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Group Information - Summary of Information about Entity with Significant Influence Over Group (Details) - BioNTech - Medine GmbH
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Significant Investments In Subsidiaries [Line Items]    
Country of incorporation Germany  
Registered office Mainz  
Ownership of ordinary shares in BioNTech 17.25% 18.38%