Condensed Combined Balance Sheets (Unaudited) for LLCs/LPs Accounted Under Equity Method (Detail) - USD ($) $ in Thousands		Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Schedule Of Equity Method Investments [Line Items]
Total Assets		$ 584,330		$ 596,369
Equity		181,639	$ 190,701	200,934	$ 210,308	$ 216,635	$ 229,101
Total Liabilities and Equity		584,330		596,369
Investments in and advances to LLCs before amounts included in accrued expenses and other liabilities		14,260		9,102
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule Of Equity Method Investments [Line Items]
Net property, including construction in progress		27,391		28,488
Other assets	[1]	5,132		4,667
Total Assets		32,523		33,155
Other liabilities	[1]	2,628		2,074
Mortgage notes payable, non-recourse to us		15,165		21,206
Equity		14,730		9,875
Total Liabilities and Equity		32,523		33,155
Investments in and advances to LLCs before amounts included in accrued expenses and other liabilities		14,260		9,102
Amounts included in accrued expenses and other liabilities		(1,760)		(1,729)
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule Of Equity Method Investments [Line Items]
Our share of equity in LLCs, net		$ 12,500		$ 7,373

[1] Other assets and other liabilities as of September 30, 2024 and December 31, 2023 include approximately $649,000 and $651,000, respectively, of right-of-use land assets and right-of-use land liabilities related to ground leases whereby the LLC/LP is the lessee, with third party lessors, including subsidiaries of UHS.