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Income Taxes | 3 Months Ended
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Mar. 31, 2025
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes Our tax provision for interim periods is determined using an estimated annual effective tax rate, adjusted for discrete items arising in that quarter. In each quarter, we update the estimated annual effective tax rate and make a year-to-date adjustment to the provision. The estimated annual effective tax rate is subject to volatility due to several factors, including variability in accurately predicting our pre-tax income or loss and the mix of jurisdictions to which they relate, intercompany transactions, changes in how we do business, and tax law developments. Our effective tax rate for the three months ended March 31, 2025 differs from the U.S. federal statutory tax rate of 21% primarily due to the need to record a valuation allowance on U.S. losses and to a lesser extent tax expense on foreign earnings taxed at different rates. Our effective tax rate for the three months ended March 31, 2024 differed from the U.S. federal statutory tax rate of 21% primarily due to the need to record a valuation allowance in the U.S. on losses, a tax benefit on foreign losses in connection with employee separation costs, and to a lesser extent, tax expense on foreign earnings taxed at different rates. In addition, during the first quarter of 2024, the Company restructured its tax operations which resulted in a reduction to the U.S. valuation allowance. The realization of deferred tax assets is dependent upon the generation of sufficient taxable income of the appropriate character in future periods. We regularly assess the ability to realize our deferred tax assets and establish a valuation allowance if it is more-likely-than-not that some portion of the deferred tax assets will not be realized. In performing this assessment with respect to each jurisdiction, we review all available positive and negative evidence. Primarily due to our history of losses, we believe that it is more likely than not that the deferred tax assets of our U.S. federal, certain U.S. states, Denmark, U.K., and other non-U.S. jurisdictions will not be realized and we have maintained a full valuation allowance against such deferred tax assets. As of March 31, 2025, we had $181.2 million of gross unrecognized tax benefits, of which $32.8 million would impact the effective tax rate, if recognized. It is reasonably possible that the amount of unrecognized tax benefits as of March 31, 2025 could increase or decrease significantly as the timing of the resolution, settlement, and closure of audits is highly uncertain. We believe that we have adequately provided for any reasonably foreseeable outcome related to our tax audits and that any settlement will not have a material impact on our financial condition and operating results at this time.

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