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Provision for tax, civil and labor losses and Judicial deposits and escrow accounts (Details 4 - Textuals) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of contingent liabilities [line items]    
Indemnification asset [1] R$ 180,417 R$ 160,470
Interest rate basis CDI  
Cogna Group    
Disclosure of contingent liabilities [line items]    
Indemnification asset R$ 1,801 1,998
Cogna Group | Somos Sistemas [Member]    
Disclosure of contingent liabilities [line items]    
Indemnification asset R$ 180,417 R$ 160,470
Interest rate basis CDI (Certificates of Interbank Deposits).  
[1] Refers to an indemnification asset of the seller in connection with the acquisition of Somos (Vasta’s Predecessor) by Cogna Group (Vasta’s Parent Company) and recognized at the date of the business combination, in order to indemnify the Company for all losses that may be incurred in connection with all contingencies or lawsuits, substantially tax proceedings related to business combinations up to the maximum amount of R$180,417 (R$ 160,470 on December 31, 2021). See Note 21. This asset is indexed to CDI (Certificates of Interbank Deposits).