| 発行済株式総数/総株主の議決権 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 発行済株式総数/総株主の議決権 [メンバー] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Total number of issued shares / Number of voting rights held by all shareholders | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Total number of issued shares / Number of voting rights held by all shareholders [member] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |