XML 54 R43.htm IDEA: XBRL DOCUMENT v3.8.0.1

8. Restricted cash (Tables)

12 Months Ended

Dec. 31, 2017

Restricted Cash Tables

Restricted cash

	December 31, 2017	December 31, 2016
Current
Agreement with the São Paulo municipal government (i)	12,055	15,858
Brazilian Federal Savings Bank – escrow deposits (ii)	1,209	2,989
Other	5,558	5,231
	18,822	24,078

X

- References

No definition available.

+ Details

Name:	SBS_RestrictedCashTablesAbstract
Namespace Prefix:	SBS_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	SBS_SummaryOfRestrictedCashTableTextBlock
Namespace Prefix:	SBS_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration