Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Net revenues	$ 3,907,604,000	$ 3,548,138,000	$ 7,751,186,000	$ 7,015,656,000
Acute Care Hospital Services
Related Party Transaction [Line Items]
Net revenues	2,173,409,000	2,003,079,000	$ 4,358,490,000	$ 3,976,611,000
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%	0.70%	0.70%
Pre-tax share of income from the Trust	314,000	250,000	$ 614,000	$ 550,000
Dividends received from the Trust	575,000	567,000	1,100,000	1,100,000
Carrying value of investment in Trust	6,400,000		6,400,000		$ 7,000,000
Market value of investment in Trust	$ 30,800,000		$ 30,800,000		$ 34,100,000
Relationship with Universal Health Realty Income Trust | Other Related Party Transactions
Related Party Transaction [Line Items]
Trust outstanding shares held, percentage	5.70%		5.70%
Relationship with Universal Health Realty Income Trust | Advisory Fee
Related Party Transaction [Line Items]
Net revenues	$ 1,400,000	$ 1,300,000	$ 2,700,000	$ 2,600,000