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, 2018	$ 643,449	$ 99,456	$ 899,234	$ (429,048)	$ (856)	$ 74,663
Beginning Balance (in shares) at Dec. 31, 2018			11,942
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss) attributable to controlling interests and nonredeemable noncontrolling interests	(5,843)			(4,698)		(1,145)
Change in fair value of derivatives	(2,283)				(2,283)
Distributions – common shares and units	(9,167)			(8,210)		(957)
Distributions – Series C preferred shares	(1,705)			(1,705)
Share-based compensation, net of forfeitures	436		$ 436
Redemption of units for cash	(156)					(156)
Shares repurchased (in shares)			(174)
Shares repurchased	(8,815)		$ (8,815)
Partners' Capital Account, Redemptions, Prior Period Adjustment	4,549		4,549
Other	(73)		$ (23)			(50)
Ending Balance (in shares) at Mar. 31, 2019			11,768
Ending Balance at Mar. 31, 2019	620,392	99,456	$ 895,381	(443,661)	(3,139)	72,355
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 nonredeemable noncontrolling interests	(7,844)			(7,007)		(837)
Change in fair value of derivatives	(9,753)				(9,753)
Distributions – common shares and units	(9,246)			(8,515)		(731)
Distributions – Series C preferred shares	(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	0		$ (930)			930
Redemption of units for cash	(14)					(14)
Shares repurchased (in shares)		(3,410)
Shares repurchased	(3,137)			273
Partners' Capital Account, Redemptions, Prior Period Adjustment	(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