Estimated payments to acquire life insurance policies.

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- Definition

Estimated proceeds from life insurance policies.

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Share-based compensation arrangement by share-based payment award, award vesting period end year.

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Share-based compensation arrangement by share-based payment award, award vesting period start year.

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- Definition

Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of dividend income on nonoperating securities.

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Amount of cash outflow for payment of premium on corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Relationship with Universal Health Realty Income Trust and Other Related Party Transactions - Additional Information 4 (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Chief Executive Officer
Related Party Transaction [Line Items]
Estimated payments to acquire life insurance policies		$ 28.0
Payments to acquire life insurance policies, net		1.0	$ 1.0	$ 1.0
Trust Owned by CEO \| Chief Executive Officer
Related Party Transaction [Line Items]
Estimated payments to acquire life insurance policies		9.0
Minimum \| Chief Executive Officer
Related Party Transaction [Line Items]
Estimated death benefit proceeds		37.0
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		47.0	50.0
Other (Income) Expense, Net \| Premier, Inc.
Related Party Transaction [Line Items]
Unrealized gain (loss)		(3.0)	(28.0)	(14.0)
Dividend		$ 1.9	$ 1.9	$ 1.8