Fair Value Measurements - Items Measured at Fair Value on a Non-Recurring Basis (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Provisions for impairment
Less: total provisions for impairment	$ (87,082)	$ (25,860)	$ (38,967)
Provision for credit losses	4,900
Properties impaired 2022
Provisions for impairment
Carrying value prior to impairment	194,500	140,900	169,200
Less: total provisions for impairment	(82,200)	(25,900)	(39,000)
Carrying value after impairment	$ 112,300	$ 115,000	$ 130,200