Real Estate and Other Activities - Disposals - 2023 Activity Additional Information (Detail) $ in Millions, $ in Millions						3 Months Ended			12 Months Ended
	Apr. 09, 2024 USD ($)	Oct. 10, 2023 AUD ($) Facility	May 18, 2023 AUD ($) Facility	Mar. 29, 2023 Facility	Mar. 08, 2023 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($) Facility	Mar. 31, 2023 AUD ($) Facility	Dec. 31, 2025 USD ($) Facility	Dec. 31, 2024 USD ($) Facility
Debt Instrument [Line Items]
Number of facilities sold | Facility							3	3	9
Proceeds from sale of facilities									$ 121.0
Net impairment charge						$ 225.0	$ 79.0			$ 180.0
Straight-line rent receivables							37.4
Estimated fees to sell the hospitals							8.0
General Acute Care Facility [Member] | Australia [Member]
Debt Instrument [Line Items]
Number of facilities sold | Facility				11
Australia Transaction [Member]
Debt Instrument [Line Items]
Number of facilities sold | Facility			7
Proceeds from sale of facilities		$ 470	$ 730					$ 1,200
Number of remaining facilities sold | Facility		4
Prime Healthcare Services, Inc. Facilities [Member]
Debt Instrument [Line Items]
Number of facilities sold | Facility										6
Proceeds from sale of facilities	$ 250.0
Prime [Member]
Debt Instrument [Line Items]
Proceeds from sale of facilities					$ 100.0
Non-cash impairment charge							$ 11.0