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Lease liabilities (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Lease liabilities. |  |  |  |
Average term of lease agreements (in years) |  | 7 years |  |
Weighted average rate (%) |  | 14.32% |  |
Reconciliation of changes in lease liabilities |  |  |  |
Opening balance |  | R$ 160,542 | R$ 173,103 |
Additions for new lease agreements | [1] | 12,002 | 25,513 |
Renegotiation |  | 0 | (12,439) |
Cancelled contracts |  | (3,180) | (3,481) | R$ (3,429)
Renegotiation - COVID-19 impact |  | 0 | (448) |
Interest |  | 13,143 | 14,984 |
Payment of interest |  | (14,941) | (14,692) | (14,675)
Payment of principal |  | (27,003) | (21,998) | (12,835)
Closing balance |  | 140,563 | 160,542 | 173,103
Current liabilities |  | 23,151 | 26,636 |
Non-current liabilities |  | 117,412 | 133,906 |
Total |  | R$ 140,563 | 160,542 | R$ 173,103
Term of new sublease agreements (in months) |  | 36 months |  |
Minimum weighted average rate (%) |  | 10.30% |  |
Maximum weighted average rate (%) |  | 10.90% |  |
Short-term lease period (in months) |  | 12 months |  |
Fixed and variable lease payments, including those related to short-term contracts and to low-value assets |  |  |  |
Fixed Payments |  | R$ 41,944 | 36,689 |
Payments related to short-term contracts and low value assets, variable price contracts |  | 18,312 | 17,775 |
Total |  | R$ 60,256 | R$ 54,464 |
[1] | Refers to new lease agreements which the Company has embedded part of its digital learning solutions. These lease agreements (digital learning) refer to lease terms of 36 months, with rates negotiated in the range of 10.3% p.a to 10.9% p.a.

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- Definition The amount recognised in profit or loss for the reporting period to reflect changes in lease payments that arise from rent concessions occurring as a direct consequence of the covid-19 pandemic, to which the lessee has applied the practical expedient in paragraph 46A of IFRS 16. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 60A -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_60A_b&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_AmountRecognisedInProfitOrLossForReportingPeriodToReflectChangesInLeasePaymentsThatAriseFromRentConcessionsOccurringAsDirectConsequenceOfCovid19PandemicToWhichLesseeAppliedPracticalExpedientInParagraph46AOfIFRS16
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of current lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_47_b&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_CurrentLeaseLiabilities
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The amount of the expense relating to short-term leases accounted for applying paragraph 6 of IFRS 16. This expense need not include the expense relating to leases with a lease term of one month or less. Short-term lease is a lease that, at the commencement date, has a lease term of 12 months or less. A lease that contains a purchase option is not a short-term lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 53 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_c&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of the expense relating to variable lease payments not included in the measurement of lease liabilities. Variable lease payments are the portion of payments made by a lessee to a lessor for the right to use an underlying asset during the lease term that varies because of changes in facts or circumstances occurring after the commencement date, other than the passage of time. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 53 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_53_e&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_47_b&doctype=Standard -URIDate 2022-03-24 + Details
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Data Type: | xbrli:monetaryItemType
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- Definition The amount of non-current lease liabilities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2022-03-24 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2022-en-r&anchor=para_47_b&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_NoncurrentLeaseLiabilities
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The cash outflow for payment of lease liabilities, classified as financing activities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2022-03-24 -Paragraph 17 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2022-en-r&anchor=para_17_e&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities
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Balance Type: | credit
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- References No definition available. + Details
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- Definition Represents the amount of addition in lease liabilities due to new lease agreements. + References No definition available. + Details
Name: | vsta_AdditionsToNewLeaseAgreements
Namespace Prefix: | vsta_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the aggregate amount of fixed and variable lease payments. + References No definition available. + Details
Name: | vsta_AggregateFixedAndVariableLeasePayments
Namespace Prefix: | vsta_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the average term of lease agreements. + References No definition available. + Details
Name: | vsta_AverageTermOfLeaseAgreements
Namespace Prefix: | vsta_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the amount of cancellation on lease agreements. + References No definition available. + Details
Name: | vsta_CancellationOfLeaseAgreements
Namespace Prefix: | vsta_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | vsta_FixedAndVariableLeasePaymentsAbstract
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of interest expense recognised on lease liabilities. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The cash outflow for payment of interest on leases, classified as operating activities. + References No definition available. + Details
Name: | vsta_InterestLeaseLiabilitiesPaidClassifiedAsOperatingActivities
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Represents the maximum weighted average discount rate for lease agreement calculated at point in time. + References No definition available. + Details
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Data Type: | num:percentItemType
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Period Type: | duration

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- Definition Represents the minimum weighted average discount rate for lease agreement calculated at point in time. + References No definition available. + Details
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Namespace Prefix: | vsta_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the weighted average discount rate for lease agreement calculated at point in time. + References No definition available. + Details
Name: | vsta_LeaseAgreementsWeightedAverageDiscountRatePercent
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Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the maximum short term lease period of lease agreements. + References No definition available. + Details
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Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
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- Definition The amount of renegotiation of lease liabilities. + References No definition available. + Details
Name: | vsta_RenegotiationOfLeaseLiabilities
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the term of sublease agreements. + References No definition available. + Details
Name: | vsta_TermOfNewSubleaseAgreements
Namespace Prefix: | vsta_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration