| Number of other equity instruments outstanding in share-based payment arrangement | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Number of other equity instruments outstanding in share-based payment arrangement at beginning of period | en | http://www.xbrl.org/2003/role/periodStartLabel | http://www.xbrl.org/2003/role/link |
| Number of other equity instruments outstanding in share-based payment arrangement at end of period | en | http://www.xbrl.org/2003/role/periodEndLabel | http://www.xbrl.org/2003/role/link |
| The number of other equity instruments (ie other than share options) outstanding in a share-based payment arrangement. | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Zahl sonstiger in einer aktienbasierten Vergütungsvereinbarung ausstehender Instrumente | de | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Die Zahl sonstiger in einer aktienbasierten Vergütungsvereinbarung ausstehender Eigenkapitalinstrumente (d. h. außer Aktienoptionen). | de | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |