BASIS OF PRESENTATION - Long-Term Receivables (Details) (USD $)	3 Months Ended		9 Months Ended
	Jun. 30, 2014		Jun. 30, 2014		Mar. 31, 2014	Sep. 30, 2013
Notes, Loans and Financing Receivable, Gross, Noncurrent [Roll Forward]
Balance, beginning of period	$ 64,671,000	[1]	$ 61,312,000	[1]
Additions: Issuance of affiliate advances and tenant and other loans, including interest receivable	2,191,000		6,411,000
Deductions: Payments received	(105,000)		(966,000)
Balance, end of period	66,757,000	[1]	66,757,000	[1]
Interest receivable	33,600,000		33,600,000		32,000,000	29,100,000
Affiliates
Notes, Loans and Financing Receivable, Gross, Noncurrent [Roll Forward]
Balance, beginning of period	62,002,000	[1]	57,782,000	[1]
Additions: Issuance of affiliate advances and tenant and other loans, including interest receivable	2,088,000		6,308,000
Deductions: Payments received	0		0
Balance, end of period	64,090,000	[1]	64,090,000	[1]
Tenants and Others
Notes, Loans and Financing Receivable, Gross, Noncurrent [Roll Forward]
Balance, beginning of period	2,669,000	[1]	3,530,000	[1]
Additions: Issuance of affiliate advances and tenant and other loans, including interest receivable	103,000		103,000
Deductions: Payments received	(105,000)		(966,000)
Balance, end of period	$ 2,667,000	[1]	$ 2,667,000	[1]

[1] Includes interest receivable of $33.6 million, $32.0 million and $29.1 million as of June 30, 2014, March 31, 2014 and September 30, 2013, respectively. The WTG receivables no longer accrue interest pursuant to a release and reimbursement agreement entered into in September 2010.