| r0.c0 | Capital accounts/ | de-gaap-ci:table.kke.equityAccounts | xbrli:stringItemType | duration | * | * | * |
| r1.c0 | Changes in equity accounts [dimension]/ | de-gaap-ci:piTitle.equityAccounts | xbrli:stringItemType | duration | * | * | * |
| r2.c0 | Closing balance of equity capital account (statement of changes in capital accounts of commercial partnerships)/ | de-gaap-ci:table.kke.sumEquityAccounts.sumYearEnd | xbrli:monetaryItemType | duration | * | * | * |
| r3.c0 | Opening balance capital account (statement of changes in capital accounts of commercial partnerships)/ | de-gaap-ci:table.kke.sumEquityAccounts.sumYearEnd.begin | xbrli:monetaryItemType | duration | * | * | * |
| r4.c0 | Deposits (statement of changes in capital accounts of commercial partnerships)/ | de-gaap-ci:table.kke.sumEquityAccounts.sumYearEnd.deposits | xbrli:monetaryItemType | duration | * | * | * |
| r5.c0 | Capital withdrawals in reporting period (statement of changes in capital accounts of commercial partnerships)/ | de-gaap-ci:table.kke.sumEquityAccounts.sumYearEnd.withdrawals | xbrli:monetaryItemType | duration | * | * | * |
| r6.c0 | Capital adjustment through transfer of tax-allowable reserves within the meaning of EStG s.6b (statement of changes in capital accounts of commercial partnerships)/ | de-gaap-ci:table.kke.sumEquityAccounts.sumYearEnd.capAdjust6bRes | xbrli:monetaryItemType | duration | * | * | * |
| r7.c0 | Interest in net income/net loss (statement of changes in capital accounts of commercial partnerships)/ | de-gaap-ci:table.kke.sumEquityAccounts.sumYearEnd.incomeShare | xbrli:monetaryItemType | duration | * | * | * |
| r8.c0 | Reclassification to other capital accounts (statement of changes in capital accounts of commercial partnerships)/ | de-gaap-ci:table.kke.sumEquityAccounts.sumYearEnd.capitalMovements | xbrli:monetaryItemType | duration | * | * | * |
| r9.c0 | Other capital account adjustments (statement of changes in capital accounts of commercial partnerships)/ | de-gaap-ci:table.kke.sumEquityAccounts.sumYearEnd.capitalAdjustmentOther | xbrli:monetaryItemType | duration | * | * | * |