Earnings per share (Details) - shares	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Notes and other explanatory information [abstract]
Number of instruments that are antidilutive in period presented (in shares)	0	0	0

Number of (units of) instruments that are antidilutive in the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 33
-IssueDate 2025-01-01
-Paragraph 70
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=33&code=ifrs-tx-2025-en-r&anchor=para_70_c&doctype=Standard
-URIDate 2025-03-27

Name:	ifrs-full_NumberOfInstrumentsThatAreAntidilutiveInPeriodPresented
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration