| Explanation of significant differences in amount presented in statement of comprehensive income and amounts reported to tax authorities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Concept not required as result of 2015 Amendments to the IFRS for SMEs | en | http://www.xbrl.org/2009/role/deprecatedLabel | http://www.xbrl.org/2003/role/link |
| 2017-01-01 | en | http://www.xbrl.org/2009/role/deprecatedDateLabel | http://www.xbrl.org/2003/role/link |
| The explanation of significant differences in the amount presented in the statement of comprehensive income and amounts reported to tax authorities. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |