Income Taxes	3 Months Ended
Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense is provided on an interim basis based upon our estimate of the annual effective income tax rate, adjusted each quarter for discrete items. Our effective tax rate was 20.5% and 22.1% for the three months ended March 31, 2021 and 2020, respectively. Impacting our effective tax rate in the first quarter of 2020 was a valuation allowance generated by the financial market volatility resulting from the COVID-19 pandemic, which increased our effective tax rate by 1.2%.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details