CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Distributions in Excess of Net Income	Total Stockholders' Equity	Noncontrolling Interests	Total
Balance at Dec. 31, 2017	$ 338	$ 457,495	$ 753	$ (177,566)	$ 281,020	$ 137,624	$ 418,644
Balance (in shares) at Dec. 31, 2017	34,240,815
Increase (Decrease) in Stockholders' Equity
Redemption of noncontrolling interests		70			70	(70)
Redemption of noncontrolling interests (in shares)	7,056
Issuance of stock awards, net of forfeitures (in shares)	201,181
Exercise of stock options		100			100		100
Exercise of stock options (in shares)	5,161
Share-based compensation	$ 2	2,739			2,741		2,741
Dividends and distributions				(33,749)	(33,749)	(13,553)	(47,302)
Net income				20,302	20,302	8,264	28,566
Other comprehensive income			410		410	167	577
Balance at Mar. 31, 2018	$ 340	460,404	1,163	(191,013)	270,894	132,432	403,326
Balance (in shares) at Mar. 31, 2018	34,454,213
Balance at Dec. 31, 2018	$ 363	491,314	(2,193)	(246,929)	242,555	92,078	334,633
Balance (in shares) at Dec. 31, 2018	36,708,691
Increase (Decrease) in Stockholders' Equity
Issuance of stock awards, net of forfeitures (in shares)	192,009
Exercise of stock options		17			17		17
Exercise of stock options (in shares)	1,129
Share-based compensation	$ 1	3,592			3,593		3,593
Dividends and distributions				(40,581)	(40,581)	(12,733)	(53,314)
Net income				19,661	19,661	6,244	25,905
Other comprehensive income			(3,540)		(3,540)	(1,124)	(4,664)
Balance at Mar. 31, 2019	$ 364	$ 494,923	$ (5,733)	$ (267,849)	$ 221,705	$ 84,465	$ 306,170
Balance (in shares) at Mar. 31, 2019	36,901,829