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Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2023 USD ($) Facility | Dec. 31, 2022 USD ($) Facility | Dec. 31, 2021 USD ($)
Related Party Transaction [Line Items] |  |  |  |
Net revenues | $ 14,281,976,000 |  | $ 13,399,370,000 | $ 12,642,117,000
Lessee, operating lease, existence of option to extend [true false] | true |  |  |
Lease and rental | $ 141,026,000 |  | 131,626,000 | 118,863,000
Acute Care Hospital Services |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Net revenues | $ 8,081,402,000 | [1] | $ 7,646,749,000 | $ 7,108,254,000
Relationship with Universal Health Realty Income Trust |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Percentage of advisory fee on average invested real estate assets | 0.70% |  | 0.70% | 0.70%
Pre-tax share of income from the Trust | $ 874,000 |  | $ 1,200,000 | $ 6,200,000
Dividends received from the Trust | 2,300,000 |  | 2,200,000 | 2,200,000
Proceeds from transactions including asset purchase and sale transaction |  |  |  | 5,000,000.0
Carrying value of investment in Trust | 7,000,000.0 |  | 8,400,000 |
Market value of investment in Trust | 34,100,000 |  | 37,600,000 |
Lease and rental | $ 20,600,000 |  | 20,200,000 |
Relationship with Universal Health Realty Income Trust | Other Related Party Transactions |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Trust outstanding shares held, percentage | 5.70% |  |  |
Relationship with Universal Health Realty Income Trust | Behavioral Health Care Facility |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Lease and rental | $ 2,700,000 |  | 2,600,000 | $ 2,500,000
Relationship with Universal Health Realty Income Trust | Aiken Regional Medical Center |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Lease rent receivable | 4,000,000 |  | 3,900,000 |
Relationship with Universal Health Realty Income Trust | Canyon Creek Behavioral Health |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Lease rent receivable | $ 1,800,000 |  | $ 1,800,000 |
Relationship with Universal Health Realty Income Trust | Aiken Regional Medical Center and Canyon Creek Behavioral Health |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Lease initial terms |  |  |  | 5 years
Initial lease term on property |  |  |  | 12 years
Lease expiration date |  |  |  | Dec. 31, 2033
Lessee, operating lease, existence of option to extend [true false] |  |  |  | true
Real estate leases option to extend lease term |  |  |  | 7 years
Number of facilities leased | Facility | 2 |  | 2 |
Lease rent receivable | $ 5,800,000 |  | $ 5,700,000 |
Relationship with Universal Health Realty Income Trust | Advisory Fee |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Net revenues | $ 5,300,000 |  | $ 5,100,000 | $ 4,400,000
[1] | Included in our 2022 acute care hospital services operating segment income (loss) before allocation of corporate overhead and income taxes is a pre-tax $58 million provision for asset impairment charge to reduce the carrying value of real property assets.

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