Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information (Detail)		1 Months Ended	3 Months Ended			12 Months Ended
	Jan. 01, 2023	Jan. 31, 2022 USD ($) SquareFoot Bed	Mar. 31, 2023 USD ($) Hospital Bed Facility	Mar. 31, 2022 USD ($) Hospital	Dec. 31, 2013	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) Facility	Dec. 31, 2021 USD ($) Bed	Dec. 31, 2020
Related Party Transaction [Line Items]
Net revenues			$ 3,467,518,000	$ 3,292,956,000
Lease and rental expense			$ 34,922,000	32,038,000
Number of hospital facilities | Hospital			5
Lessee Operating Lease Existence Of Option To Extend			true
Chief Executive Officer
Related Party Transaction [Line Items]
Estimated payments to acquire life insurance policies			$ 28,000,000
Payments to acquire life insurance policies, net							$ 1,000,000.0
Chief Executive Officer | Scenario Forecast
Related Party Transaction [Line Items]
Payments to acquire life insurance policies, net						$ 1,000,000.0
Chief Executive Officer | Trust Owned by CEO
Related Party Transaction [Line Items]
Estimated payments to acquire life insurance policies			$ 9,000,000
Minimum
Related Party Transaction [Line Items]
Real estate leases option to extend lease term			5 years
Lease initial terms			5 years
Minimum | Chief Executive Officer
Related Party Transaction [Line Items]
Estimated death benefit proceeds			$ 37,000,000
Maximum
Related Party Transaction [Line Items]
Real estate leases option to extend lease term			10 years
Lease initial terms			10 years
Acute Care Hospital Services
Related Party Transaction [Line Items]
Net revenues			$ 1,973,532,000	$ 1,912,316,000
Canyon Creek Behavioral Health
Related Party Transaction [Line Items]
Percentage of annual rental increase on cumulative and compound basis	2.25%
Asset Purchase and Sale Agreement | Subsidiaries
Related Party Transaction [Line Items]
Gain on sale of real estate assets								$ 4,000,000.0
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%	0.70%	0.70%
Pre-tax share of income from the Trust			$ 300,000	$ 300,000
Dividends received from the Trust			563,000	555,000
Carrying value of investment in Trust			8,100,000	8,400,000
Market value of investment in Trust			37,900,000				$ 37,600,000
Financial liability included in debt			80,000,000.0				80,900,000
Lease and rental expense			$ 5,000,000	$ 5,000,000
Number of hospital facilities | Hospital			4	4
Notice period on renewal of lease			90 days
Number of free-standing emergency departments to be acquired | Facility			2
Number of square feet to be constructed | SquareFoot		86,000
Number of beds available in acute care hospital | Bed		170
Percentage of master lease rentable square feet		68.00%
Relationship with Universal Health Realty Income Trust | Minimum
Related Party Transaction [Line Items]
Lease and rental expense		$ 1,300,000
Relationship with Universal Health Realty Income Trust | Minimum | Limited Liability Companies
Related Party Transaction [Line Items]
Non-controlling ownership interests by subsidiaries			95.00%
Relationship with Universal Health Realty Income Trust | Maximum | Limited Liability Companies
Related Party Transaction [Line Items]
Non-controlling ownership interests by subsidiaries			100.00%
Relationship with Universal Health Realty Income Trust | Aiken, South Carolina | Behavioral Health Care Facility
Related Party Transaction [Line Items]
Lease and rental expense			$ 2,700,000	$ 2,600,000
Notice period on renewal of lease			270 days
Period of rights of refusal to leased facilities			30 days
Number of bed available in behavioral health care facility | Bed			100
Relationship with Universal Health Realty Income Trust | Aiken Regional Medical Center
Related Party Transaction [Line Items]
Lease rent receivable							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
Relationship with Universal Health Realty Income Trust | Aiken Regional Medical Center and Canyon Creek Behavioral Health
Related Party Transaction [Line Items]
Initial lease term on property								12 years
Real estate leases option to extend lease term								7 years
Lease initial terms								5 years
Lease rent receivable							$ 5,700,000
Number of facilities leased | Facility							2
Percentage of annual rental increase on cumulative and compound basis			2.25%
Lease Expiration Date1								Dec. 31, 2033
Lessee Operating Lease Existence Of Option To Extend								true
Relationship with Universal Health Realty Income Trust | Aiken Regional Medical Center and Canyon Creek Behavioral Health | Bonus Rental
Related Party Transaction [Line Items]
Lease revenue			$ 0
Relationship with Universal Health Realty Income Trust | Asset Purchase and Sale Agreement | Subsidiaries
Related Party Transaction [Line Items]
Cash received for sale of real estate asset								$ 4,100,000
Gain on sale of real estate assets								68,400,000
Relationship with Universal Health Realty Income Trust | Asset Purchase and Sale Agreement | Subsidiaries | Inland Valley Campus of Southwest Healthcare System | Wildomar, California
Related Party Transaction [Line Items]
Fair market value of real estate assets received								79,600,000
Relationship with Universal Health Realty Income Trust | Asset Purchase and Sale Agreement | Subsidiaries | Aiken Regional Medical Center | Aiken South Carolina
Related Party Transaction [Line Items]
Fair market value of real estate assets sold								$ 57,700,000
Relationship with Universal Health Realty Income Trust | Asset Purchase and Sale Agreement | Subsidiaries | Aiken Regional Medical Center | Aiken South Carolina | Behavioral Health Care Facility
Related Party Transaction [Line Items]
Number of beds available in acute care hospital | Bed								62
Relationship with Universal Health Realty Income Trust | Asset Purchase and Sale Agreement | Subsidiaries | Aiken Regional Medical Center | Aiken South Carolina | Acute Care Hospital Services
Related Party Transaction [Line Items]
Number of beds available in acute care hospital | Bed								211
Relationship with Universal Health Realty Income Trust | Asset Purchase and Sale Agreement | Subsidiaries | Canyon Creek Behavioral Health | Temple, Texas
Related Party Transaction [Line Items]
Fair market value of real estate assets sold								$ 26,000,000.0
Relationship with Universal Health Realty Income Trust | Asset Purchase and Sale Agreement | Subsidiaries | Aiken Regional Medical Center and Canyon Creek Behavioral Health
Related Party Transaction [Line Items]
Fair market value of real estate assets sold								$ 83,700,000
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 | Advisory Fee
Related Party Transaction [Line Items]
Net revenues			$ 1,300,000	1,200,000
Premier, Inc. | Other (Income) Expense, Net
Related Party Transaction [Line Items]
Dividend			500,000	$ 400,000
Premier, Inc. | Group Purchasing Organization Agreement | Restricted Stock
Related Party Transaction [Line Items]
Shares vesting period					7 years
Shares vesting period start year					2014
Shares vesting period end year					2020
Market value of retained vested shares			$ 72,000,000				$ 78,000,000