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, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income	$ 806,995	$ 1,396,714	$ 962,501
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	$ (3,774)	$ (17,964)	$ (14,855)
Dilutive Securities Options	1,402	1,924	1,080
ATM forward sales	3	69
Denominator for net income per share – diluted	389,450	388,089	385,874
Earnings Per Share, Basic	$ 2.06	$ 3.56	$ 2.45
Earnings Per Share, Diluted	$ 2.05	$ 3.54	$ 2.45
ERPOP [Member]
Net income	$ 806,995	$ 1,396,714	$ 962,501
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(3,774)	(17,964)	(14,855)
Allocation to Preference Units	(3,090)	(3,090)	(3,090)
Numerator for net income per Unit – basic and diluted	$ 800,131	$ 1,375,660	$ 944,556
Denominator for net income per Unit – basic	388,045	386,096	384,794
Dilutive Securities Options	1,402	1,924	1,080
ATM forward sales	3	69
Denominator for net income per share – diluted	389,450	388,089	385,874
Earnings Per Share, Basic	$ 2.06	$ 3.56	$ 2.45
Earnings Per Share, Diluted	$ 2.05	$ 3.54	$ 2.45