| Additional liabilities, contingent liabilities recognised in business combination | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total additional liabilities, contingent liabilities recognised in business combination | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| The amount of additional contingent liabilities recognised in business combinations. [Refer: Contingent liabilities recognised in business combination; Business combinations [member]; Contingent liabilities [member]] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Passivos adicionais, passivos contingentes reconhecidos numa concentração de atividades empresariais | pt | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| A quantia dos passivos contingentes adicionais reconhecidos em concentrações de atividades empresariais. [Consultar: Passivos contingentes reconhecidos numa concentração de atividades empresariais; Concentrações de atividades empresariais [member]; Passivos contingentes [member]] | pt | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |