CONSOLIDATED STATEMENT OF EQUITY - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Total	Preferred Shares	Common Shares	Additional Paid-in Capital	Accumulated Distributions in Excess of Net Income	Deferred Compensation Obligation	Accumulated Other Comprehensive Loss	Treasury Stock at Cost	Non-Controlling Interests
Balance at Dec. 31, 2016	$ 3,246,012	$ 350,000	$ 36,630	$ 5,487,212	$ (2,632,327)	$ 15,149	$ (4,192)	$ (14,957)	$ 8,497
Issuance of common shares related to stock plans	5,757	0	37	5,720	0	0	0	0	0
Stock-based compensation, net	4,319	0	0	4,728	0	(5,066)	0	4,657	0
Distributions to non-controlling interests	(209)	0	0	0	0	0	0	0	(209)
Dividends declared-common shares	(69,815)	0	0	0	(69,815)	0	0	0	0
Dividends declared-preferred shares	(5,594)	0	0	0	(5,594)	0	0	0	0
Comprehensive (loss) income	(53,223)	0	0	0	(54,241)	0	760	0	258
Balance at Mar. 31, 2017	$ 3,127,247	$ 350,000	$ 36,667	$ 5,497,660	$ (2,761,977)	$ 10,083	$ (3,432)	$ (10,300)	$ 8,546