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Document and Entity Information - USD ($)
 12 Months Ended
Mar. 31, 2022
May 12, 2022
Sep. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Mar. 31, 2022    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Trading Symbol ABMD    
Entity Registrant Name ABIOMED, Inc.    
Entity Central Index Key 0000815094    
Current Fiscal Year End Date --03-31    
Entity Well-known Seasoned Issuer Yes    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   45,563,937  
Entity Public Float     $ 14,399,855,714
Entity Interactive Data Current Yes    
Document Annual Report true    
Document Transition Report false    
ICFR Auditor Attestation Flag true    
Entity File Number 001-09585    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 04-2743260    
Entity Address, Address Line One 22 Cherry Hill Drive    
Entity Address, City or Town Danvers    
Entity Address, State or Province MA    
Entity Address, Postal Zip Code 01923    
City Area Code 978    
Local Phone Number 646-1400    
Title of 12(b) Security Common Stock, $0.01 par value    
Security Exchange Name NASDAQ    
Auditor Name Deloitte & Touche LLP    
Auditor Location Boston, Massachusetts    
Auditor Firm ID 34    
Documents Incorporated by Reference

Portions of the registrant’s definitive Proxy Statement relating to the 2022 Annual Meeting of Stockholders are incorporated by reference into Part III (Items 10, 11, 12, 13 and 14) of this Annual Report on Form 10-K. Such Proxy Statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this report relates.