| 報告セグメントごとの負ののれん発生益を認識する要因となった事象の概要 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 報告セグメントごとの負ののれん発生益を認識する要因となった事象の概要 [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 factors which led to recognition of gain on bargain purchase for each reportable segment | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Description of factors which led to recognition of gain on bargain purchase for each reportable segment [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |