Derivative Financial Instruments (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2012
Derivative Financial Instruments (Additional Textual) [Abstract]
Foreign currency hedge arrangements	Sep. 30, 2012
Accrued unrealized foreign exchange losses	$ 0.4
Canadian Subsidiary [Member]
Derivative Financial Instruments (Textual) [Abstract]
Denominated intercompany accounts payable	29.7
Foreign Exchange Contract [Member]
Derivative Financial Instruments (Textual) [Abstract]
Foreign currency forward contract to hedge	$ 18.0