Summary of Repayment of Debt (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended
	May 31, 2013
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	$ 147,264
Armada Hoffler Tower
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	38,813
Richmond Tower
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	46,523
Two Columbus
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	18,785
Virginia Natural Gas
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	5,457
Sentara Williamsburg
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	10,915
North Point | Notes 3
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	9,242
Gainsborough Square
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	9,732
Parkway Marketplace
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	5,669
Courthouse 7-Eleven | Notes 1
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	1,485
Oyster Point
Scheduled Principal Payments For Borrowings [Line Items]
Repayment of debt	$ 643