| 有価証券担保貸付金及び有価証券担保借入金の増減額 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 有価証券担保貸付金及び有価証券担保借入金の増減額、営業活動によるキャッシュ・フロー、第一種金融商品取引業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Decrease/increase in loans/borrowings secured by securities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Decrease/increase in loans/borrowings secured by securities-OpeCF-SEC | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |