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COVER PAGE - USD ($)
 12 Months Ended
Apr. 03, 2021
May 13, 2021
Sep. 25, 2020
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Entity File Number 1-12696    
Entity Registrant Name Plantronics, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 77-0207692    
Entity Address, Address Line One 345 Encinal Street    
Entity Address, City or Town Santa Cruz    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 95060    
City Area Code 831    
Local Phone Number 420-3002    
Title of 12(b) Security COMMON STOCK, $0.01 PAR VALUE    
Trading Symbol PLT    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag true    
Entity Public Float     $ 471,886,734
Entity Common Stock, Shares Outstanding   41,838,866  
Documents Incorporated by Reference
DOCUMENTS INCORPORATED BY REFERENCE
Portions of the Registrant's Proxy Statement for its 2021 Annual Meeting of Stockholders are incorporated by reference into Part III of this Form 10-K. Such proxy statement will be filed with the Securities and Exchange Commission within 120 days of the registrant’s fiscal year ended April 3, 2021.
    
Current Fiscal Year End Date --04-03    
Document Period End Date Apr. 03, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Central Index Key 0000914025