Business and Organization - Schedule of Owned Properties (Details)	Dec. 31, 2018
4525 Main Street | Office
Business and Organization
Ownership interest percentage in property	100.00%
Armada Hoffler Tower | Office
Business and Organization
Ownership interest percentage in property	100.00%
One Columbus | Office
Business and Organization
Ownership interest percentage in property	100.00%
Two Columbus | Office
Business and Organization
Ownership interest percentage in property	100.00%
249 Central Park Retail | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Alexander Pointe | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Bermuda Crossroads | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Broad Creek Shopping Center | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Broadmoor Plaza | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Columbus Village | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Columbus Village II | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Commerce Street Retail | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Courthouse 7-Eleven | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Dick’s at Town Center | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Dimmock Square | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Fountain Plaza Retail | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Gainsborough Square | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Greentree Shopping Center | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Hanbury Village | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Harper Hill Commons | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Harrisonburg Regal | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Indian Lakes Crossing | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Lexington Square | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Lightfoot Marketplace | Retail
Business and Organization
Ownership interest percentage in property	70.00%
North Hampton Market | Retail
Business and Organization
Ownership interest percentage in property	100.00%
North Point Center | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Oakland Marketplace | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Parkway Centre | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Parkway Marketplace | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Patterson Place | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Perry Hall Marketplace | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Providence Plaza | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Renaissance Square | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Sandbridge Commons | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Socastee Commons | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Southgate Square | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Southshore Shops | Retail
Business and Organization
Ownership interest percentage in property	100.00%
South Retail | Retail
Business and Organization
Ownership interest percentage in property	100.00%
South Square | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Stone House Square | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Studio 56 Retail | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Tyre Neck Harris Teeter | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Wendover Village | Retail
Business and Organization
Ownership interest percentage in property	100.00%
Encore Apartments | Multifamily
Business and Organization
Ownership interest percentage in property	100.00%
Johns Hopkins Village | Multifamily
Business and Organization
Ownership interest percentage in property	100.00%
Liberty Apartments | Multifamily
Business and Organization
Ownership interest percentage in property	100.00%
Smith’s Landing | Multifamily
Business and Organization
Ownership interest percentage in property	100.00%
The Cosmopolitan | Multifamily
Business and Organization
Ownership interest percentage in property	100.00%