| 金融商品取引責任準備預託金 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 金融商品取引責任準備預託金、流動資産、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 |
| Cash segregated as deposits for financial instruments transaction liabilities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Cash segregated as deposits for financial instruments transaction liabilities - CA - SEC | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |