Condensed Consolidated Statements Of Equity - USD ($) $ in Thousands	Total	Common shares of beneficial interest	Additional paid-in capital	Distributions in excess of net income attributable to common shareholders	Treasury shares, at cost	Accumulated other comprehensive income	Non-controlling interests
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 4,747,189	$ 1,158	$ 5,930,729	$ (897,931)	$ (359,732)	$ 974	$ 71,991
Net Income	40,767			38,822			1,945
Other comprehensive income	351					351
Net share awards	14,790		6,150		8,640
Employee share purchase plan	102		102
Cash distributions declared to equity holders	(115,981)			(114,307)			(1,674)
Other	$ 0	(1)	1
Cash distributions declared to equity holders per common share	$ 1.05
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 4,687,218	1,157	5,936,982	(973,416)	(351,092)	1,325	72,262
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	4,438,253	1,157	5,948,938	(969,240)	(620,497)	2,165	75,730
Net Income	44,374			42,449			1,925
Other comprehensive income	357					357
Net share awards	12,796		(487)		13,283
Employee share purchase plan	60		60
Common shares repurchased	(278,838)				(278,838)
Cash distributions declared to equity holders	$ (112,151)			(110,461)			(1,690)
Cash distributions declared to equity holders per common share	$ 1.06
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 4,104,851	$ 1,157	$ 5,948,511	$ (1,037,252)	$ (886,052)	$ 2,522	$ 75,965