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Income Taxes
9 Months Ended
Sep. 30, 2026
Income Tax Disclosure [Abstract]  
Income Taxes
10. Income Taxes

The Company’s effective tax rate may vary from the U.S. federal statutory tax rate due to the valuation allowance placed on deferred tax assets, change in the mix of earnings in various state jurisdictions with different statutory rates, benefits related to tax credits, and the tax impact of non-deductible expenses, stock award activities and other permanent differences between income before income taxes and taxable income. The Company’s effective tax rate for the three and nine months ended September 30, 2026 was 0.8% and 0.1%, respectively, compared with 6.6% and 2.2%, respectively, for the corresponding periods in 2025. The variances in each period from the U.S. federal statutory tax rate of 21.0% was primarily due to the valuation allowance established on federal and state attributes and the tax impact of stock award activities that was partially offset with the benefit related to research and development tax credits.

The Company considered the realizability of the deferred tax assets and recorded a valuation allowance as necessary for the amount of deferred tax assets which are not more likely than not to be realized as of September 30, 2026.