Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details)

 v2.3.0.11
Fair Value Measurements (Details) (Recurring [Member], USD $)
In Thousands
Jun. 30, 2011
Sep. 30, 2010
Assets:    
Short-term investments $ 1,392 $ 1,395
Trading securities 14,326 11,770
Total assets at fair value 15,718 13,165
Liabilities:    
Derivatives 4,577 4,445
Total liabilities at fair value 4,577 4,445
Level 1 [Member]
   
Assets:    
Short-term investments 1,392 1,395
Trading securities 14,326 11,770
Total assets at fair value 15,718 13,165
Liabilities:    
Derivatives 0 0
Total liabilities at fair value 0 0
Level 2 [Member]
   
Assets:    
Short-term investments 0 0
Trading securities 0 0
Total assets at fair value 0 0
Liabilities:    
Derivatives 4,577 4,445
Total liabilities at fair value 4,577 4,445
Level 3 [Member]
   
Assets:    
Short-term investments 0 0
Trading securities 0 0
Total assets at fair value 0 0
Liabilities:    
Derivatives 0 0
Total liabilities at fair value $ 0 $ 0