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Investment in Unconsolidated Joint Ventures - DC Charlotte Plaza LLLP (Details)
ft² in Thousands, $ in Thousands
12 Months Ended
Sep. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
ft²
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Schedule of Equity Method Investments [Line Items]        
Combined gross sales price   $ 555,333 $ 435,833 $ 62,667
Gain on sales of investments in unconsolidated joint ventures   $ 13,083 $ 45,767 $ 0
DC Charlotte Plaza LLLP (sold September 2021)        
Schedule of Equity Method Investments [Line Items]        
Ownership interest percentage   50.00%    
Area of property | ft²   281    
Combined gross sales price $ 60,800      
Gain on sales of investments in unconsolidated joint ventures $ 13,100      
DC Charlotte Plaza LLLP (sold September 2021) | DFA        
Schedule of Equity Method Investments [Line Items]        
Ownership percentage of partner in joint venture   50.00%