| Adjustments for decrease (increase) in accrued income including contract assets | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total adjustments for decrease (increase) in accrued income including contract assets | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Adjustments for the decrease (increase) in accrued income including contract assets to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Accrued income including contract assets; Profit (loss)] | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Viitlaekumiste, sealhulgas lepinguliste varade vähenemisega (suurenemisega) seotud korrigeerimine | et | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Viitlaekumiste, sealhulgas lepinguliste varade vähenemisega (suurenemisega) seotud korrigeerimine, et kooskõlastavalt võrrelda kasumit (kahjumit) põhitegevusest saadud (põhitegevuses kasutatud) netorahavooga. [Viide: viitlaekumised, sealhulgas lepingulised varad; kasum (kahjum)] | et | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Viitlaekumiste, sealhulgas lepinguliste varade vähenemisega (suurenemisega) seotud korrigeerimine kokku | et | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |