XML 183 R107.htm IDEA: XBRL DOCUMENT v3.25.1

Trade receivables (Details Narrative) - BRL (R$) R$ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2024
IfrsStatementLineItems [Line Items]
Judicial payment		R$ 701,000
Non Adjusting Event [Member]
IfrsStatementLineItems [Line Items]
Judicial payment received	R$ 55,399

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- References

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Namespace Prefix:	sbs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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Name:	sbs_JudicialPayment
Namespace Prefix:	sbs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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No definition available.

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Namespace Prefix:	sbs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Details

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Balance Type:
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