Derivative Instruments and Hedging Activities (Impact of Derivative Instruments on Earnings) (Details) - Interest Expense [Member] - Derivatives in Cash Flow Hedging Relationships [Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Amount of (Income) Expense Recognized in Earnings on Derivative		$ 21	$ 99	$ 99
Amount of (Gain) Loss Recognized in Accumulated OCI on Derivative	$ 507	0	0	0
Amount of (Gain) Loss Reclassified from Accumulated OCI into Earnings		$ 21	$ 99	$ 99