Fair Value of Financial Instruments - Additional Information (Detail) SFr in Millions, $ in Millions	3 Months Ended			12 Months Ended
	Sep. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2024 USD ($) Health_Center	Dec. 31, 2023 USD ($)	Dec. 31, 2023 CHF (SFr)	Dec. 31, 2022 USD ($)
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Impairment charge, working capital loans and other secured loans	$ 425.0
Real estate impairment charges		$ 225.0	$ 79.0	$ 180.0
Impairment of assets				$ (12.0)	$ (170.0)		$ (2.9)
Maximum [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Market capitalization percentage							9.00%
Minimum [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Market capitalization percentage							7.50%
Steward's Equity [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Equity impairment charges					$ 90.0
Equity investments percentage				9.90%	9.90%	9.90%
Impairment charge, working capital loans and other secured loans	$ 425.0	$ 625.0
Steward's Equity [Member] | Equity Securities [Member] | International Joint Venture [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Remaining equity investment percentage				90.10%	90.10%	90.10%
Steward and International Joint Venture [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Real estate investments, joint ventures					$ 219.0
Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments measurement input				0.1503
Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments measurement input				0.15
Fair Value, Inputs, Level 3 [Member] | Steward's Equity [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments measurement input				0.16
Springstone Inc. and International Joint Venture [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Unfavorable fair market value adjustment on investment				$ 790.0
Favorable fair market value adjustment on investment					$ 29.0
PHP Holdings [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Discount rate on investment					11.00%
Discount for lack of marketability percentage on Springstone equity investment				14.20%	8.00%
Swiss Medical Network [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Favorable fair market value adjustment on investment | SFr						SFr 20
Colombia [Member] | Springstone Inc. and International Joint Venture [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Unfavorable fair market value adjustment on investment				$ 18.0
Pennsylvania [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Impairment of assets							$ 170.0
Fair Value, Recurring | Colombia [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Number of facilities acquired | Health_Center				3
Fair Value, Recurring | Colombia [Member] | Acquisition Loans [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Number of facilities acquired | Health_Center				3