Retirement Plan (Schedule of Amounts Recognized on the Consolidated Balance Sheet) (Details) (Pension Plans, Defined Benefit, USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Other long-term liabilities	$ 3,790	$ 3,537
Accumulated other comprehensive income (net of tax of $322 in 2013 and $204 in 2012)	2,044	2,126
Amount recognized	5,834	5,663
Accumulated other comprehensive income, tax	$ 322	$ 204