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Amount of damages awarded to the plaintiff in the legal matter.

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Annual coverage limit provided by the insurance arrangement for malpractice claims.

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Maximum coverage per malpractice claim provided by the insurance arrangement.

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Amount per policy of risk ceded to reinsurer in excess of risk undertaken originally by insurer that is not ceded to reinsurer.

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Commitments and Contingencies - Additional Information (Detail) - USD ($)		1 Months Ended	6 Months Ended
	Jul. 07, 2023	Aug. 31, 2022	Jun. 30, 2023
Subsequent Event [Member] \| Inman Litigation [Member] \| Compensatory Damages [Member]
Loss Contingencies [Line Items]
Awarded plaintiff damages amount	$ 80,000,000
Subsequent Event [Member] \| Inman Litigation [Member] \| Punitive Damages [Member]
Loss Contingencies [Line Items]
Awarded plaintiff damages amount	$ 405,000,000
Maximum [Member]
Loss Contingencies [Line Items]
Maximum coverage limit per claim		$ 10,000,000.0	$ 5,000,000.0
Reinsurance policy aggregate policy limit			75,000,000.0
Minimum [Member]
Loss Contingencies [Line Items]
Maximum professional liability for certain other claims thereafter			10,000,000.0
Reinsurance policy aggregate policy limit			$ 70,000,000.0