Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information (Detail)	1 Months Ended	3 Months Ended				6 Months Ended		9 Months Ended	12 Months Ended
	Jan. 31, 2022 USD ($) Bed SquareFoot	Jun. 30, 2022 USD ($) Facility Hospital	Jun. 30, 2021 USD ($) Hospital	Sep. 30, 2020 USD ($)	Dec. 31, 2013	Jun. 30, 2022 USD ($) Facility Hospital Bed	Jun. 30, 2021 USD ($) Hospital	Sep. 30, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction [Line Items]
Net revenues		$ 3,323,407,000	$ 3,197,880,000			$ 6,616,363,000	$ 6,210,867,000
Lease and rental expense		$ 31,773,000	29,149,000			$ 63,811,000	$ 60,473,000
Number of hospital facilities | Hospital						5
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 | Chief Executive Officer
Related Party Transaction [Line Items]
Estimated death benefit proceeds						$ 37,000,000
Relationship with Universal Health Realty Income Trust
Related Party Transaction [Line Items]
Trust outstanding shares held, percentage		5.70%				5.70%
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		$ 307,000	394,000			$ 607,000	$ 701,000
Dividends received from the Trust		559,000	551,000			1,100,000	1,100,000
Carrying value of investment in Trust		8,900,000				8,900,000				$ 9,400,000
Market value of investment in Trust		41,900,000				41,900,000				46,800,000
Financial liability included in debt		82,500,000				82,500,000
Lease and rental expense		$ 5,000,000	$ 4,000,000			$ 10,000,000	$ 8,000,000
Number of hospital facilities | Hospital		4	3			4	3
Notice period on renewal of lease						90 days
Period of rights of refusal to leased facilities						180 days
Number of free-standing emergency departments to be acquired | Facility		2				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%				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%				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		$ 657,000	$ 622,000			$ 1,300,000	$ 1,200,000
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]
Lease rent receivable						$ 5,700,000
Number of facilities leased | Facility						2
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
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 | 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 | Advisory Fee
Related Party Transaction [Line Items]
Net revenues		1,300,000	1,100,000	$ 2,500,000				$ 2,200,000
Premier, Inc. | Other (Income) Expense, Net
Related Party Transaction [Line Items]
Dividend		$ 450,000	$ 400,000			900,000	$ 800,000
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						$ 80,000,000				$ 92,000,000