| Toelichting op het kasstroomoverzicht. | nl | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Disclosure of accounting policies Cash flow statement | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Informatieverschaffing over grondslagen Kasstroomoverzicht | nl | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Accounting policies Cash flow statement | en | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |
| Grondslagen Kasstroomoverzicht | nl | http://www.xbrl.org/2003/role/terseLabel | http://www.xbrl.org/2003/role/link |