Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid- In-Capital	Treasury Stock	Accumulated Other Comprehensive Income	Retained Earnings	Noncontrolling Interests	Series I Preferred Stock Series I Preferred Stock
Beginning balance at Dec. 31, 2021	$ 4,778,253	$ 672	$ 3,739,409	$ (126,160)	$ (46,758)	$ 975,781	$ 13,377	$ 221,932
Beginning balance (in shares) at Dec. 31, 2021		64,105
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(15,266)					(17,535)	2,269
Acquisition of subsidiary interest from noncontrolling interest	(29,817)		(29,742)				(75)
Other comprehensive income	104,332				104,332
Preferred dividends	(11,213)					(11,213)
DRSPP proceeds (in shares)		6
DRSPP proceeds	339		339
Reallocation of noncontrolling interest in the Operating Partnership	23,539					23,539
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings (in shares)		215
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings	22,147	$ 3	22,144
Repurchases of common stock (in shares)		(1,971)
Repurchases of common stock	(151,197)	$ (20)	(114,979)			(36,198)
Contribution to consolidated joint venture interests	52,164						52,164
Cash distributions to noncontrolling interests	(3,168)						(3,168)
Issuance of special dividend paid primarily in stock (in shares)		1,961
Issuance of special dividend paid primarily in stock	160,620		163,115	(2,495)
Cash distributions declared	(178,512)					(178,512)
Ending balance at Sep. 30, 2022	4,752,221	$ 655	3,780,286	(128,655)	57,574	755,862	64,567	221,932
Ending balance (in shares) at Sep. 30, 2022		64,316
Beginning balance at Dec. 31, 2021	4,778,253	$ 672	3,739,409	(126,160)	(46,758)	975,781	13,377	221,932
Beginning balance (in shares) at Dec. 31, 2021		64,105
Ending balance at Dec. 31, 2022	4,646,922	$ 656	3,790,358	(128,655)	49,604	651,138	61,889	221,932
Ending balance (in shares) at Dec. 31, 2022		64,380
Beginning balance at Jun. 30, 2022	4,748,764	$ 655	3,801,272	(128,655)	8,595	779,999	64,966	221,932
Beginning balance (in shares) at Jun. 30, 2022		64,302
Increase (Decrease) in Stockholders' Equity
Net income (loss)	10,122					11,115	(993)
Acquisition of subsidiary interest from noncontrolling interest	(29,817)		(29,742)				(75)
Other comprehensive income	48,979				48,979
Preferred dividends	(3,738)					(3,738)
DRSPP proceeds (in shares)		3
DRSPP proceeds	140		140
Reallocation of noncontrolling interest in the Operating Partnership	28,624					28,624
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings (in shares)		11
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings	8,616		8,616
Contribution to consolidated joint venture interests	817						817
Cash distributions to noncontrolling interests	(148)						(148)
Cash distributions declared	(60,138)					(60,138)
Ending balance at Sep. 30, 2022	4,752,221	$ 655	3,780,286	(128,655)	57,574	755,862	64,567	221,932
Ending balance (in shares) at Sep. 30, 2022		64,316
Beginning balance at Dec. 31, 2022	4,646,922	$ 656	3,790,358	(128,655)	49,604	651,138	61,889	221,932
Beginning balance (in shares) at Dec. 31, 2022		64,380
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(417,138)					(412,679)	(4,459)
Other comprehensive income	20,012				20,012
Preferred dividends	(11,213)					(11,213)
DRSPP proceeds (in shares)		15
DRSPP proceeds	439		439
Reallocation of noncontrolling interest in the Operating Partnership	(8,072)					(8,072)
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings (in shares)		3
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings	22,961		22,961
Contribution to consolidated joint venture interests	11,714						11,714
Cash distributions to noncontrolling interests	(1,614)						(1,614)
Cash distributions declared	(156,768)					(156,768)
Ending balance at Sep. 30, 2023	4,107,243	$ 656	3,813,758	(128,655)	69,616	62,406	67,530	221,932
Ending balance (in shares) at Sep. 30, 2023		64,398
Beginning balance at Jun. 30, 2023	4,159,833	$ 656	3,805,704	(128,655)	57,769	135,518	66,909	221,932
Beginning balance (in shares) at Jun. 30, 2023		64,387
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(22,023)					(20,229)	(1,794)
Other comprehensive income	11,847				11,847
Preferred dividends	(3,738)					(3,738)
DRSPP proceeds (in shares)		3
DRSPP proceeds	97		97
Reallocation of noncontrolling interest in the Operating Partnership	3,126					3,126
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings (in shares)		8
Deferred compensation plan and stock awards, net of forfeitures and tax withholdings	7,957		7,957
Contribution to consolidated joint venture interests	3,266						3,266
Cash distributions to noncontrolling interests	(851)						(851)
Cash distributions declared	(52,271)					(52,271)
Ending balance at Sep. 30, 2023	$ 4,107,243	$ 656	$ 3,813,758	$ (128,655)	$ 69,616	$ 62,406	$ 67,530	$ 221,932
Ending balance (in shares) at Sep. 30, 2023		64,398