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Nature of the Business and Basis of Presentation | 3 Months Ended
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Jun. 25, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Nature of the Business and Basis of Presentation | Nature of the Business and Basis of Presentation Allegro MicroSystems, Inc., together with its consolidated subsidiaries (“AMI” or the “Company”), is a global leader in designing, developing and manufacturing sensing and power solutions for motion control and energy-efficient systems in automotive and industrial markets. The Company is headquartered in Manchester, New Hampshire and has a global footprint with 16 locations across four continents. The accompanying unaudited condensed consolidated financial statements have been prepared by the Company. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). The unaudited condensed consolidated financial statements include the Company's accounts and those of its subsidiaries. All intercompany 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 filed with the SEC on May 19, 2021 (the “2021 Annual Report”). In the opinion of the Company's management, the financial information for the interim periods presented reflects all adjustments necessary for a fair presentation of the Company's financial position, results of operations and cash. The results reported in these unaudited condensed consolidated financial statements are not necessarily indicative of results that may be expected for the entire year. On November 2, 2020, the Company completed its initial public offering (“IPO”). Refer to Note 1, “Nature of Business and Basis of Presentation” to the Company’s 2021 Annual Report for details. Financial Periods The Company’s first quarter three-month period is a 13-week period ending on the Friday closest to the last day in June. The Company’s first quarter of fiscal 2022 ended June 25, 2021, and the Company’s first quarter of fiscal 2021 ended June 26, 2020.

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- Definition The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -URI http://asc.fasb.org/topic&trid=2122149 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -URI http://asc.fasb.org/topic&trid=2197479 + Details
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