| Name | OperatingIncomeRailroadAbstractRWY |
|---|---|
| Namespace | http://disclosure.edinet-fsa.go.jp/taxonomy/jppfs/2018-03-31/jppfs_cor |
| Prefix | jppfs_cor |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| 鉄軌道事業営業利益 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 鉄軌道事業営業利益、鉄道事業 [タイトル項目] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Operating profit - railroad | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Operating profit - railroad - RWY [abstract] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| IndustryAbbreviation | rwy | http://www.xbrl.org/2003/role/reference |
| Name | Relation Type | Role | |
|---|---|---|---|
jppfs_cor:OperatingRevenueRailroadAbstractRWY | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_StatementOfIncome-ListOfAccounts | |
jppfs_cor:OperatingExpensesRailroadAbstractRWY | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_StatementOfIncome-ListOfAccounts | |
jppfs_cor:OperatingIncomeRailroadOERWY | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_StatementOfIncome-ListOfAccounts |
| Name | Relation Type | Role | |
|---|---|---|---|
jppfs_cor:StatementOfIncomeLineItems | general-special | http://disclosure.edinet-fsa.go.jp/role/jppfs/rol_rwy_StatementOfIncome-ListOfAccounts |