CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	PREFERRED SHARES	COMMON SHARES	ACCUMULATED DISTRIBUTIONS IN EXCESS OF NET INCOME	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	NONREDEEMABLE NONCONTROLLING INTERESTS
Beginning balance at Dec. 31, 2019	$ 679,902	$ 99,456	$ 917,400	$ (390,196)	$ (7,607)	$ 60,849
Beginning balance (in shares) at Dec. 31, 2019			12,098
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to controlling interests and noncontrolling interests	(7,844)			(7,007)		(837)
Change in fair value of derivatives	(9,753)				(9,753)
Distributions - common shares and units ($0.70 per share and unit)	(9,246)			(8,515)		(731)
Distributions – Series C preferred shares ($0.414625 per Series C share)	(1,705)			(1,705)
Share-based compensation, net of forfeitures (in shares)			1
Share-based compensation, net of forfeitures	465		$ 465
Sale of common shares, net (in shares)			50
Sale of common shares, net	3,352		$ 3,352
Redemption of units for common shares (in shares)			14
Redemption of units for common shares	(930)		$ (930)			930
Redemption of units for cash	(14)					(14)
Shares repurchased	(3,137)	(3,410)		273
Acquisition of redeemable noncontrolling interests	(12,221)		(7,584)			(4,637)
Other	(83)		$ (50)			(33)
Ending balance (in shares) at Mar. 31, 2020			12,163
Ending balance at Mar. 31, 2020	639,716	96,046	$ 912,653	(407,150)	(17,360)	55,527
Beginning balance at Dec. 31, 2020	672,823	93,530	$ 968,263	(427,681)	(15,905)	54,616
Beginning balance (in shares) at Dec. 31, 2020			13,027
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to controlling interests and noncontrolling interests	(5,319)			(4,867)		(452)
Change in fair value of derivatives	3,107				3,107
Distributions - common shares and units ($0.70 per share and unit)	(9,919)			(9,254)		(665)
Distributions – Series C preferred shares ($0.414625 per Series C share)	(1,607)			(1,607)
Share-based compensation, net of forfeitures (in shares)			3
Share-based compensation, net of forfeitures	810		$ 810
Sale of common shares, net (in shares)			164
Sale of common shares, net	11,782		$ 11,782
Redemption of units for common shares (in shares)			26
Redemption of units for common shares	(220)		$ (220)			220
Redemption of units for cash	(9)					(9)
Other (in shares)			0
Other	(216)		$ (182)			(34)
Ending balance (in shares) at Mar. 31, 2021			13,220
Ending balance at Mar. 31, 2021	$ 671,452	$ 93,530	$ 980,453	$ (443,409)	$ (12,798)	$ 53,676