Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information 1 (Detail) - Relationship with Universal Health Realty Income Trust - Bed	3 Months Ended	9 Months Ended
Mar. 31, 2023	Sep. 30, 2025
Related Party Transaction [Line Items]
Number of beds available in acute care hospital	170
Behavioral Health Care Facility
Related Party Transaction [Line Items]
Number of bed available in behavioral health care facility		100

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details