| Name | PartnersCapitalAccountTreasuryUnitsPurchases |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | debit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Partners' Capital Account, Treasury Units, Purchased | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Value of units that were previously issued and have been repurchased during the year. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| SourceName | Reference Project:Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2020 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2019-11 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:PartnersCapitalAccountUnitsTreasury | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfPartnersCapital | |
us-gaap:PartnersCapitalAccountUnitsTreasury | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfPartnersCapitalStatementTable |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:IncreaseDecreaseInPartnersCapitalRollForward | parent-child | http://fasb.org/us-gaap/role/statement/StatementOfPartnersCapital | |
us-gaap:PartnersCapitalAccountPeriodIncreaseDecrease | summation-item | http://fasb.org/us-gaap/role/statement/StatementOfPartnersCapital | |
us-gaap:IncreaseDecreaseInPartnersCapitalRollForward | domain-member | http://fasb.org/us-gaap/role/statement/StatementOfPartnersCapitalStatementTable | |
us-gaap:InvestmentCompanyCapitalShareTransactionsPartnershipAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany | |
us-gaap:InvestmentCompanyNetAssetsPeriodIncreaseDecrease | summation-item | http://fasb.org/us-gaap/role/disclosure/FinancialServicesInvestmentCompany |