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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2021
Income Tax Disclosure [Abstract] |
Reconciliation of Statutory Federal Income Tax Rate to Our Effective Rate for Continuing Operations | A reconciliation of the statutory federal income tax rate to our effective rate for continuing operations is provided below:
| Three Months Ended March 31, |
| 2021 |  |  | 2020 |
Statutory federal income tax rate |  | 21.0 | % |  |  | 21.0 | %
State income taxes, net of federal income tax |  | 1.7 |  |  |  | 2.2 |
Stock-based compensation windfall benefit |  | (1.9 | ) |  |  | (16.0 | )
Permanent differences and other |  | (0.7 | ) |  |  | (4.4 | )
|  | 20.1 | % |  |  | 2.8 | %

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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