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Income Taxes
9 Months Ended
Sep. 30, 2021
Income Tax Disclosure [Abstract]  
Income Taxes INCOME TAXES
The overall effective tax rate was 24.8% and 26.0% for the three and nine months ended September 30, 2021, respectively, and 26.7% and 25.8% for the three and nine months ended September 30, 2020, respectively.

The decrease in the quarterly effective tax rate is primarily the result of tax expense on internal restructuring activities incurred during the three months ended September 30, 2020 that did not recur in the three months ended September 30, 2021.

The increase in the year-to-date effective tax rate is primarily the result of withholding tax expense on intercompany dividends incurred during the nine months ended September 30, 2021.
As of September 30, 2021, the liability for income taxes associated with uncertain tax positions was $14.9 million, of which $13.3 million, if recognized, would favorably affect the Company’s effective income tax rate. As of December 31, 2020, the liability for income taxes associated with unrecognized tax benefits was $16.4 million, of which $14.8 million, if recognized, would favorably affect the Company's effective tax rate.
At this time, the Company believes it is reasonably possible that unrecognized tax benefits of approximately $6.6 million may change within the next 12 months due to the expiration of statutory review periods and current examinations.