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Termination of Purchase and Sale Agreement (Details) - USD ($)
1 Months Ended 3 Months Ended
Jun. 17, 2020
Jan. 31, 2021
Jan. 31, 2020
Jan. 14, 2020
Escrow deposit amount   $ 1,923,000 $ 2,876,000  
Amount of liquidated damages $ 15,000,000      
Expense incurred   0 $ 3,382,000  
Legal costs   $ 481,000    
Purchase and Sale Agreement [Member] | Six Apartment Properties [Member]        
Percentage of ownership interest       100.00%
Purchase and Sale Agreement [Member] | Six Apartment Properties [Member] | Letter of Credit [Member]        
Escrow deposit amount       $ 15,000,000