| 監査等委員会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 |
| 監査等委員(社外取締役を除く) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 監査等委員(社外取締役を除く) [メンバー] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Directors appointed as audit and supervisory committee members excluding outside directors | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Directors appointed as audit and supervisory committee members excluding outside directors [member] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |