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LOANS PAYABLE AND OTHER BORROWINGS - Schedule of Loans Payable and Other Borrowings (Details) - USD ($)
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Other borrowings, real estate note payable [Member]    
Line of Credit Facility [Line Items]    
Loans payable and other borrowings [1] $ 23,094,000 $ 22,876,000
Line of credit [Member] | Revolving credit facility [Member]    
Line of Credit Facility [Line Items]    
Loans payable and other borrowings 0 0
Current borrowing capacity $ 780,000,000.0  
Line of credit [Member] | Revolving credit facility [Member] | London Interbank Offered Rate (LIBOR) [Member]    
Line of Credit Facility [Line Items]    
Base rate 0.14%  
Basis spread on variable rate 1.375%  
Line of credit [Member] | Revolving credit facility [Member] | Prime Rate [Member]    
Line of Credit Facility [Line Items]    
Base rate 3.25%  
Basis spread on variable rate 0.375%  
Loans payable and other borrowings total [Member]    
Line of Credit Facility [Line Items]    
Loans payable and other borrowings $ 23,094,000 $ 22,876,000
[1] Reflects balance of non-recourse non-interest bearing notes payable in connection with land purchases.