Leases (Details) (USD $)	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Capital Leases Of Lessee Abstract
Capital Leased Assets Gross	$ 1,300,000	$ 1,300,000
Capital Leases Accumulated Depreciation	900,000	800,000
Operating Leases Future Minimum Payments Due Current	17,718,000
Operating Leases Future Minimum Payments Due In Two Years	16,846,000
Operating Leases Future Minimum Payments Due In Three Years	16,519,000
Operating Leases Future Minimum Payments Due In Four Years	15,455,000
Operating Leases Future Minimum Payments Due In Five Years	14,921,000
Operating Leases Future Minimum Payments Due Thereafter	118,108,000
Total Operating Lease Payments	199,567,000
Capital Leases Future Minimum Payments Due Current	186,000
Capital Leases Future Minimum Payments Due In Two Years	186,000
Capital Leases Future Minimum Payments Due In Three Years	186,000
Capital Leases Future Minimum Payments Due In Four Years	186,000
Capital Leases Future Minimum Payments Due In Five Years	186,000
Capital Leases Future Minimum Payments Due Thereafter	264,000
Total Capital Minimum Lease Payments	1,194,000
Capital Lease, Interest Included In Lease Payments	406,000
Present Value Of Net Minimum Lease Payments	788,000
Lease and Rental Expense	19,100,000	16,000,000	13,600,000
Capital Leases Of Lessor Abstract
Capital Leases Future Minimum Payments Receivable Current	2,013,000	2,973,000
Capital Leases Future Minimum Payments Receivable Due Thereafter	0
Total Minimum Lease Receipts	2,013,000
Leases Abstract
Capital Leases Net Investment In Sales Type Leases Minimum Payments To Be Received	2,000,000	7,800,000
Capital Leases Income Statement Sales Type Lease Revenue	$ 500,000	$ 900,000	$ 1,200,000