| Art 19 para 2 item 4-3 | en | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Determination to hold shareholders meeting for purpose of acquiring all shares subject to class-wide call | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Determination to hold shareholders meeting for purpose of acquiring all shares subject to class-wide call [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 第19条第2項第4号の3 | ja | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| 全部取得条項付種類株式の全部の取得を目的とする株主総会の招集の決定 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 全部取得条項付種類株式の全部の取得を目的とする株主総会の招集の決定 [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |