Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Description of the Business (Detail) $ in Thousands		12 Months Ended
Description of the Business (Detail) $ in Thousands	Oct. 31, 2022 USD ($)	Dec. 31, 2022 USD ($) segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on disposal		$ 472,237	$ 0	$ 0
Number of segments \| segment		1
Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations \| Tax Software Business Member
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash received from sale of business	$ 720,000
Discontinued Operations, Disposed of by Sale \| Former Tax Software Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash received from sale of business	$ 720,000
Pre-tax gain on disposal		$ 472,237	$ 0	$ 0