| 売上債権の増減額(△は増加) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 売上債権の増減額(△は増加)、営業活動によるキャッシュ・フロー | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 売上債権の増減額 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/spf/role/label | http://www.xbrl.org/2003/role/link |
| Decrease (increase) in trade receivables | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Decrease (increase) in trade receivables - 2 - OpeCF | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Decrease (increase) in trade receivables | en | http://disclosure.edinet-fsa.go.jp/jppfs/spf/role/label | http://www.xbrl.org/2003/role/link |