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Income Taxes
3 Months Ended
Mar. 31, 2021
Income Tax Disclosure [Abstract]  
Income Taxes
Note 4 - Income Taxes
The provision for income taxes for the three months ended March 31, 2021, and 2020, consisted of the following:
For the Three Months Ended March 31,
20212020
(in thousands)
Current portion of income tax (expense) benefit:
Federal$$
State(158)(339)
Deferred portion of income tax benefit5299,347
Income tax (expense) benefit$(106)$99,008
Effective tax rate— %19.4 %
Recorded income tax expense or benefit differs from the amount that would be provided by applying the statutory United States federal income tax rate to income or loss before income taxes. These differences primarily relate to the effect of state income taxes, excess tax benefits and deficiencies from stock-based compensation awards, tax limitations on the compensation of covered individuals, changes in valuation allowances, the cumulative impact of other smaller permanent differences, and can also reflect the cumulative effect of an enacted tax rate change, in the period of enactment, on the Company’s net deferred tax asset and liability balance. The quarterly rate can also be affected by the proportional impacts of forecasted net income or loss for each period presented, as reflected in the table above.
For all years before 2017, the Company is generally no longer subject to United States federal or state income tax examinations by tax authorities.