| 株主資本 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 株主資本 [メンバー] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 株主資本合計 | ja | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Shareholders' equity | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Shareholders' equity [member] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Total shareholders' equity | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |