Income Taxes (Unrecognized Tax Benefits) (Details) (USD $)	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]
Unrecognized tax benefits, beginning balance	$ 2,720,000	$ 2,061,000	$ 2,265,000
Increases related to prior year income tax positions	162,000	631,000	32,000
Increases related to current year income tax positions	733,000	441,000	392,000
Decreases related to prior year income tax positions	0	(94,000)	0
Decreases related to expiration of statute of limitations	(283,000)	(319,000)	(628,000)
Unrecognized tax benefits, ending balance	3,332,000	2,720,000	2,061,000
Unrecognized tax benefits that would impact effective tax rate	3,400,000
Expected decrease in unrecognized tax benefits, minimum	200,000
Expected decrease in unrecognized tax benefits, minimum	$ 300,000