XML 59 R34.htm IDEA: XBRL DOCUMENT v3.8.0.1
REAL ESTATE HELD FOR INVESTMENT (Concentration of Credit Risk for Tenant Leases) (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2018
USD ($)
ft²
extension
$ / ft²
Mar. 31, 2017
USD ($)
Dec. 31, 2018
USD ($)
Jun. 30, 2018
ft²
Real Estate Properties [Line Items]        
Annualized Base Rent $ 56,873      
Rental income $ 30,238 $ 32,559    
Tenant Lease - Union Bank Plaza        
Real Estate Properties [Line Items]        
Square Feet | ft² 342,712      
% of Portfolio (Net Rentable Sq. Ft.) 9.10%      
Annualized Base Rent $ 14,587      
% of Portfolio Annualized Base Rent 12.20%      
Annualized Base Rent per Sq. Ft. | $ / ft² 42.56      
Square feet surrender | ft² 15,829      
Termination of lease $ 6,500      
Rental income $ 800      
Extension option | extension 2      
Tenant Lease - Union Bank Plaza | Maximum        
Real Estate Properties [Line Items]        
Extension period 10 years      
Tenant Lease - Union Bank Plaza | Minimum        
Real Estate Properties [Line Items]        
Rentable area required for extension option (less than) | ft² 200,000      
Tenant Lease - Union Bank Plaza | Other Liabilities        
Real Estate Properties [Line Items]        
Deferred revenue $ 5,700      
Tenant Lease - Union Bank Plaza | Scenario, Forecast        
Real Estate Properties [Line Items]        
Square feet surrender | ft²       31,320
Termination of lease     $ 4,900