Business of Organization (Details)	9 Months Ended
	Sep. 30, 2016
Business and Organization
Ownership interest percentage in properties	100.00%
Brooks Crossing
Business and Organization
Ownership interest percentage in properties	65.00%
Johns Hopkins Village
Business and Organization
Ownership interest percentage in properties	80.00%
Noncontrolling interest ownership percentage in properties	20.00%
Period for exchange of ownership interest after project completion	1 year
Percentage of preferred return on investment	9.00%
Lightfoot Marketplace
Business and Organization
Ownership interest percentage in properties	70.00%
Town Center Phase VI
Business and Organization
Ownership interest percentage in properties	80.00%
Harding Place
Business and Organization
Ownership interest percentage in properties	80.00%