Income Taxes	9 Months Ended
Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	14. Income TaxesOur effective tax rate for the three and nine months ended September 30, 2020 was 20.2% and 13.9%, respectively, compared to 16.2% and 14.8% for the three and nine months ended September 30, 2019, respectively. The effective tax rate in each period was favorably impacted by the recognition of an income tax benefit related to excess tax benefits from stock option exercises totaling $17,834 and $80,343 for the three and nine months ended September 30, 2020, respectively, and $27,604 and $86,809 for the three and nine months ended September 30, 2019, respectively.

- 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.

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