Fair Value of Financial Instruments - Summary of Fair Value Information of Financial Instruments (Parenthetical) (Detail) $ in Thousands	6 Months Ended
Jun. 30, 2026 USD ($) Health_Center	Jun. 30, 2025 Health_Center	Dec. 31, 2025 USD ($)
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Mortgage loans	$ 131,157		$ 123,651
Investments in unconsolidated real estate joint ventures	1,371,657		1,399,777
Investments in unconsolidated operating entities	313,703		322,179
Loans [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments in unconsolidated operating entities	44,600		45,400
Other loans	282,100		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	$ 379,100		$ 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	3

Financial instruments measured at fair value on recurring basis.

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Investments in other loans.

+ References

No definition available.

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- Definition

Investments In Unconsolidated Operating Entities

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- Definition

The balance represents the amount of loans that are secured by real estate mortgages, offset by the reserve to cover probable credit losses on the loan portfolio.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 80
-Name Accounting Standards Codification
-Section 55
-Paragraph 14
-Publisher FASB
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- Definition

Number of businesses acquired in business combination.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 805
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-Section 50
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- Definition

The carrying amount of investments in unconsolidated real estate and other joint ventures not separately presented. This includes direct and indirect investments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 210
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