Nature of the Business and Basis of Presentation |
3 Months Ended |
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Jun. 27, 2025 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Nature of the Business and Basis of Presentation | 1. Nature of the Business and Basis of Presentation Allegro MicroSystems, Inc., together with its consolidated subsidiaries (the “Company”), is a leading global designer, developer, fabless manufacturer and marketer of sensing and power solutions for motion control and energy-efficient systems in automotive and industrial and other markets. The Company is incorporated under the laws of Delaware. The Company is headquartered in Manchester, New Hampshire and has a global footprint across multiple continents. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). Certain information and footnote disclosures normally included in the Company’s annual audited consolidated financial statements and accompanying notes have been condensed in, or omitted from, these interim financial statements. These unaudited condensed consolidated financial statements include the Company’s accounts and those of its subsidiaries. All intercompany transactions and balances have been eliminated in consolidation. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended March 28, 2025. The March 28, 2025 condensed consolidated balance sheet included herein is derived from the Company’s audited consolidated financial statements. In the opinion of the Company’s management, the financial statements for the interim periods presented reflect all adjustments necessary for a fair statement of the Company’s financial position, results of operations and cash flows. The results reported in these unaudited condensed consolidated financial statements are not necessarily indicative of results that may be expected for the entire year. Financial Periods The Company’s first quarter three-month period is a 13-week period. The Company’s first quarter of fiscal year 2026 |