Abstract]    
Trading securities 0 0
Total assets at fair value 0 0
Liabilities [Abstract]    
Derivatives 6,289 [1] 9,133 [1]
Total liabilities at fair value 6,289 9,133
Level 3 [Member]
   
Assets [Abstract]    
Trading securities 0 0
Total assets at fair value 0 0
Liabilities [Abstract]    
Derivatives 0 [1] 0 [1]
Total liabilities at fair value $ 0 $ 0
[1] Interest rate swaps are valued based on observable market swap rates.