XML 11 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Cover Page - shares
 6 Months Ended
Sep. 30, 2025
Oct. 15, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2025  
Document Transition Report false  
Entity File Number 0-29174  
Entity Registrant Name LOGITECH INTERNATIONAL S.A.  
Entity Incorporation, State or Country Code V8  
Entity Address, Address Line One 1015 Lausanne  
Entity Address, Country CH  
Entity Address, Address Line Two c/o Logitech Inc.  
Entity Address, Address Line Three 3930 North First Street  
Entity Address, City or Town San Jose  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 95134  
City Area Code 510)  
Local Phone Number 795-8500  
Title of 12(b) Security Registered Shares  
Trading Symbol LOGI  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   146,857,663
Entity Central Index Key 0001032975  
Amendment Flag false  
Current Fiscal Year End Date --03-31  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2