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INVESTMENTS IN UNCONSOLIDATED ENTITIES AND LOAN MANAGER (Narrative) (Details) - USD ($)
$ in Thousands
9 Months Ended
Jul. 02, 2015
Jun. 30, 2015
Apr. 17, 2012
Sep. 30, 2015
Oct. 31, 2015
Oct. 01, 2015
Schedule of Equity Method Investments [Line Items]            
Preferred equity interest retained as a percentage of incentive management fees       75.00%    
RRE Opportunity REIT I [Member]            
Schedule of Equity Method Investments [Line Items]            
Cost method investment       $ 2,500    
RRE Opportunity REIT II [Member]            
Schedule of Equity Method Investments [Line Items]            
Cost method investment       1,300    
Pearlmark Real Estate Partners [Member]            
Schedule of Equity Method Investments [Line Items]            
Cost method investment       4,000    
CVC Credit Partners [Member]            
Schedule of Equity Method Investments [Line Items]            
Cost method investment       $ 6,800    
Percentage Interest In Limited Partnership, After Option       24.00%    
Equity Method Investment, Other than Temporary Impairment   $ 4,300        
Innovation Office REIT [Member]            
Schedule of Equity Method Investments [Line Items]            
Cost method investment       $ 200    
CVC Credit Partners, L.P. [Member]            
Schedule of Equity Method Investments [Line Items]            
Irrevocable Option to Buy Interests in Joint Venture, Percentage       9.00%    
Limited Partner [Member] | CVC Credit Partners, L.P. [Member] | Parent Company [Member]            
Schedule of Equity Method Investments [Line Items]            
Percentage interest in limited partnership formed 24.00%   33.00%      
Irrevocable Option to Buy Interests in Joint Venture, Percentage 9.00%          
Subsequent Event [Member] | Pearlmark Real Estate Partners [Member]            
Schedule of Equity Method Investments [Line Items]            
Cost method investment         $ 1,000 $ 5,000