The Company and Summary of Significant Accounting Policies and Estimates (Policies)	9 Months Ended
	Dec. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated financial statements include the accounts of Logitech and its subsidiaries. All intercompany balances and transactions have been eliminated. The condensed consolidated financial statements are presented in accordance with accounting principles generally accepted in the United States of America ("U.S. GAAP") for interim financial information and therefore do not include all the information required by U.S. GAAP for complete financial statements. The condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements for the fiscal year ended March 31, 2021, included in its Annual Report on Form 10-K filed with the Securities and Exchange Commission ("SEC") on May 12, 2021. In the opinion of management, these condensed consolidated financial statements include all adjustments, consisting of only normal and recurring adjustments, necessary and in all material aspects, for a fair statement of the results of operations, comprehensive income, financial position, cash flows and changes in shareholders' equity for the periods presented. Operating results for the three and nine months ended December 31, 2021 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2022, or any future periods.
Changes in Significant Accounting Policies and Recent Accounting Pronouncements Adopted and Recent Accounting Pronouncements to Be Adopted	Changes in Significant Accounting Policies Other than the recent accounting pronouncements adopted and discussed below under Recent Accounting Pronouncements Adopted, there have been no material changes in the Company’s significant accounting policies during the nine months ended December 31, 2021 compared with the significant accounting policies described in its Annual Report on Form 10-K for the fiscal year ended March 31, 2021. Recent Accounting Pronouncements Adopted In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes" (ASU 2019-12), which eliminates certain exceptions for recognizing deferred taxes for investments, performing intraperiod allocation and calculating income taxes in interim periods. This ASU also includes guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. ASU 2019-12 is effective for annual and interim periods in fiscal years beginning after December 15, 2020. Early adoption is permitted. The Company adopted this standard effective April 1, 2021. The adoption of ASU 2019-12 did not have a material impact on the Company's condensed consolidated financial statements. Recent Accounting Pronouncements to Be Adopted In October 2021, the FASB issued ASU 2021-08, "Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers" (ASU 2021-08). The standard requires an acquirer in a business combination to recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 606, Revenue from Contracts with Customers, as if it had originated the contracts. The standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022. Early adoption is permitted. The Company does not expect the adoption of ASU 2021-08 to have a significant impact on its consolidated financial statements and plans to adopt the standard effective April 1, 2023.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Significant estimates and assumptions made by management involve the fair value of goodwill and intangible assets acquired from business acquisitions, contingent consideration for a business acquisition and periodic reassessment of its fair value, valuation of investment in privately held companies classified under Level 3 fair value hierarchy, pension obligations, accruals for customer incentives, cooperative marketing, and pricing programs and related breakage when appropriate, inventory valuation, share-based compensation expense, uncertain tax positions, and valuation allowances for deferred tax assets. Although these estimates are based on management’s best knowledge of current events and actions that may impact the Company in the future, actual results could differ materially from those estimates.
Risks and Uncertainties	Risks and Uncertainties We are subject to risks and uncertainties as a result of the novel coronavirus ("COVID-19"). Capital markets and economies worldwide have been negatively impacted by COVID-19 and it is still unclear how lasting and deep the economic impacts will be. During the three and nine months ended December 31, 2021, the COVID-19 pandemic had mixed effects on the Company’s results of operations. While the Company experienced increased sales for the nine months ended December 31, 2021, compared to the same period of the prior fiscal year, we also experienced supply and demand volatility, as the COVID-19 pandemic and related safety measures and restrictions have evolved differently across the world. In addition, we experienced industry-wide supply chain challenges. The ongoing and full extent of the impact of the COVID-19 pandemic on the Company's business and operational and financial performance and condition, including the sustainability of its effect on trends positive to the Company, is uncertain and will depend on many factors outside the Company's control, including but not limited to the timing, extent, duration and effects of the virus and any of its mutations and variants, the vaccination rates, the development of effective treatments, the imposition of effective public safety and other protective measures and the public's response to such measures, the impact of COVID-19 on the global economy and demand for the Company's products and services. Should the COVID-19 pandemic or global economic slowdown not improve or worsen, or if the Company's attempt to mitigate its impact on its operations and costs is not successful, the Company's business, results of operations, financial condition and prospects may be adversely affected.