Schedule of Effective Income Tax Rate Reconciliation (Detail)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense at federal statutory rate	21.00%	21.00%	21.00%
State taxes, net of federal tax effect	9.10%	18.00%	(1.70%)
Foreign earnings taxed at different rates	0.40%	21.70%	(6.10%)
Book tax difference in amortization of intangible property	(0.00%)	(0.00%)	(4.60%)
Withholding tax	(0.10%)	(12.50%)	3.10%
Foreign tax credit	0.40%	3.80%	(3.00%)
Other international components	0.00%	(3.50%)	0.20%
Change in valuation allowance	0.00%	2.70%	1.60%
Deferred tax adjustments and rate changes	0.00%	(3.40%)	1.00%
Meals and entertainment	0.00%	(1.30%)	1.30%
Non-deductible officers compensation	(1.00%)	(12.50%)	1.40%
Subpart F income	(0.10%)	(2.00%)	3.20%
Research and development tax credit	0.80%	19.90%	(9.30%)
Share-based compensation	4.00%	11.80%	1.80%
Global Intangible Low Income, net of foreign tax credit	(0.50%)	(1.10%)	0.90%
Foreign-derived intangible income	(0.00%)	3.10%	(1.90%)
Other permanent differences	0.00%	(3.40%)	1.30%
Total	34.00%	62.30%	10.20%

Book tax difference in amortization of intangible property.

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Effective income tax rate reconciliation adjustment to deferred tax and rate changes.

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Effective income tax rate reconciliation foreign-derived intangible income percent

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Effective income tax rate reconciliation global intangible low taxed income percent.

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Effective income tax rate reconciliation withholding tax.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference, between reported income tax expense (benefit) and the expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, that is attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority interest income (expense), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, change in enacted tax rate, prior year income taxes, change in deferred tax asset valuation allowance, and other adjustments.

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Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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