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Income Taxes - Reconciliation of Federal Statutory Income Tax Rate to Effective Tax Rate (Detail)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Income Tax Disclosure [Abstract]      
Federal statutory rate 21.00% 21.00% 21.00%
State income taxes, net of federal benefit 1.70% 1.70% 2.00%
Research and development tax credit (4.00%) (1.80%) (3.40%)
Stock based compensation (0.10%) (0.30%) (0.50%)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent 1.20% 0.90% 0.90%
Effective Income Tax Rate Reconciliation, FDII, Percent (0.50%) (1.30%) 0.00%
Other permanent differences (0.30%) 0.50% 1.00%
Effective income tax rate for continuing operations 19.00% 20.70% 21.00%