NOTES RECEIVABLE, PREFERRED EQUITY, AND OTHER REAL ESTATE RELATED INVESTMENTS Schedule of Allowance for Credit Losses on Notes Receivable (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period	$ 3,681	$ 3,681
Additional reserves	0	0
Recoveries	(2,724)	0
Charge-offs and reclassifications	(957)	0
Balance at end of period	$ 0	$ 3,681