Investments - Additional Information (Detail)	Sep. 30, 2022 USD ($) Security	Dec. 31, 2021 Security
Debt Securities, Available-for-sale [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year \| Security	38	10
Unrealized losses, other-than-temporary impairments \| $	$ 0

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.

No definition available.

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