| 退職給付に係る会計処理の方法が連結財務諸表等と異なる旨 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 退職給付に係る会計処理の方法が連結財務諸表等と異なる旨 [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Description of fact that Accounting policy for retirement benefits is different from consolidated financial statements | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Description of fact that Accounting policy for retirement benefits is different from consolidated financial statements [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |