REAL ESTATE PROPERTIES (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended					12 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Multi-family residential	Sep. 30, 2014 Commercial/mixed use properties Primary Beneficiary Newark Joint Venture	Sep. 30, 2014 Land	Sep. 30, 2013 Land	Sep. 30, 2014 Shopping centers/retail	Sep. 30, 2014 Co-op/Condo Apts
Activity in real estate properties
Balance at the beginning of the period	$ 402,896	$ 299,792	$ 92,354	$ 7,972	$ 7,972	$ 2,645	$ 133
Additions	205,220	205,220
Capitalized Costs and Improvements	43,130	20,684	22,297			137	12
Depreciation, Amortization and Other Reductions	(15,634)	(13,830)	(1,630)			(104)	(70)
Balance at the end of the period	$ 635,612	$ 511,866	$ 113,021	$ 7,972	$ 7,972	$ 2,678	$ 75