Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Treasury Stock	Distributions in Excess of Net Income	Stockholders’ Investment	Nonredeemable Noncontrolling Interests
Beginning balance at Dec. 31, 2020	$ 4,495,538	$ 151,149	$ 5,542,762	$ (148,473)	$ (1,078,304)	$ 4,467,134	$ 28,404
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	29,311				29,110	29,110	201
Common stock issued pursuant to stock based compensation	(783)	91	(874)			(783)
Amortization of stock based compensation, net of forfeitures	1,661		1,661			1,661
Contributions from nonredeemable noncontrolling interests	1,695						1,695
Distributions to nonredeemable noncontrolling interests	(7)						(7)
Common dividends	(46,167)				(46,167)	(46,167)
Ending balance at Mar. 31, 2021	4,481,248	151,240	5,543,549	(148,473)	(1,095,361)	4,450,955	30,293
Beginning balance at Dec. 31, 2021	4,600,400	151,273	5,549,308	(148,473)	(985,338)	4,566,770	33,630
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	28,163				27,984	27,984	179
Common stock issued pursuant to stock based compensation	(930)	76	(1,006)			(930)
Amortization of stock based compensation, net of forfeitures	2,416		2,416			2,416
Contributions from nonredeemable noncontrolling interests	1,279						1,279
Distributions to nonredeemable noncontrolling interests	(86)						(86)
Common dividends	(48,597)				(48,597)	(48,597)
Ending balance at Mar. 31, 2022	$ 4,582,645	$ 151,349	$ 5,550,718	$ (148,473)	$ (1,005,951)	$ 4,547,643	$ 35,002