Fair Value Measurements - Items Measured at Fair Value on a Non-Recurring Basis (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) property	Mar. 31, 2023 USD ($)
Provisions for impairment
Less: total provisions for impairment	$ (89,489)	$ (13,178)
Properties impaired 2022
Provisions for impairment
Carrying value prior to impairment	191,100	35,600
Less: total provisions for impairment	(88,200)	(13,200)
Carrying value after impairment	102,900	$ 22,400
Provision for credit losses	$ 1,300
Properties impaired 2022 | Office properties
Provisions for impairment
Number of properties acquired | property	2