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Marketable securities (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Marketable securities
Marketable securities	R$ 380,514	R$ 166,349
Average gross yield of securities	104.00%	101.00%
Credit Risk | AAA
Marketable securities
Financial bills (LF)	R$ 0	R$ 1,640
Financial treasury bills (LFT)	0	164,709
Private investment fund	31,842	0
Credit Risk | AA
Marketable securities
Private investment fund	R$ 348,672	R$ 0

X

- Definition

The percentage of average gross yield of securities.

+ References

No definition available.

+ Details

Name:	vsta_AverageGrossYieldOfSecurities
Namespace Prefix:	vsta_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The amount of financial bills.

+ References

No definition available.

+ Details

Name:	vsta_CurrentBills
Namespace Prefix:	vsta_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of current marketable securities that are not classified as cash and cash equivalents.

+ References

No definition available.

+ Details

Name:	vsta_CurrentMarketableSecurities
Namespace Prefix:	vsta_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of current private investment fund.

+ References

No definition available.

+ Details

Name:	vsta_CurrentPrivateInvestmentFund
Namespace Prefix:	vsta_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of financial treasury bills.

+ References

No definition available.

+ Details

Name:	vsta_CurrentTreasuryBills
Namespace Prefix:	vsta_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	vsta_DisclosureOfMarketableSecuritiesLineItems
Namespace Prefix:	vsta_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CreditRatingStandardPoorsAxis=srt_StandardPoorsAAARatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CreditRatingStandardPoorsAxis=srt_StandardPoorsAARatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: