Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Commitments And Contingencies Details [Abstract]
Rent Expense	$ 5,382	$ 4,259	$ 4,051
Operating Lease Obligations [Abstract]
Future Minimum Payments (2012)	4,663
Future Minimum Payments (2013)	4,164
Future Minimum Payments (2014)	3,869
Future Minimum Payments (2015)	3,768
Future Minimum Payments (2016)	3,669
Future Minimum Payments Thereafter (After 2016)	15,112
Future Minimum Payments, Total	35,245
Capital Lease Obligations [Abstract]
Future Minimum Payments Due (2012)	337
Future Minimum Payments Due (2013)	88
Future Minimum Payments Due (2014)	16
Future Minimum Payments Due (2015)	0
Future Minimum Payments Due (2016)	0
Future Minimum Payments Due Thereafter (After 2016)	0
Future Minimum Payments Due, Total	$ 441

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The total of contractually required rental payments on leases meeting the criteria for capitalization.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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Contractually required rental payments on leases meeting the criteria for capitalization, due within one year of the balance sheet date.

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Rental expense incurred for leased assets including furniture and equipment which has not been recognized in costs and expenses applicable to sales and revenues; for example, cost of goods sold or other operating costs and expenses.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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