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Real Estate and Other Activities - 2023 Activity - Additional Information (Detail) $ in Thousands, £ in Millions							1 Months Ended	3 Months Ended					12 Months Ended
	May 23, 2023 USD ($)	Apr. 14, 2023 USD ($) Facility	Apr. 14, 2023 GBP (£) Facility	Feb. 07, 2023 USD ($) Facility	Jul. 29, 2022 USD ($)	Apr. 25, 2022 USD ($) Facility	Aug. 31, 2019 USD ($) Hospital	Mar. 31, 2024 USD ($)	Jun. 30, 2023 USD ($) Facility	Jun. 30, 2023 GBP (£) Facility	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) Facility	Jun. 30, 2022 USD ($)
Business Acquisition [Line Items]
Net impairment charge								$ 225,000			$ 79,000		$ 180,000
Additional mortgage loan												$ 1,332,962	105,618	$ 235,187	$ 1,332,962
PHP Holdings [Member]
Business Acquisition [Line Items]
Capital restructuring costs													654,000
Equity investment													68,000
Convertible loan													$ 586,000
Prospect [Member]
Business Acquisition [Line Items]
Purchase price of acquisition							$ 1,500,000
Term loan							$ 112,900
Net impairment charge												280,000
Additional mortgage loan																$ 100,000
Investment, Type [Extensible Enumeration]													Mortgage Loans [Member]
Pay down of debt instruments	$ 375,000
Reconstitution of asset	1,700,000
Prospect [Member] \| Maximum [Member]
Business Acquisition [Line Items]
First lien secured loan	75,000
Prospect [Member] \| Acute Care Campus [Member]
Business Acquisition [Line Items]
Number of facilities acquired \| Hospital							14
Prospect [Member] \| Mortgage Loans [Member]
Business Acquisition [Line Items]
First lien secured loan	150,000
Prospect [Member] \| PHP Holdings [Member]
Business Acquisition [Line Items]
Revenue for rent and interest														$ 82,000
Unpaid rent and interest	112,900
Convertible loan											$ 50,000
Prospect [Member] \| PHP Holdings [Member] \| Mortgage Loans [Member]
Business Acquisition [Line Items]
Unpaid rent and interest	$ 151,000												$ 151,000
Prospect [Member] \| Pennsylvania [Member]
Business Acquisition [Line Items]
Carrying value of lease requiring residual value guarantee												170,000			170,000
Unbilled rent accruals													$ 112,000
Prospect [Member] \| Pennsylvania [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Carrying value of lease requiring residual value guarantee												$ 250,000			$ 250,000
General Acute Care Hospitals [Member]
Business Acquisition [Line Items]
Purchase price of acquisition					$ 26,000	$ 80,000
Number of facilities acquired \| Facility				8		2									6
Lease extension expiration term				5 years
Lease extension expiration year				2041
Behavioral Health Hospitals [Member]
Business Acquisition [Line Items]
Number of facilities acquired \| Facility		5	5						3	3
Payment for acquisition		$ 58,000	£ 44						$ 77,000	£ 70
Number of leased facilities \| Facility		5	5
Springstone Health Opco, LLC [Member]
Business Acquisition [Line Items]
Purchase price of acquisition				$ 250,000
Additional mortgage loan				$ 205,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable								$ 12,000