Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information 2 (Detail)	12 Months Ended
	Dec. 31, 2023 USD ($) Hospital Bed	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) Hospital
Related Party Transaction [Line Items]
Lease and rental	$ 141,026,000	$ 131,626,000	$ 118,863,000
Number of hospital facilities | Hospital	5
Relationship with Universal Health Realty Income Trust
Related Party Transaction [Line Items]
Financial liability included in debt	$ 77,500,000	80,900,000
Lease and rental	$ 20,600,000	20,200,000
Number of hospital facilities | Hospital			3
Notice period on renewal of lease	90 days
McAllen Medical Center, Wellington Regional Medical Center and Inland Valley Campus of Southwest Healthcare System | Relationship with Universal Health Realty Income Trust
Related Party Transaction [Line Items]
Lease and rental			$ 17,700,000
Behavioral Health Care Facility | Relationship with Universal Health Realty Income Trust
Related Party Transaction [Line Items]
Lease and rental	$ 2,700,000	2,600,000	$ 2,500,000
Notice period on renewal of lease	270 days
Number of bed available in behavioral health care facility | Bed	100
Period of rights of refusal to leased facilities	30 days
Aiken Regional Medical Center and Canyon Creek Behavioral Health | Relationship with Universal Health Realty Income Trust
Related Party Transaction [Line Items]
Percentage of annual rental increase on cumulative and compound basis	2.25%
Bonus Rental | Aiken Regional Medical Center and Canyon Creek Behavioral Health | Relationship with Universal Health Realty Income Trust
Related Party Transaction [Line Items]
Lease revenue		$ 0