Quarterly report pursuant to Section 13 or 15(d)

Income Taxes

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Income Taxes
6 Months Ended
Jun. 30, 2022
Income Tax Disclosure [Abstract]  
Income Taxes
15. Income Taxes:
The effective income tax rate for the three months ended June 30, 2022 was 27.5% compared to (4,371.6)% for the three months ended June 30, 2021. The effective income tax rate for the six months ended June 30, 2022 was 32.4% compared to (30.9)% for the six months ended June 30, 2021. The Company’s effective income tax rate has fluctuated primarily due to changes in income mix, discrete impacts related to intraperiod allocation revaluation of deferred tax assets and liabilities as a result of the divestiture of the Performance Chemicals business, tax rate changes and changes in foreign exchange gains and losses, which create permanent differences in certain jurisdictions.
The difference between the U.S. federal statutory income tax rate and the Company’s effective income tax rate for the six months ended June 30, 2022 was mainly due to state and local taxes, a discrete shortfall tax expense related to stock compensation, and a discrete tax expense associated with the Employee Retention Credit.
The difference between the U.S. federal statutory income tax rate and the Company’s effective income tax rate for the six months ended June 30, 2021 was mainly due to state and local taxes, discrete tax impacts related to intra-period allocation revaluation of deferred tax assets and liabilities as a result of the Performance Chemicals divestiture, tax rate changes, and the tax effect of permanent differences related to foreign currency exchange gain or loss.