Consolidated Statement of Capital and Noncontrolling Interests - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Common Stock, Shares, Outstanding	158,548,298	158,174,995
Effective portion of interest rate contracts	$ (19,601)	$ 9,202	$ (14,405)
Amortization of interest rate contracts	8,126	12,618	6,703
Capped call transactions premium	(35,000)	0	0
Acquisition of noncontrolling interest in property partnership	(43,604)
Proceeds from Noncontrolling Interests	84,271	376,544	244,541
Distributions to noncontrolling interests in property partnerships	$ (83,129)	$ (77,704)	$ (69,975)
General Partner [Member]
Common Stock, Shares, Outstanding	1,768,000	1,762,000	1,755,000	1,750,000
Net activity from contributions and unearned compensation	2,000	5,000	5,000
Conversion of redeemable partnership units	4,000	2,000	0
Limited Partner [Member]
Common Stock, Shares, Outstanding	156,780,000	156,413,000	155,185,000	155,008,000
Net activity from contributions and unearned compensation	80,000	82,000	75,000
Conversion of redeemable partnership units	287,000	1,146,000	102,000
Partners' Capital (General and Limited Partners)[Member]
Beginning Balance	$ 4,230,155	$ 4,391,985	$ 4,973,951	$ 5,299,428
Net activity from contributions and unearned compensation, value	6,924	5,657	4,321
Allocated net income for the period	289,090	21,080	197,223
Distributions	(532,220)	(617,695)	(615,011)
Conversion of redeemable partnership units, value	9,113	40,564	3,794
Adjustment to reflect redeemable partnership units at redemption value	104,372	(105,663)	(76,220)
Capped call transactions premium	(35,000)
Acquisition of noncontrolling interest in property partnership	(139)
Proceeds from Noncontrolling Interests	(3,970)	74,091	160,416
Accumulated Other Comprehensive Loss [Member]
Beginning Balance	(12,921)	(2,072)	(21,147)	(13,718)
Effective portion of interest rate contracts	(17,646)	8,262	(12,927)
Amortization of interest rate contracts	6,797	10,813	5,498
Noncontrolling interest - property partnerships [Member]
Beginning Balance	1,970,949	1,933,545	1,640,704	1,547,317
Allocated net income for the period	75,181	67,516	78,661
Amortization of interest rate contracts	576	576	576
Acquisition of noncontrolling interest in property partnership	(43,465)
Proceeds from Noncontrolling Interests	88,241	302,453	84,125
Distributions to noncontrolling interests in property partnerships	(83,129)	(77,704)	(69,975)
Total Capital [Member]
Beginning Balance	6,188,183	6,323,458	6,593,508	6,833,027
Net activity from contributions and unearned compensation, value	6,924	5,657	4,321
Allocated net income for the period	364,271	88,596	275,884
Distributions	(532,220)	(617,695)	(615,011)
Conversion of redeemable partnership units, value	9,113	40,564	3,794
Adjustment to reflect redeemable partnership units at redemption value	104,372	(105,663)	(76,220)
Effective portion of interest rate contracts	(17,646)	8,262	(12,927)
Amortization of interest rate contracts	7,373	11,389	6,074
Capped call transactions premium	(35,000)
Acquisition of noncontrolling interest in property partnership	(43,604)
Proceeds from Noncontrolling Interests	84,271	376,544	244,541
Distributions to noncontrolling interests in property partnerships	(83,129)	(77,704)	(69,975)
Noncontrolling interest - Redeemable partnership units [Member]
Beginning Balance	1,272,719	1,378,573	1,347,575	$ 1,280,886
Net activity from contributions and unearned compensation, value	38,973	34,815	45,895
Allocated net income for the period	32,014	2,400	22,548
Distributions	(62,154)	(73,485)	(73,331)
Conversion of redeemable partnership units, value	(9,113)	(40,564)	(3,794)
Adjustment to reflect redeemable partnership units at redemption value	(104,372)	105,663	76,220
Effective portion of interest rate contracts	(1,955)	940	(1,478)
Amortization of interest rate contracts	$ 753	$ 1,229	$ 629

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