Fair Value Measurements - Items Measured at Fair Value on a Non-Recurring Basis (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024 USD ($) property	Sep. 30, 2023 USD ($) property	Sep. 30, 2024 USD ($) property	Sep. 30, 2023 USD ($) property
Provisions for impairment
Less: total provisions for impairment of real estate | $	$ (96,920)	$ (16,808)	$ (282,867)	$ (59,801)
Number of properties:
Classified as held for sale	11	0	13	0
Classified as held for investment	26	9	93	18
Sold	24	23	59	66
Properties impaired 2022
Provisions for impairment
Carrying value prior to impairment | $	$ 133,800	$ 37,500	$ 488,700	$ 161,400
Less: total provisions for impairment of real estate | $	(33,100)	(16,800)	(208,600)	(59,800)
Carrying value after impairment | $	$ 100,700	$ 20,700	$ 280,100	$ 101,600
Number of properties:
Number Of properties leased			23
Properties impaired 2022 | Office properties
Number of properties:
Number of properties acquired			2