| 契約資産(純額) | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 契約資産(純額) | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 契約資産 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/cte/role/label | http://www.xbrl.org/2003/role/link |
| Contract assets, net | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Contract assets, net | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Contract assets | en | http://disclosure.edinet-fsa.go.jp/jppfs/cte/role/label | http://www.xbrl.org/2003/role/link |