Real Estate Investments and Equity Method Investments - Other Real Estate Transactions (Details) - USD ($)																				3 Months Ended		12 Months Ended
	Sep. 20, 2023	Apr. 11, 2023	Dec. 31, 2022	Sep. 23, 2022	Jul. 26, 2022	Jul. 22, 2022	Jun. 29, 2022	Apr. 25, 2022	Apr. 01, 2022	Jan. 14, 2022	Dec. 15, 2021	Nov. 16, 2021	Oct. 28, 2021	Aug. 25, 2021	Jun. 28, 2021	Mar. 18, 2021	Mar. 16, 2021	Jan. 14, 2021	Jan. 04, 2021	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Oct. 31, 2022	Apr. 11, 2022
Real Estate [Line Items]
Debt repayments																						$ 180,869,000	$ 723,739,000	$ 187,758,000
Payments to acquire interest in joint venture																						$ 70,048,000	62,872,000	11,607,000
The Residences At Annapolis Junction
Real Estate [Line Items]
Interests in equity method investments																										95.00%
Ten Tryon Project
Real Estate [Line Items]
Interest acquired										20.00%
Acquisition, cash consideration										$ 3,900,000
The Residences At Annapolis Junction
Real Estate [Line Items]
Interest acquired																										16.00%
The Everly
Real Estate [Line Items]
Interest acquired																									5.00%
Earn-out payments																							4,200,000
Payments to acquire interest in joint venture																							$ 800,000
Market at Mill Creek
Real Estate [Line Items]
Interest acquired			30.00%																				30.00%
Total consideration			$ 1,500,000
Market at Mill Creek | Discontinued Operations, Disposed of by Sale
Real Estate [Line Items]
Gain (loss) on sales of investment real estate		$ 500,000
Brooks Crossing Retail Outparcel | Discontinued Operations, Disposed of by Sale
Real Estate [Line Items]
Gain (loss) on sales of investment real estate	$ 200,000
Hoffler Place
Real Estate [Line Items]
Gain (loss) on sales of investment real estate									$ (800,000)
Dispositions of real estate investments, net of selling costs									$ 43,100,000
Summit Place
Real Estate [Line Items]
Gain (loss) on sales of investment real estate								$ (500,000)
Acquisition, cash consideration															$ 500,000
Dispositions of real estate investments, net of selling costs								$ 37,800,000
Hoffler Place and Summit Place
Real Estate [Line Items]
Impairment of real estate																				$ 18,300,000				18,300,000
The Residences At Annapolis Junction
Real Estate [Line Items]
Gain (loss) on sales of investment real estate						$ 31,500,000
Dispositions of real estate investments, net of selling costs						150,000,000
The Residences At Annapolis Junction | Noncontrolling interests in Operating Partnership
Real Estate [Line Items]
Gain (loss) on sales of investment real estate						$ 5,400,000
Home Depot And Costco Outparcels at North Point
Real Estate [Line Items]
Gain (loss) on sales of investment real estate							$ 20,900,000
Dispositions of real estate investments, net of selling costs							$ 23,900,000
Autozone and Valvoline Outparcels at Sandbridge Commmons
Real Estate [Line Items]
Gain (loss) on sales of investment real estate					$ 2,400,000
Dispositions of real estate investments, net of selling costs					$ 3,500,000
The Everly | Retail
Real Estate [Line Items]
Gain (loss) on sales of investment real estate				$ 0
Dispositions of real estate investments, net of selling costs				1,500,000
Debt repayments				$ 800,000
Hanbury Village
Real Estate [Line Items]
Gain (loss) on sales of investment real estate																			$ 2,400,000
Dispositions of real estate investments, net of selling costs																			$ 2,900,000
Nexton Square
Real Estate [Line Items]
Gain (loss) on sales of investment real estate																		$ 0
Dispositions of real estate investments, net of selling costs																		900,000
Debt repayments																		$ 800,000
Oakland Marketplace
Real Estate [Line Items]
Gain (loss) on sales of investment real estate																	$ 1,100,000
Dispositions of real estate investments, net of selling costs																	$ 5,500,000
Easement Rights at Courthouse 7-Eleven
Real Estate [Line Items]
Gain (loss) on sales of investment real estate																$ 200,000
Dispositions of real estate investments, net of selling costs																$ 300,000
Socastee Commons Shopping Center
Real Estate [Line Items]
Gain (loss) on sales of investment real estate														$ (100,000)
Acquisition, cash consideration														$ 3,800,000
Impairment of real estate																					$ 3,000,000			$ 3,000,000
Courthouse 7-Eleven
Real Estate [Line Items]
Gain (loss) on sales of investment real estate													$ 1,100,000
Dispositions of real estate investments, net of selling costs													$ 3,100,000
Johns Hopkins Village
Real Estate [Line Items]
Gain (loss) on sales of investment real estate												$ 14,400,000
Dispositions of real estate investments, net of selling costs												$ 75,000,000
Brooks Crossing
Real Estate [Line Items]
Gain (loss) on sales of investment real estate											$ 0
Dispositions of real estate investments, net of selling costs											$ 500,000