| 当四半期累計期間又は当中間期において重要な変更がなかった旨 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 当四半期累計期間又は当中間期において重要な変更がなかった旨、事業等のリスク | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Description of fact that there was no significant change in year to quarter end period or semi-annual period | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Description of fact that there was no significant change in year to quarter end period or semi-annual period, Business risks | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |