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Income Taxes | 9 Months Ended
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Dec. 31, 2024
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes The Company is incorporated in Switzerland but operates in various countries with differing tax laws and rates. Further, a portion of the Company’s income before taxes and the provision for (benefit from) income taxes are generated outside of Switzerland. The income tax provision for the three and nine months ended December 31, 2024 was $45.1 million and $101.2 million based on an effective income tax rate of 18.4% and 17.2% of pre-tax income, respectively. The income tax provision (benefit) for the same periods ended December 31, 2023 was a benefit of $9.6 million and a provision of $33.3 million based on an effective income tax rate of (4.1)% and 7.0% of pre-tax income, respectively. The change in the effective income tax rate for the three and nine months ended December 31, 2024, compared with the same periods ended December 31, 2023, was primarily due to the change in the mix of income and losses in the various tax jurisdictions in which the Company operates and unrecognized tax benefits due to uncertain tax positions compared with the discrete tax benefits recognized in the prior period for the remeasurement of the tax basis of goodwill under the Swiss Federal Act on Tax Reform and AHV Financing ("TRAF"), remeasurement of the Company's Swiss deferred tax assets due to a change in tax rate, and Foreign Derived Intangible Income ("FDII") incentive provided by the Tax Cuts and Jobs Act. The canton of Vaud completed the legislative process to enact TRAF, a reform to better align the Swiss tax system to international tax standards, on March 10, 2020 to take effect as of January 1, 2020. In March 2020, the Company increased the tax basis of goodwill, as a transition measure under TRAF, to be amortized over ten years beginning on January 1, 2020. During the three months ended December 31, 2023, the Company remeasured the tax basis of goodwill under TRAF, which resulted in an income tax benefit of $25.1 million, net of assessment of uncertain tax positions. The remeasurement of the step-up will be amortized over the remaining ten-year amortization period. On December 29, 2023, a change to the cantonal tax legislation was published. According to the law approved by the Vaud parliament, a progressive scale will be applicable for cantonal tax purposes resulting in an increase from the then current tax rate of 13.61% to 14.28% effective fiscal year 2025. The increase in tax rate resulted in a tax benefit of $5.1 million due to a remeasurement of the Company's Swiss deferred tax assets in the fiscal quarter ended December 31, 2023. The Tax Cuts and Jobs Act enacted Section 250, which provides for a deduction with respect to Global Intangible Low-Taxed Income ("GILTI") and FDII in the U.S. The application of this tax incentive is inherently complex. During the three months ended December 31, 2023, the Company analyzed the applicability of FDII and determined that this tax incentive applies to fiscal years 2021, 2022 and 2023. As a result, the Company realized a tax benefit of $17.9 million related to FDII. The Company has also concluded that any GILTI tax since the enactment of Tax Cuts and Jobs Act is immaterial. The Base Erosion and Profit Shifting Project (the “BEPS Project”) undertaken by the Organization for Economic Co-operation and Development (the "OECD") recommended changes to numerous long-standing tax principles, including a proposal to reallocate profits among tax jurisdictions in which companies do business (“Pillar One”) and establishing a minimum tax on global income (“Pillar Two”). Some jurisdictions, including Switzerland, where the Company operates are implementing Pillar Two laws to effectuate a 15% minimum tax. The minimum tax effective beginning in fiscal year 2025 for the Company is treated as a current cost and does not have a material impact on the Company's effective tax rate. The OECD and participating countries continue to issue underlying rules and administrative guidance related to Pillar Two, and the Company continues to monitor the relevant developments.

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