Earnings Per Share and Earnings Per Unit - Computation of Net Income per Unit Basic and Net Income per Unit Diluted for Operating Partnership (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net income	$ 868,488	$ 806,995	$ 1,396,714
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	$ (6,340)	$ (3,774)	$ (17,964)
Dilutive Securities Options	943	1,402	1,924
ATM forward sales		3	69
Denominator for net income per share – diluted	390,897	389,450	388,089
Earnings Per Share, Basic	$ 2.2	$ 2.06	$ 3.56
Earnings Per Share, Diluted	$ 2.2	$ 2.05	$ 3.54
ERPOP [Member]
Net income	$ 868,488	$ 806,995	$ 1,396,714
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(6,340)	(3,774)	(17,964)
Allocation to Preference Units	(3,090)	(3,090)	(3,090)
Numerator for net income per Unit – basic and diluted	$ 859,058	$ 800,131	$ 1,375,660
Denominator for net income per Unit – basic	389,954	388,045	386,096
Dilutive Securities Options	943	1,402	1,924
ATM forward sales		3	69
Denominator for net income per share – diluted	390,897	389,450	388,089
Earnings Per Share, Basic	$ 2.2	$ 2.06	$ 3.56
Earnings Per Share, Diluted	$ 2.2	$ 2.05	$ 3.54