Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Rental revenues	$ 28,598	$ 26,755	$ 57,297	$ 53,987
Total revenues	49,252	83,426	101,001	174,177
Expenses
Rental expenses	6,522	6,171	12,946	12,239
Real estate taxes	2,735	2,595	5,548	5,104
Depreciation and amortization	9,179	9,304	18,457	18,779
General and administrative expenses	2,764	2,678	5,725	5,664
Acquisition, development and other pursuit costs	9	369	93	416
Impairment charges	98	27	98	31
Total expenses	41,394	75,159	85,368	157,444
Operating income	7,858	8,267	15,633	16,733
Interest income	2,375	1,658	4,607	3,056
Interest expense	(4,497)	(4,494)	(8,870)	(9,029)
Gain on real estate dispositions	0	0	0	3,395
Change in fair value of interest rate derivatives	(11)	(81)	958	213
Other income	54	43	168	80
Income before taxes	5,779	5,393	12,496	14,448
Income tax benefit (provision)	166	(450)	432	(752)
Net income	5,945	4,943	12,928	13,696
Net income attributable to noncontrolling interests	(1,626)	(1,472)	(3,569)	(4,289)
Net income attributable to stockholders	$ 4,319	$ 3,471	$ 9,359	$ 9,407
Net income attributable to stockholders per share (basic and diluted) (in dollars per share)	$ 0.09	$ 0.08	$ 0.21	$ 0.24
Weighted-average common shares outstanding (basic and diluted) (in shares)	45,928	42,091	45,532	39,869
Dividends and distributions declared per common share and unit (in dollars per share)	$ 0.2	$ 0.19	$ 0.4	$ 0.38
General contracting and real estate services
General contracting and real estate services revenues	$ 20,654	$ 56,671	$ 43,704	$ 120,190
General contracting and real estate services expenses	$ 20,087	$ 54,015	$ 42,501	$ 115,211