Summary of Significant Accounting Policies (Policies)	3 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2015
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The condensed consolidated interim 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 (“GAAP”) for interim financial information and therefore do not include all the information required by GAAP for complete financial statements. They should be read in conjunction with the Company’s audited consolidated financial statements for the fiscal year ended March 31, 2015, included in its Annual Report on Form 10-K filed with the Securities and Exchange Commission (“SEC”) on June 5, 2015. In the opinion of management, these condensed consolidated financial statements include all adjustments, consisting of only normal, recurring adjustments, necessary for a fair statement of the results for the periods presented. Operating results for the three months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the fiscal year ending March 31, 2016, or any future periods.
Fiscal Year	Fiscal Year The Company’s fiscal year ends on March 31. Interim quarter ends on last Friday of each quarter. For purposes of presentation, the Company has indicated its quarterly periods as ending on the quarter end.
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 reported amounts of assets, liabilities, net sales and expenses, and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements. Examples of significant estimates and assumptions made by management involve the fair value of goodwill, warranty liabilities, accruals for discretionary customer programs, sales return reserves, allowance for doubtful accounts, inventory valuation, 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 from those estimates.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the FASB issued Accounting Standards Update No. 2014-9, "Revenue from Contracts with Customers (Topic 606)," ("ASU 2014-9"). ASU 2014-9 outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. Under the new model, recognition of revenue occurs when a customer obtains control of promised goods or services in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In addition, the new standard requires that reporting companies disclose the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. As currently issued, the new standard is effective beginning in the first quarter of fiscal year 2019; early adoption is prohibited. The new standard is required to be applied retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying it recognized at the date of initial application. The Company has not yet selected a transition method nor has it determined the impact of the new standard on its condensed consolidated financial statements.