Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	4. Income Taxes At the end of each interim period, we make our best estimate of the effective tax rate and the impact of discrete items, if any, and adjust the rate as necessary. The Company recorded income tax expense of $7.3 million for the three months ended March 31, 2021, resulting in an effective tax rate of 28.6 percent as compared to the 21.0 percent federal statutory rate. The difference between the Company’s effective tax rate and the statutory rate was primarily impacted by state taxes and disallowed expenses slightly offset by net income attributable to noncontrolling interest in our Indiana Harbor partnership for the three month period ended March 31, 2021. The Company recorded income tax expense of $10.4 million for the three months ended March 31, 2020, resulting in an effective tax rate of 63.8 percent as compared to the 21.0 percent federal statutory rate. The difference between the Company's effective tax rate and the federal statutory rate during the three months ended March 31, 2020 was primarily driven by the revaluation of certain deferred tax assets due to lower apportioned state tax rates, which resulted in $6.5 million of deferred income tax expense. Additionally, the tax law passed in response to COVID-19, the Coronavirus Aid, Relief, and Economic Security (“CARES”) Act, enacted March 27, 2020, allowed the Company to carry back net operating losses generated in 2019 to each of the five years preceding 2019. As a result, SunCoke recorded an additional tax benefit of $1.0 million in the first quarter of 2020.

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.