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Income Taxes
 3 Months Ended
Mar. 31, 2024
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
During the three months ended March 31, 2024, gross unrecognized tax benefits increased by $0.7 million to $25.1 million. The increase is primarily related to recording reserves offset by settlements which occurred during the period. If recognized, approximately $21.9 million in unrecognized tax benefits would affect our effective tax rate and net earnings in future periods.
We recognize interest and penalties related to unrecognized tax benefits as a component of our income tax provision. We had accrued interest and penalties totaling $6.5 million and $6.4 million as of March 31, 2024 and December 31, 2023, respectively, that were included in other noncurrent liabilities in the Condensed Consolidated Balance Sheets.
Accounting for uncertain tax positions is determined by prescribing the minimum probability threshold that a tax position is more likely than not to be sustained based on the technical merits of the position. Mosaic is continually under audit by various authorities in the normal course of business. Such tax authorities may raise issues contrary to positions taken by the Company. If such positions are ultimately not sustained by the Company, this could result in material assessments to the Company. The costs related to defending, if needed, such positions on appeal or in court may be material. The Company believes that any issues raised have been properly accounted for in its current financial statements.
For the three months ended March 31, 2024, discrete tax items recorded in tax expense was a benefit of approximately $0.8 million. The net tax benefit consisted primarily of share-based excess benefit, true up of estimates, and other miscellaneous costs. In addition to items specific to the period, our income tax rate is impacted by the mix of earnings across the jurisdictions in which we operate, by a benefit associated with depletion, changes in valuation allowances, withholding tax expense and by the impact of certain entities being taxed in both their foreign jurisdiction and the U.S., including foreign tax credits for various taxes incurred.