Fair Value of Financial Instruments - Summary of Fair Value Information of Financial Instruments (Parenthetical) (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($) Health_Center	Dec. 31, 2023 USD ($)
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Mortgage loans	$ 399,150	$ 309,315
Investments in unconsolidated real estate joint ventures	1,143,231	1,474,455
Investments in unconsolidated operating entities	635,206	1,778,640
Loans [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments in unconsolidated operating entities	40,100	526,900
Other loans	503,200	289,600
Shareholder Loan [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Mortgage loans	261,900	162,400
Investments in unconsolidated real estate joint ventures	$ 326,700	$ 323,800
Fair Value, Recurring [Member] | Colombia [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Number of facilities acquired | Health_Center	3
Fair Value, Recurring [Member] | Acquisition Loans [Member] | Colombia [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Number of facilities acquired | Health_Center	3