Financial Instruments and Fair Value Measurements - Items Measured at Fair Value on a Non-Recurring Basis (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) property	Dec. 31, 2020 USD ($) property	Dec. 31, 2019 USD ($) property
Provisions for Impairment
Provisions for impairment	$ 38,967	$ 147,232	$ 40,186
Number of impaired properties held for sale | property	16	1	0
Number of impaired properties held for investment | property	11	34	3
Number of impaired properties sold | property	76	64	48
Value of properties	$ 25,155,178	$ 14,696,712
COVID-19 impacted properties
Provisions for Impairment
Provisions for impairment		$ 105,000
Number of impaired properties held for investment | property		38
COVID-19 impacted properties | Theaters
Provisions for Impairment
Provisions for impairment		$ 83,800
Number of impaired properties held for investment | property		13
Value of properties		$ 39,600	$ 123,400
Other properties
Provisions for Impairment
Provisions for impairment		$ 42,200