Derivative Instruments and Hedging Activities (Details 1) (Cash Flow Hedging [Member], USD $) In Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Derivatives Accounted for as Designated Cash Flow Hedging Relationships
Gain (Loss) Recognized in OCI on Derivatives	$ 249	$ 11,871	$ 9,396	$ 55,043
Location of Gain (Loss) Reclassified from Accumulated OCI into Income
Gain (Loss) Reclassified from Accumulated OCI into Income	(401)	(1,974)	(1,254)	(44,203)
Forward Exchange Contract [Member]
Derivatives Accounted for as Designated Cash Flow Hedging Relationships
Gain (Loss) Recognized in OCI on Derivatives		11,561		54,093
Interest rate swap [Member]
Derivatives Accounted for as Designated Cash Flow Hedging Relationships
Gain (Loss) Recognized in OCI on Derivatives	249	310	9,396	928
Commodity Forward Contract [Member]
Derivatives Accounted for as Designated Cash Flow Hedging Relationships
Gain (Loss) Recognized in OCI on Derivatives				22
Revenues [Member]
Location of Gain (Loss) Reclassified from Accumulated OCI into Income
Gain (Loss) Reclassified from Accumulated OCI into Income		(1,474)		(42,672)
Interest Expense [Member]
Location of Gain (Loss) Reclassified from Accumulated OCI into Income
Gain (Loss) Reclassified from Accumulated OCI into Income	(401)	(500)	(1,254)	(1,496)
Cost of Sales [Member]
Location of Gain (Loss) Reclassified from Accumulated OCI into Income
Gain (Loss) Reclassified from Accumulated OCI into Income				$ (35)