| 流動負債 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 流動負債 | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| 流動負債合計 | ja | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| 流動負債計 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/ivt/role/totalLabel | http://www.xbrl.org/2003/role/link |
| 流動負債計 | ja | http://disclosure.edinet-fsa.go.jp/jppfs/sec/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Current liabilities | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Current liabilities | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Total current liabilities | en | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Total current liabilities | en | http://disclosure.edinet-fsa.go.jp/jppfs/ivt/role/totalLabel | http://www.xbrl.org/2003/role/link |
| Total current liabilities | en | http://disclosure.edinet-fsa.go.jp/jppfs/sec/role/totalLabel | http://www.xbrl.org/2003/role/link |