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Use of estimates and judgements (Details)	12 Months Ended
	Dec. 31, 2023
Use of estimates and judgements
Sales Return Term from Delivery Date	4 months

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- References

No definition available.

+ Details

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Namespace Prefix:	vsta_
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Period Type:	duration

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- Definition

The sales return term from delivery date.

+ References

No definition available.

+ Details

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