Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information 4 (Detail) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2013	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
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
Trust Owned by CEO | Chief Executive Officer
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
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				45,000,000			$ 50,000,000
Other (Income) Expense, Net | Premier, Inc.
Related Party Transaction [Line Items]
Dividend	$ 470,000	$ 470,000		$ 1,400,000	$ 1,400,000
Scenario Forecast | Chief Executive Officer
Related Party Transaction [Line Items]
Payments to acquire life insurance policies, net						$ 1,000,000