Commitments and Contingencies - Additional Information (Detail) - USD ($)					1 Months Ended	9 Months Ended
	Oct. 01, 2024	Sep. 23, 2024	Jan. 19, 2024	Jul. 07, 2023	Aug. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Loss Contingencies [Line Items]
Aggregate amount on settlement agreements		$ 19,900,000	$ 400,000,000
Anticipated financial impact value						$ 19,900,000	$ 19,900,000
Subsequent Event [Member]
Loss Contingencies [Line Items]
Aggregate amount on settlement agreements	$ 16,700,000
Anticipated financial impact value	$ 3,200,000
Inman Litigation [Member] | Compensatory Damages [Member]
Loss Contingencies [Line Items]
Awarded plaintiff damages amount				$ 80,000,000
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					$ 7,000,000	10,000,000
Maximum professional liability for certain other claims thereafter						25,000,000
Reinsurance policy aggregate policy limit					78,000,000	80,000,000
Minimum [Member]
Loss Contingencies [Line Items]
Maximum professional liability for certain other claims thereafter					10,000,000	15,000,000
Reinsurance policy aggregate policy limit					$ 75,000,000	$ 75,000,000