Investment in Unconsolidated Joint Ventures (Additional Information) (Details) $ in Thousands, ft² in Millions	1 Months Ended			3 Months Ended
	Apr. 30, 2020	Mar. 31, 2020 USD ($) ft²	Feb. 29, 2020 USD ($) a	Mar. 31, 2020 USD ($) ft²	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Schedule of Equity Method Investments [Line Items]
Gross purchase price				$ 433,875	$ 57,676
Gain on sale of interest				46,230	$ 0
Elimination of the remaining negative basis in the joint venture		$ (110,208)		$ (110,208)		$ (114,158)
Gateway
Schedule of Equity Method Investments [Line Items]
Area of property | ft²		1.1		1.1
Gross purchase price		$ 52,200
Internal rate of return		17.00%
Gain on sale of interest		$ 44,900
Elimination of the remaining negative basis in the joint venture		0		$ 0		(6,718)
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		0	$ 520	0		521
Carolina Square Holdings LP
Schedule of Equity Method Investments [Line Items]
Elimination of the remaining negative basis in the joint venture		$ (13,816)		$ (13,816)		$ (14,414)
Carolina Square Holdings LP | LIBOR
Schedule of Equity Method Investments [Line Items]
Basis spread on variable rate (percent)				1.90%
Carolina Square Holdings LP | LIBOR | Subsequent Event
Schedule of Equity Method Investments [Line Items]
Basis spread on variable rate (percent)	1.25%