Income Taxes - Reconciliation Of Federal Statutory Rate To Effective Income Tax Rate (Detail)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%	21.00%
Increases (decreases) in the rate resulting from:
Net capital loss on Divestiture	(0.010)	(0.248)	0
Tax reform	(1.20%)	(11.40%)	0.00%
Unrecognized tax benefits	0.10%	5.00%	(5.00%)
State income taxes, net of federal income tax impact	3.10%	3.20%	6.60%
Research and development credit	(0.80%)	(2.90%)	9.80%
Foreign income taxes	0.30%	0.70%	(3.70%)
Valuation allowance	1.10%	27.10%	(1.40%)
Restricted stock vestings	(2.10%)	1.00%	(6.70%)
Nondeductible compensation	1.00%	0.00%	0.00%
Foreign derived intangible income (FDII)	(3.20%)	0.00%	0.00%
Other	1.60%	1.00%	0.80%
Effective income tax rate	19.90%	19.90%	21.40%

Effective Income Tax Rate Reconciliation, Capital Loss On Divestiture, Percent

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Effective Income Tax Rate Reconciliation, Change Due To Coronavirus Aid, Relief, and Economic Security (CARES) Act, Percent

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Effective Income Tax Rate Reconciliation, Foreign Derived Intangible Income

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Effective Income Tax Rate Reconciliation, Increases (Decrease) [Abstract]

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Effective Income Tax Rate Reconciliation, Share-based Compensation, Restricted Stock Vesting, Percent

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Effective Income Tax Rate Reconciliation, Unrecognized Tax Expense (Benefit), Percent

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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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-Publisher FASB
-Name Accounting Standards Codification
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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 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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