| Information about executive directors (Proposal) | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Information about executive directors (Proposal) [table] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 指名委員会等設置会社でのみ用いる。 | ja | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| 役員の状況(執行役)(議案) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 役員の状況(執行役)(議案) [表] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |