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Income Taxes
6 Months Ended
Jun. 30, 2021
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
The effective tax rates on Net income were 34.1% and 24.8% for the three and six months ended June 30, 2021. The effective tax rates on Net income were 17.1% and 18.6% for the three and six months ended June 30, 2020. Refer to Note 1 “Basis of Presentation” for a discussion of certain amounts in the prior year's Condensed Consolidated Financial Statements which have been reclassified to conform to the current year’s presentation.
For the three and six months ended June 30, 2021, the tax rate was primarily driven by the geographical distribution of income and certain discrete items, primarily the unfavorable impact of the U.K. tax rate increase offset by the favorable impact of share-based payments.

The U.K. enacted legislation on June 10, 2021 which increases the corporate income tax rate from 19% to 25% with effect from April 1, 2023. As a result, the Company remeasured its U.K. deferred tax assets and liabilities based on the tax rate in effect when the deferred tax assets and liabilities are expected to be realized.
For the three and six months ended June 30, 2020, the tax rate was primarily driven by the geographical distribution of income and certain favorable discrete items, including the impact of share-based payments and the release of a valuation allowance due to a change in judgement about realizability of deferred tax assets in the U.K.