| 受取手形、売掛金及び契約資産の金額の注記 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 受取手形、売掛金及び契約資産の金額の注記 [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Notes regarding amounts of notes and accounts receivable - trade and contract assets | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Notes regarding amounts of notes and accounts receivable - trade and contract assets [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |