CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues:
Rental income	$ 133,527	$ 113,080	$ 101,849
Interest income from mortgage loans	27,321	22,119	16,553
Interest and other income	735	1,004	559
Total revenues	161,583	136,203	118,961
Expenses:
Interest expense	26,442	17,497	13,128
Depreciation and amortization	35,932	29,431	25,529
Impairment on real estate	766	2,250
Provision for doubtful accounts	457	619	32
Transaction costs	179	744	195
General and administrative expenses	17,412	14,986	11,637
Total expenses	81,188	65,527	50,521
Operating income	80,395	70,676	68,440
Income from unconsolidated joint ventures	1,138	1,819
Gain on sale of real estate, net	3,582	586	4,959
Net income	85,115	73,081	73,399
Income allocated to participating securities	(385)	(484)	(481)
Income allocated to preferred stockholders		(2,454)	(3,273)
Net income available to common stockholders	$ 84,730	$ 70,143	$ 69,645
Earnings per common share:
Basic (in dollars per share)	$ 2.21	$ 1.97	$ 2.01
Diluted (in dollars per share)	$ 2.21	$ 1.94	$ 1.99
Weighted average shares used to calculate earnings per common share
Basic (in shares)	38,388	35,590	34,617
Diluted (in shares)	38,597	37,329	36,640