| COVER PAGE COVER PAGE - USD ($) | 12 Months Ended | ||
| Mar. 28, 2020 | Jun. 03, 2020 | Sep. 27, 2019 | |
| Cover [Abstract] | |||
| Document Type | 10-K/A | ||
| Document Annual Report | true | ||
| Document Period End Date | Mar. 28, 2020 | ||
| 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 | 426-5858 | ||
| Title of 12(b) Security | COMMON STOCK, $0.01 PAR VALUE | ||
| Trading Symbol | PLT | ||
| Security Exchange Name | NYSE | ||
| Entity Well-known Seasoned Issuer | No | ||
| 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 | ||
| Entity Public Float | $ 1,494,433,881 | ||
| Entity Common Stock, Shares Outstanding | 40,683,561 | ||
| Documents Incorporated by Reference | Portions of the Registrant's Proxy Statement for its 2020 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 March 28, 2020 | ||
| Entity Central Index Key | 0000914025 | ||
| Current Fiscal Year End Date | --03-28 | ||
| Document Fiscal Year Focus | 2020 | ||
| Document Fiscal Period Focus | FY | ||
| Amendment Flag | true | ||
| Amendment Description | This Amendment No. 1 on Form 10-K/A (the “Amendment”) of Plantronics, Inc. (the “Company”) amends the Company’s Annual Report on Form 10-K for the year ended March 28, 2020, originally filed with the Securities and Exchange Commission on June 8, 2020 (the “Original Report”). This Amendment is being filed solely for the purpose of inserting the conformed signature of the current Principal Accounting Officer, which was inadvertently omitted from the Original Report. This Amendment speaks as of the original filing date of the Form 10-K, does not reflect events that may have occurred subsequent to the original filing date, and does not modify or update in any way disclosures made in the Original Report. No other changes have been made to the Original Report. As required by Rule 12b-15 of the Securities Exchange Act of 1934, as amended, this Amendment contains new certifications by the Company’s principal executive officer and principal financial officer, which are being filed as exhibits to the Amendment. Because the Amendment includes no financial statements, the Company is not including certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. |
