BASIS OF PRESENTATION - Reserves For Doubtful Collection of Long-term Receivables (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012		Jun. 30, 2012
Allowance for Notes, Loans and Financing Receivable, Noncurrent [Roll Forward]
Adjustment to increase reserves for doubtful collection of long-term receivables	$ 326		$ 326
Allowance for Notes Receivable [Member]
Allowance for Notes, Loans and Financing Receivable, Noncurrent [Roll Forward]
Balance, beginning of period	20,787		20,279
Additions: Charges to bad debt expense	627	[1]	1,140	[1]
Deductions: Adjustments	(2)		(7)
Balance, end of period	21,412		21,412
Allowance for Notes Receivable [Member] | Affiliates [Member]
Allowance for Notes, Loans and Financing Receivable, Noncurrent [Roll Forward]
Balance, beginning of period	20,714		20,201
Additions: Charges to bad debt expense	627	[1]	1,140	[1]
Deductions: Adjustments	0		0
Balance, end of period	21,341		21,341
Allowance for Notes Receivable [Member] | Tenants [Member]
Allowance for Notes, Loans and Financing Receivable, Noncurrent [Roll Forward]
Balance, beginning of period	73		78
Additions: Charges to bad debt expense	0	[1]	0	[1]
Deductions: Adjustments	(2)		(7)
Balance, end of period	$ 71		$ 71

[1] Includes adjustment to increase reserves for doubtful collection of long-term receivables by $326,000, which related to prior periods.