Real Estate Investments and Equity Method Investments - Summary of the Purchase Price Allocation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Delray Beach Plaza
Business Acquisition [Line Items]
Land	$ 0
Above-market leases	0
Below-market leases	(3,121)
Finance lease liabilities	(27,940)
Finance lease right-of-use assets	24,466
Fair value adjustment on acquired debt	0
Net assets acquired	27,765
Overlook Village
Business Acquisition [Line Items]
Land	6,328
Above-market leases	81
Below-market leases	(2,146)
Finance lease liabilities	0
Finance lease right-of-use assets	0
Fair value adjustment on acquired debt	0
Net assets acquired	28,362
Greenbrier Square
Business Acquisition [Line Items]
Land	8,549
Above-market leases	1,753
Below-market leases	(1,365)
Finance lease liabilities	0
Finance lease right-of-use assets	0
Fair value adjustment on acquired debt	(11)
Net assets acquired	36,777
Nexton Square
Business Acquisition [Line Items]
Land	9,885
Below-market leases	(1,877)
Fair value adjustment on acquired debt	(364)
Net assets acquired	41,371
Edison Apartments
Business Acquisition [Line Items]
Land	3,428
Below-market leases	(140)
Fair value adjustment on acquired debt	6
Net assets acquired	23,746
The Residences at Annapolis Junction
Business Acquisition [Line Items]
Land	14,774
Below-market leases	0
Fair value adjustment on acquired debt	0
Net assets acquired	123,654
Wendover Village
Business Acquisition [Line Items]
Land		$ 1,633
Below-market leases		0
Finance lease liabilities		0
Finance lease right-of-use assets		0
Net assets acquired		2,783
One City Center
Business Acquisition [Line Items]
Land		2,678
Below-market leases		0
Finance lease liabilities		0
Finance lease right-of-use assets		0
Net assets acquired		46,020
1405 Point
Business Acquisition [Line Items]
Land		0
Below-market leases		0
Finance lease liabilities		(8,671)
Finance lease right-of-use assets		11,730
Net assets acquired		101,896
Red Mill Commons
Business Acquisition [Line Items]
Land		44,252
Below-market leases		(6,221)
Finance lease liabilities		0
Finance lease right-of-use assets		0
Net assets acquired		79,815
Marketplace at Hilltop
Business Acquisition [Line Items]
Land		2,023
Below-market leases		(1,136)
Finance lease liabilities		(9,200)
Finance lease right-of-use assets		12,770
Net assets acquired		29,507
Thames Street Wharf
Business Acquisition [Line Items]
Land		15,861
Below-market leases		(3,636)
Finance lease liabilities		0
Finance lease right-of-use assets		0
Net assets acquired		101,299
Site improvements | Delray Beach Plaza
Business Acquisition [Line Items]
Property, plant, and equipment	4,607
Site improvements | Overlook Village
Business Acquisition [Line Items]
Property, plant, and equipment	1,727
Site improvements | Greenbrier Square
Business Acquisition [Line Items]
Property, plant, and equipment	1,974
Site improvements | Nexton Square
Business Acquisition [Line Items]
Property, plant, and equipment	3,690
Site improvements | Edison Apartments
Business Acquisition [Line Items]
Property, plant, and equipment	0
Site improvements | The Residences at Annapolis Junction
Business Acquisition [Line Items]
Property, plant, and equipment	1,786
Site improvements | Wendover Village
Business Acquisition [Line Items]
Property, plant, and equipment		50
Site improvements | One City Center
Business Acquisition [Line Items]
Property, plant, and equipment		163
Site improvements | 1405 Point
Business Acquisition [Line Items]
Property, plant, and equipment		298
Site improvements | Red Mill Commons
Business Acquisition [Line Items]
Property, plant, and equipment		2,558
Site improvements | Marketplace at Hilltop
Business Acquisition [Line Items]
Property, plant, and equipment		691
Site improvements | Thames Street Wharf
Business Acquisition [Line Items]
Property, plant, and equipment		150
Building and improvements | Delray Beach Plaza
Business Acquisition [Line Items]
Property, plant, and equipment	22,544
Building and improvements | Overlook Village
Business Acquisition [Line Items]
Property, plant, and equipment	18,375
Building and improvements | Greenbrier Square
