Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenues
Rental revenues	$ 27,096	$ 25,305	$ 81,083	$ 72,839
General contracting and real estate services revenues	41,201	38,552	161,391	108,555
Total revenues	68,297	63,857	242,474	181,394
Expenses
Rental expenses	6,830	5,834	19,069	16,234
Real estate taxes	2,693	2,356	7,797	7,087
General contracting and real estate services expenses	39,377	37,274	154,588	104,336
Depreciation and amortization	9,239	8,885	28,018	25,636
General and administrative expenses	2,098	2,156	7,762	6,864
Acquisition, development and other pursuit costs	61	345	477	1,486
Impairment charges	19	149	50	184
Total expenses	60,317	56,999	217,761	161,827
Operating income	7,980	6,858	24,713	19,567
Interest income	1,910	1,024	4,966	1,928
Interest expense	(4,253)	(4,124)	(13,282)	(11,893)
Loss on extinguishment of debt	0	(82)	0	(82)
Gain on real estate dispositions	4,692	3,753	8,087	30,440
Change in fair value of interest rate derivatives	87	498	300	(2,264)
Other income	74	35	154	154
Income before taxes	10,490	7,962	24,938	37,850
Income tax provision	(29)	(16)	(781)	(240)
Net income	10,461	7,946	24,157	37,610
Net income attributable to noncontrolling interests	(2,973)	(2,734)	(7,262)	(12,994)
Net income attributable to stockholders	$ 7,488	$ 5,212	$ 16,895	$ 24,616
Net income attributable to stockholders per share (basic and diluted) (in dollars per share)	$ 0.17	$ 0.15	$ 0.41	$ 0.77
Weighted-average common shares outstanding (basic and diluted) (in shares)	44,934	33,792	41,575	31,913
Dividends and distributions declared per common share and unit (in dollars per share)	$ 0.19	$ 0.18	$ 0.57	$ 0.54