Summary Of Significant Accounting Policies (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended					1 Months Ended			12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2012 Insurance-related Assessments [Member]	Sep. 30, 2011 Insurance-related Assessments [Member]	Feb. 28, 2010 Construction Project [Member]	Mar. 31, 2009 Construction Project [Member]	Mar. 31, 2010 Construction Project [Member]	Sep. 30, 2012 Commercial Real Estate [Member]	Sep. 30, 2011 Commercial Real Estate [Member]	Sep. 30, 2011 Internally Developed Software [Member]	Sep. 30, 2011 Enertech Investment [Member]	Sep. 30, 2011 Goodwill [Member]
Summary Of Significant Accounting Policies [Abstract]
Expense of debt issuance costs	$ 568	$ 338	$ 315
Unamortized Debt Issuance Expense	1,139
Advertising Expense	420	512	1,547
Letters of Credit Outstanding, Amount	6,218
Summary Of Significant Accounting Policies [Line Items]
Impairment of Real Estate									688	143
Impairment of Long-Lived Assets to be Disposed of											3,551
Other Asset Impairment Charges												968
Goodwill, Impairment Loss													142
Increase (Decrease) in Long-term Receivables, Current							3,992
Allowance for Doubtful Accounts Receivable, Noncurrent	0	59					278	3,714
Litigation Settlement, Gross						2,850
Loss Contingency, Undiscounted Amount of Insurance-related Assessment Liability				6,864	8,353
LossContingencyAccrualInsuranceRelatedAssessmentDiscountRate				0.60%	1.00%
Loss Contingency, Discounted Amount of Insurance-related Assessment Liability				$ 5,228	$ 7,040