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Income Taxes
 3 Months Ended
Jun. 27, 2026
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
Our provision for income taxes is based on estimated effective tax rates derived from an estimate of annual consolidated earnings before taxes, adjusted for nondeductible expenses, other permanent items, and any applicable income tax credits.

The following table presents the provision for income taxes (in thousands) and the effective tax rates:
Three Months Ended
June 27,June 28,
20262025
Income before income taxes$94,155 $80,628 
Provision for income taxes$17,304 $19,931 
Effective tax rate18.4 %24.7 %

Our income tax expense was $17.3 million and $19.9 million for the first quarters of fiscal years 2027 and 2026, respectively, resulting in effective tax rates of 18.4 percent and 24.7 percent, respectively.

The effective tax rate for the first quarter of fiscal year 2027 was lower than the prior period presented, primarily due to the July 4, 2025 enactment of the One Big Beautiful Bill Act that reinstated immediate expensing of U.S. R&D expenditures. The effective tax rate for the first quarter of fiscal year 2026 was unfavorably impacted by the Tax Cuts and Jobs Act of 2017 provision that required worldwide R&D expenditures to be capitalized and amortized, which resulted in increased GILTI inclusions in that period, and by U.S. tax rules related to refundable tax credits, including R&D expenditure credits available to us in the United Kingdom, that reduced the amount of foreign tax credits available to offset GILTI.

The Company records unrecognized tax benefits for the estimated risk associated with tax positions taken on tax returns.  At June 27, 2026, the Company had unrecognized tax benefits of $32.1 million, all of which would impact the effective tax rate if recognized.  The Company’s total unrecognized tax benefits are classified as “Non-current income taxes” in the Consolidated Condensed Balance Sheets. The Company recognizes interest and penalties related to unrecognized tax benefits in the provision for income taxes.  As of June 27, 2026, the balance of accrued interest and penalties, net of tax, was $15.2 million. 

On July 27, 2015, the U.S. Tax Court issued an opinion in Altera Corp. et al. v. Commissioner which concluded that the regulations relating to the treatment of stock-based compensation expense in intercompany cost-sharing arrangements were invalid. In 2016 the U.S. Internal Revenue Service appealed the decision to the U.S. Court of Appeals for the Ninth Circuit (the “Ninth Circuit”). On June 7, 2019, the Ninth Circuit reversed the decision of the U.S. Tax Court and upheld the cost-sharing regulations. On February 10, 2020, Altera Corp. filed a Petition for a Writ of Certiorari with the Supreme Court of the United States, which was denied by the Supreme Court on June 22, 2020. Although the issue is now resolved in the Ninth Circuit, the Ninth Circuit's opinion is not binding in other circuits. The potential impact of this issue on the Company, which is not located within the jurisdiction of the Ninth Circuit, is unclear at this time. We will continue to monitor developments related to this issue and the potential impact of those developments on the Company's current and prior fiscal years.
The Company and its subsidiaries are subject to U.S. federal income tax as well as income tax in multiple state and foreign jurisdictions. Fiscal years 2017 through 2019 and 2023 through 2026 remain open to examination by the major taxing jurisdictions in which the Company operates.  

The Company's fiscal year 2017, 2018, and 2019 federal income tax returns are under examination by the U.S. Internal Revenue Service (“IRS”).  The IRS has proposed adjustments that would increase U.S. taxable income related to transfer pricing matters with respect to our U.S. and U.K. affiliated companies. The final Revenue Agent’s Report asserted additional tax of approximately $168.3 million, excluding interest, and imposed penalties of approximately $63.7 million. The Company does not agree with the IRS's positions and has not accrued an additional liability. In July 2024, the Company entered the administrative dispute process with the IRS Independent Office of Appeals (“IRS Appeals”). The Company continues to vigorously dispute the proposed adjustments, including through ongoing discussions as part of the administrative process with IRS Appeals. If an acceptable outcome cannot be reached with IRS Appeals, the Company is prepared to pursue judicial remedies, which could take a number of years to resolve. Although the final resolution of these matters is uncertain, the Company believes adequate amounts have been reserved in accordance with ASC 740 for any adjustments to the provision for income taxes that may ultimately result. However, the ultimate amount of assessed tax, interest, and penalties, if any, could be material and may have an adverse impact on our financial position, results of operations, and cash flows in future periods. The Company is not under an income tax audit in any other major taxing jurisdiction.