Discontinued Operations and Loss on Disposal of Businesses - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Non-cash charge against goodwill	$ 20,000	$ 0	$ 20,000	$ 0
Deferred Tax Assets, Goodwill and Intangible Assets	23,300	24,200	23,300
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		10,500
Loss on disposal of businesses		(9,699)	0	0
Income Taxes receivable	$ 7,565	12,614	$ 7,565
Anesthesiology Services Medical Group [Member]
Decrease to the loss on sale, net				$ 3,800
Loss on disposal of businesses		$ 11,000

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Carrying amount as of the balance sheet date of income taxes previously overpaid to tax authorities (such as U.S. Federal, state and local tax authorities) representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Also called income tax refund receivable.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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