Income Taxes (Schedule of Unrecognized Tax Benefits Rollforward) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at the beginning of the year	$ 3,052	$ 2,906	$ 4,533
Increases related to current year positions	90	108	68
Increases (decreases) related to prior year positions	78	38	(1,695)
Balance at the end of the year	$ 3,220	$ 3,052	$ 2,906