Significant Accounting Policies - Additional Information (Detail) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) segment	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Accounting Policies [Line Items]
Business segments | segment	4
Straight-line rent adjustments	$ 1,900	$ 2,200	$ 1,100
Contingent rents included in revenue	100	100	100
Leasing incentive amortization	800	700	800
Interest capitalized	1,000	3,100	600
Indirect project costs	2,100	2,400	1,600
Capitalized preacquisition development costs	2,504	4,550
Accounts receivable, net	21,982	20,548
Stock-based compensation expense	931	917	$ 1,249
Capitalized stock-based compensation	$ 400	400
Percentage of taxable income for distributions to stockholders	90.00%
Accrued Straight-line Rental Revenue [Member]
Accounting Policies [Line Items]
Accounts receivable, net	$ 20,300	$ 19,400