Debt (Details) (USD $) In Thousands	Sep. 30, 2011	Sep. 30, 2010
Summary of short term debt
Current portion of long-term debt	$ 22	$ 31
Short-term debt	234,932	202,758
Domestic Debt [Member]
Summary of short term debt
Short-term Borrowings	200,000	200,000
Foreign Debt [Member]
Summary of short term debt
Short-term Borrowings	$ 34,910	$ 2,727