Acquisitions - Summary of Unaudited Proforma Results of Operation (Detail) - Avast PLC Family Safety Mobile Software Business [Member] - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Revenues	$ 67,654	$ 87,908
Net (loss) income	$ (16,304)	$ 4,046
Earnings per share:
Basic	$ (0.30)	$ 0.08
Diluted	$ (0.30)	$ 0.08

Pro forma basic earnings per share or earnings per unit, which is commonly presented in initial public offerings based on the terms of the offering.

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