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DEBT - Summary of Notes Payable (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]    
Secured financing $ 0 $ 694
Notes payable - due to affiliates, unsecured, net of $27 thousand discount and unamortized deferred financing charges as of December 31, 2019 5,500 5,706
Unsecured financing charges 5 595
Total notes payable, net $ 5,505 6,995
Notes Payable To Affiliates    
Debt Instrument [Line Items]    
Discount and deferred financing charges, net of amortization   $ 27