Real Estate and Other Activities - Prospect - Additional Information) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Business Acquisition [Line Items]
Net impairment charge	$ 500,000	$ 225,000		$ 79,000
Revenues	266,560		$ 337,395		$ 537,876	$ 687,606
Prospect [Member]
Business Acquisition [Line Items]
Rental revenue	18,000				25,000
Interest received on asset-backed loan	3,800				3,800
Net impairment charge					200
Lease real estate assets					1,000,000
Prospect [Member] | PHP Holdings [Member]
Business Acquisition [Line Items]
Unfavourable fair value adjustments	(160,000)				(360,000)
Investments	$ 340,000				$ 340,000