Condensed Consolidated Statement of Equity - USD ($) $ in Thousands	Total	Preferred stock	Common stock	Additional paid-in capital	Distributions in excess of earnings	Accumulated other comprehensive loss	Total stockholders' equity	Noncontrolling interests in investment entities	Noncontrolling interests in Operating Partnership
Beginning balance at Dec. 31, 2018	$ 455,890		$ 500	$ 357,353	$ (82,699)	$ (1,283)	$ 273,871		$ 182,019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,514				4,884		4,884		1,630
Unrealized cash flow hedge losses	(1,003)					(752)	(752)		(251)
Realized cash flow hedge losses reclassified to net income	72					54	54		18
Net proceeds from issuance of common and preferred stock	30,206		21	30,185			30,206
Restricted stock awards, net of tax withholding	755		1	754			755
Restricted stock award forfeitures	(4)			(4)			(4)
Redemption of operating partnership units	0		1	1,259			1,260		(1,260)
Dividends and distributions declared	(14,577)				(11,009)		(11,009)		(3,568)
Ending balance at Mar. 31, 2019	477,686		523	389,547	(88,949)	(1,981)	299,140		178,546
Beginning balance at Dec. 31, 2019	655,447	$ 63,250	563	455,680	(106,676)	(4,240)	408,577	$ 4,462	242,408
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	9,135				6,992		6,992	(92)	2,235
Unrealized cash flow hedge losses	(7,489)					(5,438)	(5,438)		(2,051)
Realized cash flow hedge losses reclassified to net income	392					285	285		107
Net proceeds from issuance of common and preferred stock	1,349		1	1,348			1,349
Restricted stock awards, net of tax withholding	783		1	782			783
Restricted stock award forfeitures	(6)			(6)			(6)
Dividends declared on preferred stock	(1,067)				(1,067)		(1,067)
Dividends and distributions declared	(17,134)				(12,454)		(12,454)		(4,680)
Ending balance at Mar. 31, 2020	$ 638,401	$ 63,250	$ 565	$ 457,804	$ (115,390)	$ (9,393)	$ 396,836	$ 4,370	$ 237,195