CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Preferred Stock	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, 2016	$ 115,000	$ 334	$ 438,531	$ (101)	$ (118,038)	$ 435,726	$ 161,360	$ 597,086
Balance (in shares) at Dec. 31, 2016		33,896,771
Increase (Decrease) in Stockholders' Equity
Redemption of noncontrolling interests			167			167	(167)
Redemption of noncontrolling interests (in shares)		15,011
Redemption of preferred stock	$ (115,000)		4,326		(4,326)	(115,000)		(115,000)
Issuance of stock awards, net of forfeitures (in shares)		131,272
Exercise of stock options		$ 2	4,818			4,820		4,820
Exercise of stock options (in shares)		197,761
Share-based compensation		$ 2	9,653			9,655		9,655
Dividends declared on preferred stock					(7,924)	(7,924)		(7,924)
Dividends and distributions					(122,133)	(122,133)	(49,554)	(171,687)
Net income					74,855	74,855	25,636	100,491
Other comprehensive income (loss)				854		854	349	1,203
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		$ 23	20,852	127		21,002	(21,002)
Redemption of noncontrolling interests (in shares)		2,261,068
Issuance of stock awards, net of forfeitures (in shares)		188,152
Exercise of stock options			310			310		310
Exercise of stock options (in shares)		18,656
Share-based compensation		$ 2	12,657			12,659		12,659
Dividends and distributions					(147,285)	(147,285)	(52,456)	(199,741)
Net income					77,922	77,922	28,841	106,763
Other comprehensive income (loss)				(3,073)		(3,073)	(929)	(4,002)
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
Redemption of noncontrolling interests		$ 8	5,414	(174)		5,248	(5,248)
Redemption of noncontrolling interests (in shares)		803,610
Issuance of stock awards, net of forfeitures (in shares)		171,354
Exercise of stock options			364			364		364
Exercise of stock options (in shares)		17,387
Share-based compensation		$ 2	15,232			15,234		15,234
Dividends and distributions					(177,420)	(177,420)	(53,134)	(230,554)
Net income					75,840	75,840	23,197	99,037
Other comprehensive income (loss)				(3,659)		(3,659)	(1,167)	(4,826)
Balance at Dec. 31, 2019		$ 373	$ 512,324	$ (6,026)	$ (348,509)	$ 158,162	$ 55,726	$ 213,888
Balance (in shares) at Dec. 31, 2019		37,701,042