Income Taxes (Schedule of Unrecognized Tax Benefits Rollforward) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at the beginning of the year	$ 2,906	$ 4,533	$ 3,460
Increases (decreases) related to current year positions	108	68	112
Increases (decreases) related to prior year positions	38	(1,695)	961
Balance at the end of the year	$ 3,052	$ 2,906	$ 4,533