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Derivative Financial Instruments (Details) (Foreign exchange contracts [Member], USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Other Current Assets [Member]
Fair value of Derivative Instruments
Foreign currency forward contracts	$ 0	$ 366
Other Current Liabilities [Member]
Fair value of Derivative Instruments
Foreign currency foreign contracts	$ 91	$ 0

Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

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