Business Acquisition [Line Items]
Property, plant, and equipment	19,196
Building and improvements | Nexton Square
Business Acquisition [Line Items]
Property, plant, and equipment	24,070
Building and improvements | Edison Apartments
Business Acquisition [Line Items]
Property, plant, and equipment	18,227
Building and improvements | The Residences at Annapolis Junction
Business Acquisition [Line Items]
Property, plant, and equipment	101,219
Building and improvements | Wendover Village
Business Acquisition [Line Items]
Property, plant, and equipment		888
Building and improvements | One City Center
Business Acquisition [Line Items]
Property, plant, and equipment		28,039
Building and improvements | 1405 Point
Business Acquisition [Line Items]
Property, plant, and equipment		92,866
Building and improvements | Red Mill Commons
Business Acquisition [Line Items]
Property, plant, and equipment		27,790
Building and improvements | Marketplace at Hilltop
Business Acquisition [Line Items]
Property, plant, and equipment		19,195
Building and improvements | Thames Street Wharf
Business Acquisition [Line Items]
Property, plant, and equipment		64,539
Furniture and fixtures | Nexton Square
Business Acquisition [Line Items]
Property, plant, and equipment	0
Furniture and fixtures | Edison Apartments
Business Acquisition [Line Items]
Property, plant, and equipment	355
Furniture and fixtures | The Residences at Annapolis Junction
Business Acquisition [Line Items]
Property, plant, and equipment	1,796
Furniture and fixtures | Wendover Village
Business Acquisition [Line Items]
Property, plant, and equipment		0
Furniture and fixtures | One City Center
Business Acquisition [Line Items]
Property, plant, and equipment		0
Furniture and fixtures | 1405 Point
Business Acquisition [Line Items]
Property, plant, and equipment		2,302
Furniture and fixtures | Red Mill Commons
Business Acquisition [Line Items]
Property, plant, and equipment		0
Furniture and fixtures | Marketplace at Hilltop
Business Acquisition [Line Items]
Property, plant, and equipment		0
Furniture and fixtures | Thames Street Wharf
Business Acquisition [Line Items]
Property, plant, and equipment		0
In-place lease assets | Delray Beach Plaza
Business Acquisition [Line Items]
Finite-lived intangibles	7,209
In-place lease assets | Overlook Village
Business Acquisition [Line Items]
Finite-lived intangibles	3,997
In-place lease assets | Greenbrier Square
Business Acquisition [Line Items]
Finite-lived intangibles	6,659
In-place lease assets | Nexton Square
Business Acquisition [Line Items]
Finite-lived intangibles	5,239
In-place lease assets | Edison Apartments
Business Acquisition [Line Items]
Finite-lived intangibles	1,882
In-place lease assets | The Residences at Annapolis Junction
Business Acquisition [Line Items]
Finite-lived intangibles	$ 4,079
In-place lease assets | Wendover Village
Business Acquisition [Line Items]
Finite-lived intangibles		101
In-place lease assets | One City Center
Business Acquisition [Line Items]
Finite-lived intangibles		15,140
In-place lease assets | 1405 Point
Business Acquisition [Line Items]
Finite-lived intangibles		3,371
In-place lease assets | Red Mill Commons
Business Acquisition [Line Items]
Finite-lived intangibles		9,973
In-place lease assets | Marketplace at Hilltop
Business Acquisition [Line Items]
Finite-lived intangibles		4,565
In-place lease assets | Thames Street Wharf
Business Acquisition [Line Items]
Finite-lived intangibles		24,385
Above-market leases | Wendover Village
Business Acquisition [Line Items]
Finite-lived intangibles		111
Above-market leases | One City Center
Business Acquisition [Line Items]
Finite-lived intangibles		0
Above-market leases | 1405 Point
Business Acquisition [Line Items]
Finite-lived intangibles		0
Above-market leases | Red Mill Commons
Business Acquisition [Line Items]
Finite-lived intangibles		1,463
Above-market leases | Marketplace at Hilltop
Business Acquisition [Line Items]
Finite-lived intangibles		599
Above-market leases | Thames Street Wharf
Business Acquisition [Line Items]
Finite-lived intangibles		$ 0