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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net income	$ 144,862	$ 232,678	$ 364,933	$ 306,476
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	$ (1,105)	$ (944)	$ (2,082)	$ (1,583)
Dilutive Securities Options	1,155	1,698	1,121	1,863
ATM forward sales		1		69
Denominator for net income per share – diluted	391,187	389,363	391,063	389,463
Net income per share - basic	$ 0.37	$ 0.59	$ 0.92	$ 0.78
Net income per share - diluted	$ 0.37	$ 0.59	$ 0.92	$ 0.78
ERPOP [Member]
Net income	$ 144,862	$ 232,678	$ 364,933	$ 306,476
Net (income) loss attributable to Noncontrolling Interests – Partially Owned Properties	(1,105)	(944)	(2,082)	(1,583)
Allocation to Preference Units	(773)	(773)	(1,545)	(1,545)
Numerator for net income per Unit – basic and diluted	$ 142,984	$ 230,961	$ 361,306	$ 303,348
Denominator for net income per Unit – basic	390,032	387,664	389,942	387,531
Dilutive Securities Options	1,155	1,698	1,121	1,863
ATM forward sales		1		69
Denominator for net income per share – diluted	391,187	389,363	391,063	389,463
Net income per share - basic	$ 0.37	$ 0.59	$ 0.92	$ 0.78
Net income per share - diluted	$ 0.37	$ 0.59	$ 0.92	$ 0.78