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Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information 3 (Detail) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 31, 2024 USD ($) | Sep. 30, 2023 USD ($) SquareFoot | Mar. 31, 2023 SquareFoot Bed | Dec. 31, 2024 USD ($) Facility | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |
Lease and rental expense |  |  |  | $ 146,433,000 | $ 141,026,000 | $ 131,626,000
Relationship with Universal Health Realty Income Trust |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Number of free-standing emergency departments to be acquired | Facility |  |  |  | 2 |  |
Lease and rental expense |  |  |  | $ 21,200,000 | $ 20,600,000 |
Number of square feet to be acquired | SquareFoot |  | 79,500 |  |  |  |
Percentage of master lease rentable square feet |  | 100.00% |  |  |  |
Number of beds available in acute care hospital | Bed |  |  | 170 |  |  |
Number of square feet to be constructed | SquareFoot |  |  | 86,000 |  |  |
Two Free-standing Emergency Departments |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Renewal options term at fair market lease rates | 5 years |  |  |  |  |
Lease expiration date | Jan. 31, 2025 |  |  |  |  |
Lease and rental expense | $ 1,070,000.00 |  |  |  |  |
Percentage of annual rental increase on cumulative and compound basis | 2.00% |  |  |  |  |
Two Free-standing Emergency Departments | First Three Renewal Options |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Percentage of annual rental increase on cumulative and compound basis |  |  |  | 2.00% |  |
Minimum | Relationship with Universal Health Realty Income Trust |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Lease and rental expense |  | $ 624,000 |  |  |  |
Minimum | Two Free-standing Emergency Departments |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Operating leases additional renewal options at fair market value lease rates expiration date | Feb. 01, 2025 |  |  |  |  |
Minimum | Two Free-standing Emergency Departments | First Three Renewal Options |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Operating leases additional renewal options at fair market value lease rates expiration year |  |  |  | 2030 |  |
Minimum | Two Free-standing Emergency Departments | Remaining Two Renewal Options |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Operating leases additional renewal options at fair market value lease rates expiration year |  |  |  | 2045 |  |
Maximum | Relationship with Universal Health Realty Income Trust |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Percentage of master lease rentable square feet |  |  | 68.00% |  |  |
Maximum | Two Free-standing Emergency Departments |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Operating leases additional renewal options at fair market value lease rates expiration date | Jan. 31, 2030 |  |  |  |  |
Maximum | Two Free-standing Emergency Departments | First Three Renewal Options |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Operating leases additional renewal options at fair market value lease rates expiration year |  |  |  | 2044 |  |
Maximum | Two Free-standing Emergency Departments | Remaining Two Renewal Options |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Operating leases additional renewal options at fair market value lease rates expiration year |  |  |  | 2054 |  |
Limited Liability Companies | Minimum | Relationship with Universal Health Realty Income Trust |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Non-controlling ownership interests |  |  |  | 95.00% |  |
Limited Liability Companies | Maximum | Relationship with Universal Health Realty Income Trust |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Non-controlling ownership interests |  |  |  | 100.00% |  |

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