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Investment in Unconsolidated Joint Ventures - Narrative (Details) $ in Thousands, ft² in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) ft² | Feb. 29, 2020 USD ($) a | Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) ft² | Dec. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Notes payable | $ 2,214,692 |  |  | $ 2,214,692 |  | $ 2,162,719
Repayments of notes payable |  |  |  | 4,030 | $ 26,849 |
Gain on sale of interest |  |  |  | $ 39 | $ 46,230 |
Carolina Square Holdings LP | NR 123 Franklin LLC |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage of partner in joint venture | 50.00% |  |  | 50.00% |  |
Carolina Square Holdings LP | Mortgages |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Notes payable | $ 135,700 |  |  | $ 135,700 |  |
Carolina Square Holdings LP | Mortgages | LIBOR |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Basis spread on variable rate | 1.80% |  |  |  |  |
Carolina Square Holdings LP | Construction Loan |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Repayments of notes payable | $ 77,500 |  |  |  |  |
Pro-rata distribution | $ 26,000 |  |  |  |  |
Charlotte Gateway Village, LLC |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage of partner in joint venture |  | 50.00% |  |  | 50.00% |
Square footage of real estate property (square feet) | ft² |  | 1.1 |  |  | 1.1 |
Gross purchase price |  | $ 52,200 |  |  |  |
Internal rate of return |  | 17.00% |  |  |  |
Gain on sale of interest |  | $ 44,600 |  |  |  |
Estimated state income tax |  | $ 188 |  |  |  |
Wildwood Associates |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Gross purchase price |  |  | $ 900 |  |  |
Gain on sale of interest |  |  | $ 1,300 |  |  |
Area of land | a |  |  | 6.3 |  |  |
Elimination of the remaining negative basis in the joint venture |  |  | $ 520 |  |  |

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