| 社債発行費 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 社債発行費、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 |
| 社債発行費等 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/elc/role/label | http://www.xbrl.org/2003/role/link |
| Bond issuance costs | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Bond issuance costs - OpeCF | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Bond issuance costs | en | http://disclosure.edinet-fsa.go.jp/jppfs/elc/role/label | http://www.xbrl.org/2003/role/link |