| 営業原価 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 営業原価 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 営業原価合計 | ja | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Operating costs | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Operating costs | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Total operating costs | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |