Financial Instruments and Fair Value Measurements - Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Fair value of financial assets and liabilities
Provisions for impairment on real estate	$ 1,650	$ 11,011	$ 16,379	$ 30,977
Buildings and improvements	26,981,664		26,981,664		$ 25,155,178
Carrying value
Fair value of financial assets and liabilities
Mortgages payable assumed in connection with acquisitions	840,700		840,700		1,114,100
Notes and bonds payable	13,131,800		13,131,800		12,257,300
Estimated fair value
Fair value of financial assets and liabilities
Mortgages payable assumed in connection with acquisitions	808,300		808,300		1,154,700
Notes and bonds payable	11,331,800		11,331,800		13,114,500
Mortgages payable
Fair value of financial assets and liabilities
Unamortized net premiums	15,600		15,600		28,700
Deferred financing costs	926		926		790
Notes and bonds payable
Fair value of financial assets and liabilities
Unamortized net premiums	241,300		241,300		295,500
Deferred financing costs	$ 56,600		$ 56,600		$ 53,100