| 預り金及び受入保証金の増減額(△は減少) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 預り金及び受入保証金の増減額(△は減少)、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 |
| Increase (decrease) in deposits and guarantee deposits received | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Increase (decrease) in deposits and guarantee deposits received-OpeCF-SEC | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |