CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS (Narrative) (Details)			0 Months Ended		1 Months Ended	6 Months Ended	3 Months Ended		6 Months Ended				6 Months Ended	0 Months Ended	1 Months Ended
	Jun. 30, 2014 USD ($)	Dec. 31, 2013 USD ($)	May 12, 2014 CVC Credit Partners Group Limited [Member]	May 02, 2014 CVC Credit Partners Group Limited [Member] EUR (€)	Jun. 30, 2014 RRE Opportunity REIT II [Member] USD ($)	Jun. 30, 2014 RRE Opportunity REIT II [Member] USD ($)	Jun. 30, 2014 Affiliated Real Estate Limited Partnership [Member] USD ($)	Jun. 30, 2013 Affiliated Real Estate Limited Partnership [Member] USD ($)	Jun. 30, 2014 Affiliated Real Estate Limited Partnership [Member] USD ($)	Jun. 30, 2013 Affiliated Real Estate Limited Partnership [Member] USD ($)	Dec. 31, 2013 Affiliated Real Estate Limited Partnership [Member] USD ($)	Dec. 31, 2010 Affiliated Real Estate Limited Partnership [Member] USD ($)	Jun. 30, 2014 Employees [Member] USD ($)	Feb. 06, 2014 IPO [Member] RRE Opportunity REIT II [Member] USD ($)	Jul. 31, 2014 Subsequent Event [Member] USD ($)
Related Party Transaction [Line Items]
Initial public offering, amount of offering														$ 1,000,000,000.0
Initial public offering, maximum price per share (in dollars per share)														$ 10.00
Due from related parties	32,586,000	30,923,000			3,000,000	3,000,000
Increase in related party loan receivable					1,300,000
Related party loan receivable, description of variable rate basis			EURIBOR		LIBOR								3-month LIBOR
Related party loan receivable, basis spread on variable rate			7.00%			3.00%							3.00%
Term of related party loan						6 months
Related party loan receivable, maximum borrowing capacity				1,500,000.0
Maximum revolving note, related party							3,000,000		3,000,000			2,000,000
Interest rate description										bearing interest at the prime rate
Notes receivable, related party							2,300,000		2,300,000		2,300,000
Other revenues from transactions with related party							19,000	18,000	37,000	36,000
Due from employee													300,000
Purchase of portfolio of securities															$ 23,500,000