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	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net income	$ 264,798	$ 305,032
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,104)	(970)
Premium on redemption of Preferred Shares - cash charge	$ 0	$ (1,444)
Dilutive Securities Options	1,460	1,080
Denominator for net income per share – diluted	391,179	390,561
Net income per share - basic	$ 0.68	$ 0.78
Net income per share - diluted	$ 0.67	$ 0.77
ERPOP [Member]
Net income	$ 264,798	$ 305,032
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,104)	(970)
Allocation to Preference Units	(356)	(547)
Premium on redemption of Preferred Shares - cash charge	0	(1,444)
Numerator for net income per Unit – basic and diluted	$ 263,338	$ 302,071
Denominator for net income per Unit – basic	389,719	389,481
Dilutive Securities Options	1,460	1,080
Denominator for net income per share – diluted	391,179	390,561
Net income per share - basic	$ 0.68	$ 0.78
Net income per share - diluted	$ 0.67	$ 0.77