| 減価償却費 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 減価償却費、販売費及び一般管理費 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 固定資産減価償却費 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ivt/role/label | http://www.xbrl.org/2003/role/link |
| Depreciation | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Depreciation-SGA | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Depreciation | en | http://disclosure.edinet-fsa.go.jp/jppfs/ivt/role/label | http://www.xbrl.org/2003/role/link |