Fair Value of Financial Instruments - Summary of Fair Value Information of Financial Instruments (Parenthetical) (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2025 USD ($) Health_Center	Dec. 31, 2024 USD ($)
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Mortgage loans	$ 127,926	$ 119,912
Investments in unconsolidated real estate joint ventures	1,379,600	1,156,397
Investments in unconsolidated operating entities	319,192	439,578
Loans [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments in unconsolidated operating entities	45,200	39,700
Other loans	239,200	104,000
Shareholder Loan [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Mortgage loans	14,000	7,900
Investments in unconsolidated real estate joint ventures	$ 388,200	$ 315,500
Fair Value, Recurring [Member] | Colombia [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Number of facilities acquired | Health_Center	3