Income Taxes (Unrecognized Tax Benefits) (Details) (USD $)	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]
Unrecognized tax benefits, beginning balance	$ 3,332,000	$ 2,720,000	$ 2,061,000
Increases related to prior year income tax positions	181,000	162,000	631,000
Increases related to current year income tax positions	148,000	733,000	441,000
Decreases related to prior year income tax positions	(1,105,000)	0	(94,000)
Decreases related to settlements	(95,000)	0	0
Decreases related to expiration of statute of limitations	(160,000)	(283,000)	(319,000)
Unrecognized tax benefits, ending balance	2,301,000	3,332,000	2,720,000
Unrecognized tax benefits that would impact effective tax rate	2,300,000
Expected change in unrecognized tax benefits, minimum	$ 600,000