Real Estate and Other Activities - Summary of Investments in Unconsolidated Real Estate Joint Ventures by Operator (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated real estate joint ventures	$ 1,399,777	$ 1,156,397
Swiss Medical Network [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	70.00%
Investments in unconsolidated real estate joint ventures	$ 611,347	483,770
MEDIAN [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	50.00%
Investments in unconsolidated real estate joint ventures	$ 486,695	431,964
Common Spirit [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	25.00%
Investments in unconsolidated real estate joint ventures	$ 162,278	113,202
Policlinico di Monza [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	50.00%
Investments in unconsolidated real estate joint ventures	$ 86,091	77,592
HM Hospital [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	45.00%
Investments in unconsolidated real estate joint ventures	$ 53,366	$ 49,869