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REAL ESTATE HELD FOR INVESTMENT (Operating Leases) (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Operating Leased Assets [Line Items]      
Deferred rent recognized $ 4.1 $ 4.7 $ 2.4
Deferred rent receivables 13.6 8.4  
Incentive to lessee 3.1 1.3  
Other liabilities      
Operating Leased Assets [Line Items]      
Security deposit liability $ 4.3 $ 3.7  
Maximum      
Operating Leased Assets [Line Items]      
Operating lease, term 12 years 2 months 12 days    
Weighted Average      
Operating Leased Assets [Line Items]      
Operating lease, term 4 years 3 months 18 days