| 預り証拠金の増減額(△は減少) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 預り証拠金の増減額(△は減少)、営業活動によるキャッシュ・フロー、商品先物取引業 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Increase (decrease) in customers' deposits received for commodity futures transaction | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Increase (decrease) in customers' deposits received for commodity futures transaction-OpeCF-CMD | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |