Consolidated Statements of Equity - USD ($) shares in Thousands, $ in Thousands	Total	Redeemable Common Stock [Member]	Limited Partner [Member]	Limited Partner [Member]	General Partner [Member]	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Distributions in Excess Of Net Income [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	AOCI Attributable to Noncontrolling Interest [Member]	Noncontrolling Interests Operating Partnership [Member]	Noncontrolling Interests-Consolidated Real Estate Entities [Member]
Beginning Balance at Dec. 31, 2019	$ 6,289,459	$ 14,131				$ 9	$ 1,140	$ 7,166,073	$ (1,085,479)	$ (13,178)		$ 214,647	$ 6,247
Beginning Balance, Shares at Dec. 31, 2019						868	114,139
Net income	264,015		$ 264,015	$ 9,053					254,962			9,053
Other comprehensive Income (loss) - derivative instruments	1,088									1,050	$ 1,088	38
Issuance and registration of common shares	(208)	1,629					$ 1	(209)
Issuance and registration of common shares, Shares							157
Shares repurchased and retired	(5,657)				$ (5,657)			(5,657)
Shares repurchased and retired, Shares							(55)
Exercise of stock options	71				71			71
Exercise of stock options, Shares							1
Shares issued in exchange for common units								502				(502)
Shares issued in exchange for common units, Shares							10
Redeemable stock fair market value adjustment	363	(363)			363				363
Adjustment for noncontrolling interests in Operating Partnership	3,601			63	(63)			(25)				25	3,601
Amortization of unearned compensation	16,038							16,038
Dividends on preferred stock	(3,688)								(3,688)
Dividends on common stock	(460,340)								(460,340)
Dividends on noncontrolling interests units	(16,334)											(16,334)
Contributions from noncontrolling interest	3,601												3,601
Ending Balance at Dec. 31, 2020	6,088,408	15,397				$ 9	$ 1,141	7,176,793	(1,294,182)	(12,128)		206,927	9,848
Ending Balance, Shares at Dec. 31, 2020						868	114,252
Partners' Capital at Dec. 31, 2019	6,289,440	14,131		214,647	6,015,290				66,840		(13,584)		6,247
Net Income (Loss) Allocated to General Partners					251,274
Dividends, Preferred Stock, Cash	3,688								3,688
Issuance of units	(208)	1,629			(208)
General partner units issued in exchange for limited partner units				(502)	502
Amortization of unearned compensation	16,038				16,038
Distributions to common unitholders	(476,674)			(16,334)	(460,340)
Partners' Capital at Dec. 31, 2020	6,088,389	15,397		206,927	5,817,270				66,840		(12,496)		9,848
Net income	550,702		550,702	16,911					533,791			16,911
Other comprehensive Income (loss) - derivative instruments	1,114									996	1,114	118
Issuance and registration of common shares	(429)	1,657					$ 2	(431)
Issuance and registration of common shares, Shares							147
Shares repurchased and retired	(9,043)				(9,043)			(9,043)
Shares repurchased and retired, Shares							(64)
Exercise of stock options	1,478				1,478			1,478
Exercise of stock options, Shares							19
Shares issued in exchange for common units							$ 8	43,284				(43,292)
Shares issued in exchange for common units, Shares							851
Redeemable stock fair market value adjustment	(13,131)	13,131			(13,131)				(13,131)
Adjustment for noncontrolling interests in Operating Partnership	13,766			(605)	605			723				(723)	13,766
Amortization of unearned compensation	18,152							18,152
Dividends on preferred stock	(3,688)								(3,688)
Dividends on common stock	(478,597)								(478,597)
Dividends on noncontrolling interests units	(14,825)											(14,825)
Contributions from noncontrolling interest	13,766												13,766
Ending Balance at Dec. 31, 2021	6,153,907	30,185	6,153,888			$ 9	$ 1,151	7,230,956	(1,255,807)	(11,132)		165,116	23,614
Ending Balance, Shares at Dec. 31, 2021						868	115,205
Net Income (Loss) Allocated to General Partners					530,103
Dividends, Preferred Stock, Cash	3,688								3,688
Issuance of units	(429)	1,657			(429)
General partner units issued in exchange for limited partner units				(43,292)	43,292
Partners' Capital at Dec. 31, 2021	6,153,888	30,185		165,116	5,909,700				66,840		(11,382)		23,614
Amortization of unearned compensation	18,152				18,152
Distributions to common unitholders	(493,422)			(14,825)	(478,597)
Net income	654,776		654,776	17,633					637,436			17,633	(293)
Other comprehensive Income (loss) - derivative instruments	1,114									1,080	1,114	34
Issuance and registration of common shares	(123)	1,687					$ 1	(124)
Issuance and registration of common shares, Shares							169
Shares repurchased and retired	(14,043)				(14,043)			(14,043)
Shares repurchased and retired, Shares							(71)
Exercise of stock options	28				28			28
Shares issued in exchange for common units								2,118				(2,118)
Shares issued in exchange for common units, Shares							41
Shares reclassified to liabilities		(2,148)
Redeemable stock fair market value adjustment	9,053	(9,053)			9,053				9,053
Adjustment for noncontrolling interests in Operating Partnership	3,370			(1,165)	1,165			1,199				(1,199)	3,370
Amortization of unearned compensation	20,143							20,143
Dividends on preferred stock	(3,688)								(3,688)
Dividends on common stock	(575,848)								(575,848)
Dividends on noncontrolling interests units	(15,871)											(15,871)
Acquisition of noncontrolling interest	(43,070)				(37,443)			(37,443)					(5,627)
Contributions from noncontrolling interest	3,370												3,370
Ending Balance at Dec. 31, 2022	6,189,748	20,671	$ 6,189,729			$ 9	$ 1,152	$ 7,202,834	(1,188,854)	$ (10,052)		$ 163,595	21,064
Ending Balance, Shares at Dec. 31, 2022						868	115,344
Net Income (Loss) Allocated to General Partners					633,748
Dividends, Preferred Stock, Cash	3,688								3,688
Issuance of units	(123)	1,687			(123)
General partner units issued in exchange for limited partner units				(2,118)	2,118
Partners' Capital at Dec. 31, 2022	6,189,729	$ 20,671		163,595	5,948,498				$ 66,840		$ (10,268)		$ 21,064
Amortization of unearned compensation	20,143				20,143
Distributions to common unitholders	$ (591,719)			$ (15,871)	$ (575,848)