Number of customer contracts.

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- Definition

Date when the business acquisition agreement was executed, in YYYY-MM-DD format.

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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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No definition available.

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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.

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- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Acquisitions - Additional Information (Detail)			9 Months Ended	12 Months Ended
Acquisitions - Additional Information (Detail)	Apr. 16, 2021 USD ($)	Feb. 12, 2020 Customer	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Business Acquisition [Line Items]
Revenues				$ 58,422,000	$ 51,300,000
Cost of revenues				$ 12,698,000	$ 5,190,000
Avast PLC Family Safety Mobile Software Business [Member]
Business Acquisition [Line Items]
Date of acquisition agreement	Apr. 16, 2021
Revenues			$ 19,700,000
Cost of revenues			$ 6,200,000
Avast PLC Family Safety Mobile Software Business [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Earn-out provision for additional future payments	$ 14,000,000.0
Avast PLC Family Safety Mobile Software Business [Member] \| Other Accrued Liabilities [Member]
Business Acquisition [Line Items]
Contingent consideration	13,700,000
Avast PLC Family Safety Mobile Software Business [Member] \| Operating Expense [Member]
Business Acquisition [Line Items]
Earn-out provision for additional future payments	12,900,000
Avast PLC Family Safety Mobile Software Business [Member] \| Purchase Price Allocation [Member]
Business Acquisition [Line Items]
Earn-out provision for additional future payments	$ 1,100,000
Circle [Member]
Business Acquisition [Line Items]
Number of customer contracts \| Customer		2