Quarterly report pursuant to Section 13 or 15(d)

LOANS PAYABLE AND OTHER BORROWINGS - Schedule of Loans Payable and Other Borrowings (Details)

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LOANS PAYABLE AND OTHER BORROWINGS - Schedule of Loans Payable and Other Borrowings (Details) - USD ($)
 6 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Revolving credit facility [Member] | London Interbank Offered Rate (LIBOR) [Member]    
Line of Credit Facility [Line Items]    
Description of variable rate basis LIBOR  
Base rate 2.09%  
Basis spread on variable rate 1.75%  
Revolving credit facility [Member] | Prime Rate [Member]    
Line of Credit Facility [Line Items]    
Description of variable rate basis Prime  
Base rate 5.00%  
Basis spread on variable rate 0.75%  
Other borrowings, real estate notes payable [Member]    
Line of Credit Facility [Line Items]    
Loans payable and other borrowings [1] $ 16,552,000 $ 17,354,000
Unsecured revolving credit facility [Member] | Revolving credit facility [Member]    
Line of Credit Facility [Line Items]    
Loans payable and other borrowings 0 0
Current borrowing capacity 780,000,000  
Loans payable and other borrowings total [Member]    
Line of Credit Facility [Line Items]    
Loans payable and other borrowings $ 16,552,000 $ 17,354,000
Minimum [Member] | Other borrowings, real estate notes payable [Member]    
Line of Credit Facility [Line Items]    
Stated interest rate 0.00%  
Maximum [Member] | Other borrowings, real estate notes payable [Member]    
Line of Credit Facility [Line Items]    
Stated interest rate 8.00%  
[1] Reflects balance of non-recourse notes payable in connection with land purchases, with interest rates ranging from 0% to 8%.