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Real Estate Loan (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Real estate loan $ 4,000 $ 4,150
RBHTRB Newark Holdings LLC | Disposed of by Sale    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]    
Real estate loan $ 4,000  
Stated rate 11.00%