| 監査役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 |
| 監査役(社外監査役を除く) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 監査役(社外監査役を除く) [メンバー] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Corporate auditors excluding outside corporate auditors | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Corporate auditors excluding outside corporate auditors [member] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |