Indebtedness - Additional Information (Detail) (USD $)	12 Months Ended				12 Months Ended								0 Months Ended		12 Months Ended								0 Months Ended																				12 Months Ended		12 Months Ended				0 Months Ended	12 Months Ended							0 Months Ended	12 Months Ended				0 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended					0 Months Ended	12 Months Ended					0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Interest rate cap	Dec. 31, 2013 Sandbridge Commons	Dec. 31, 2013 Sandbridge Commons LIBOR	Dec. 31, 2013 Smith's Landing		Dec. 31, 2013 Smith's Landing LIBOR		Dec. 31, 2013 Whetstone Apartments	Dec. 31, 2013 Whetstone Apartments LIBOR	Oct. 08, 2013 Whetstone Apartments Interest rate cap	Sep. 01, 2013 4525 Main Street and Encore Apartments Interest rate cap	Dec. 31, 2013 Studio 56 Retail	Dec. 31, 2013 Dick's at Town Center	Dec. 31, 2013 Dick's at Town Center LIBOR	Dec. 31, 2013 IPO	Dec. 31, 2013 Minimum Interest rate cap	Dec. 31, 2013 Maximum Interest rate cap	Oct. 10, 2013 Operating Partnership	May 31, 2013 Operating Partnership	Oct. 11, 2013 Operating Partnership Bermuda Crossroads	Oct. 11, 2013 Operating Partnership One Columbus	Jan. 17, 2014 Subsequent Event Liberty Apartments	Mar. 14, 2014 Subsequent Event Interest rate cap	Dec. 19, 2013 Credit Facility Amendment Smith's Landing	Oct. 31, 2012 Credit Facility Amendment Dick's at Town Center	Oct. 31, 2013 Credit Facility Amendment Operating Partnership	Oct. 31, 2013 Credit Facility Amendment Operating Partnership LIBOR	Oct. 31, 2013 Credit Facility Amendment Operating Partnership Broad Creek Shopping Center	Oct. 31, 2013 Credit Facility Amendment Operating Partnership Broad Creek Shopping Center LIBOR	May 07, 2012 Refinancing Studio 56 Retail	Dec. 19, 2013 Construction Loans Sandbridge Commons	Dec. 19, 2013 Construction Loans Sandbridge Commons LIBOR	Oct. 08, 2013 Construction Loans Whetstone Apartments	Oct. 08, 2013 Construction Loans Whetstone Apartments LIBOR	Jul. 31, 2013 Construction Loans 4525 Main Street and Encore Apartments	Jul. 31, 2013 Construction Loans 4525 Main Street and Encore Apartments LIBOR	Oct. 11, 2013 Construction Loans Main Street Land	Feb. 28, 2014 Construction Loans Subsequent Event Oceaneering International Facility	Feb. 28, 2014 Construction Loans Subsequent Event Oceaneering International Facility LIBOR	Dec. 31, 2013 Revolving Credit Facility	Dec. 31, 2013 Revolving Credit Facility Minimum	Dec. 31, 2013 Revolving Credit Facility Minimum LIBOR	Dec. 31, 2013 Revolving Credit Facility Maximum	Dec. 31, 2013 Revolving Credit Facility Maximum LIBOR	Dec. 31, 2013 Revolving Credit Facility Operating Partnership	Sep. 01, 2013 Revolving Credit Facility Operating Partnership Interest rate cap	Dec. 31, 2013 Revolving Credit Facility Operating Partnership Minimum LIBOR	Dec. 31, 2013 Revolving Credit Facility Operating Partnership Maximum LIBOR	Dec. 31, 2013 Revolving Credit Facility Through December 31, 2014 Maximum	Dec. 31, 2013 Revolving Credit Facility Thereafter Maximum	Dec. 31, 2013 Revolving Credit Facility Unimproved land holdings Maximum	Dec. 31, 2013 Revolving Credit Facility Construction in Progress Maximum	Dec. 31, 2013 Revolving Credit Facility Unconsolidated Affiliates Maximum	Feb. 13, 2012 Note 5 North Point	Dec. 31, 2013 Note 5 North Point		Dec. 31, 2013 Note 5 North Point LIBOR		Feb. 13, 2012 Note 5 Interest rate swap lock North Point	Dec. 31, 2013 Note 5 Interest rate swap lock North Point	Apr. 15, 2013 Notes 2 Broad Creek Shopping Center	Dec. 31, 2013 Notes 2 Broad Creek Shopping Center		Dec. 31, 2013 Notes 2 Broad Creek Shopping Center LIBOR		Dec. 31, 2013 Notes 2 North Point	Dec. 07, 2012 Notes 2 Refinancing Broad Creek Shopping Center	Dec. 31, 2013 Notes 3 Broad Creek Shopping Center		Dec. 31, 2013 Notes 3 Broad Creek Shopping Center LIBOR		Dec. 31, 2013 Notes 3 North Point	Dec. 07, 2012 Notes 3 Refinancing Broad Creek Shopping Center
Debt Instrument [Line Items]
Stated interest rate, basis spread on variable rate						1.85%			2.15%	[1]		1.90%					2.75%													2.25%		2.25%			1.85%		1.90%		1.95%			1.75%			1.60%		2.20%			1.60%	2.20%						2.00%			2.00%	[2]	3.57%	3.57%				2.25%	[3]		2.75%			2.25%	[3]		2.75%
Debt instrument maturity date					Jan. 17, 2018		Jan. 31, 2017	[1]			Oct. 08, 2016				May 07, 2015	Oct. 31, 2017											Jan. 31, 2017	Oct. 31, 2017	Oct. 31, 2018		Oct. 31, 2018		May 07, 2015	Jan. 17, 2018		Oct. 08, 2016		Jan. 30, 2017			Feb. 28, 2018		May 13, 2016					May 13, 2016									Feb. 01, 2017	Feb. 01, 2017	[2]						Oct. 31, 2018	[3]			Sep. 15, 2025	Dec. 07, 2016	Oct. 31, 2018	[3]				Dec. 07, 2016
Debt, face vale																																	$ 2,900,000	$ 10,000,000		$ 18,500,000		$ 63,000,000			$ 19,500,000																													$ 11,100,000						$ 3,500,000
Debt assumed, interest rate															3.75%										5.66%								3.75%																																				7.25%
Debt instrument, additional borrowed amount	106,054,000	30,612,000	69,049,000																																																													2,700,000
Aggregate capacity under the credit facility																					155,000,000	100,000,000
Financial covenant, maximum leverage ratio as of the last day of each fiscal quarter																																																				65.00%	60.00%
Financial covenant, minimum fixed charge coverage ratio																																												175.00%
Financial covenant, minimum tangible net worth																																											At least the sum of 80% of tangiblenet worth on the closing date of the credit facility plus 75% of the net proceeds of any additional equity issuances
Financial covenant, maximum amount of variable rate indebtedness																																														30.00%
Financial covenant, maximum amount of secured recourse indebtedness																																														35.00%
Financial covenant, investments to total asset value																																														30.00%								5.00%	25.00%	5.00%
Credit facility, amount outstanding																																																70,000,000
Interest rate on credit facility as of end of period																																																1.93%
Interest rate cap agreement, notional amount	131,377,000	21,077,000		121,500,000									18,500,000	63,000,000												50,000,000																							40,000,000
Interest rate cap agreement, strike price													1.50%	3.50%					1.50%	3.50%						1.25%																							1.50%
Interest rate cap agreement, expiration date													Apr. 01, 2016	Mar. 01, 2016												Mar. 01, 2017																							Mar. 01, 2016
Gain (loss) on extinguishment of debt	(2,387,000)		(3,448,000)															(1,100,000)					100,000	(1,000,000)							(200,000)
Loss on extinguishment of debt, fees																		600,000
Loss on extinguishment of debt, unamortized debt issuance costs	644,000		1,083,000															500,000
Loan, amount repaid	149,961,000																						10,800,000	14,900,000																2,200,000																									2,697,000										9,242,000
Revolving credit facility, interest rate description																														LIBOR plus 2.25%		LIBOR plus 2.25%
Prepaid Loan																													1,400,000
Acquisition, assumption of debt																									$ 20,900,000
Debt assumed, term																									30 years

[1] Principal balance excluding fair value adjustments.

[2] Subject to an interest rate swap lock at a rate of 3.57%.

[3] Cross collateralized.