Segments - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		0 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013 Tenants	Jun. 30, 2014	Jun. 30, 2013 Tenants	Jun. 30, 2014 General and Administrative Expense [Member]	Jun. 30, 2013 General and Administrative Expense [Member]	Jun. 30, 2014 General and Administrative Expense [Member]	Jun. 30, 2013 General and Administrative Expense [Member]	Jan. 17, 2014 Bermuda Crossroads and Smith's Landing [Member]	May 13, 2013 Bermuda Crossroads and Smith's Landing [Member]	Jun. 30, 2014 General Contracting and Real Estate Services [Member]	Jun. 30, 2013 General Contracting and Real Estate Services [Member]	Jun. 30, 2014 General Contracting and Real Estate Services [Member]	Jun. 30, 2013 General Contracting and Real Estate Services [Member]	Jun. 30, 2014 General Contracting and Real Estate Services [Member] Intersegment Eliminations [Member]	Jun. 30, 2013 General Contracting and Real Estate Services [Member] Intersegment Eliminations [Member]	Jun. 30, 2014 General Contracting and Real Estate Services [Member] Intersegment Eliminations [Member]	Jun. 30, 2013 General Contracting and Real Estate Services [Member] Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
General contracting and real estate services revenues	$ 20,495,000	$ 23,291,000	$ 39,729,000	$ 41,247,000							$ 20,495,000	$ 23,291,000	$ 39,729,000	$ 41,247,000	$ (25,900,000)	$ (3,700,000)	$ (44,600,000)	$ (5,700,000)
General contracting and real estate services expenses	19,354,000	22,503,000	37,339,000	39,961,000							19,354,000	22,503,000	37,339,000	39,961,000	(25,500,000)	(3,600,000)	(44,000,000)	(5,600,000)
Non-cash stock compensation			522,000	769,000	100,000	800,000	300,000	800,000			100,000		200,000
Impairment of unamortized leasing assets		533,000		533,000
Number of vacated retail tenants		2		2
Repayment of debt financed by proceeds from IPO and credit facility		150,000,000		150,000,000
Loss on extinguishment of debt		(1,125,000)		(1,125,000)
Loss on extinguishment of debt, fees				600,000
Loss on extinguishment of debt, unamortized debt issuance costs				508,000
Percentage of Operating Partnership acquired	100.00%		100.00%							100.00%
Gain loss from remeasurement of equity method investment									$ 9,500,000