Fair Value of Financial Instruments - Summary of Fair Value Information of Financial Instruments (Parenthetical) (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($) Health_Center	Dec. 31, 2025 USD ($)
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Mortgage loans	$ 124,479	$ 123,651
Investments in unconsolidated real estate joint ventures	1,390,385	1,399,777
Investments in unconsolidated operating entities	320,928	322,179
Loans [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments in unconsolidated operating entities	45,100	45,400
Other loans	233,900	182,400
Shareholder Loan [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Mortgage loans	7,500	7,500
Investments in unconsolidated real estate joint ventures	$ 383,000	$ 388,900
Fair Value, Recurring [Member] | Colombia [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Number of facilities acquired | Health_Center	3