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Equity Method Investment (Details)
2 Months Ended 3 Months Ended
Mar. 14, 2019
USD ($)
Mar. 13, 2019
USD ($)
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Feb. 25, 2016
story
Schedule of Equity Method Investments [Line Items]          
Investment in equity method investment during period     $ 535,000 $ 1,410,000  
Equity in income of unconsolidated real estate entities     273,000 0  
22-Story Mixed Use Tower | City Center          
Schedule of Equity Method Investments [Line Items]          
Interests in equity method investments         37.00%
Number stories in the mixed use tower (story) | story         22
Investment in equity method investment during period     $ 500,000    
Equity in income of unconsolidated real estate entities   $ 300,000   0  
Dividends from equity investment       $ 0  
Office And Retail Portions | City Center          
Schedule of Equity Method Investments [Line Items]          
Interests in equity method investments 37.00%        
One City Center          
Schedule of Equity Method Investments [Line Items]          
Cash payment $ 22,900,000