VARIABLE INTEREST ENTITIES INVESTMENTS IN REAL ESTATE (Details) RSO (RSO [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended		12 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2014 Property	Sep. 30, 2014 Property	Sep. 30, 2013	Dec. 31, 2013 Property	Sep. 30, 2014 Held-for-sale Property One [Member]	Sep. 30, 2014 Office property [Member]	Sep. 30, 2013 Office property [Member]	Sep. 30, 2014 Office property [Member]	Sep. 30, 2013 Office property [Member]	Sep. 30, 2014 Multi-family property [Member]	Sep. 30, 2013 Multi-family property [Member]	Sep. 30, 2014 Multi-family property [Member]	Sep. 30, 2013 Multi-family property [Member]
Real Estate Line Items [Line Items]
Number of properties acquired	0	0		0
Number of properties available-for-sale	2	2
Property held-for-sale	$ 29,581	$ 29,581		$ 25,346	$ 9,600					$ 19,800		$ 19,800
Gain (Loss) from property available-for-sale						48	(72)	23	(225)	119	(93)	(4)	13
Number of properties sold				1
Gain on sale of properties	$ 3,000	$ 2,973	$ 16,607	$ 16,600