| Name | FederalIncomeTaxNoteTable |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrldt:hypercubeItem |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Federal Income Tax Note [Table] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Table of federal income tax note for schedule of investments. The federal income tax note may be qualified for security investments, non-security investments and/or for the combination of security and non-security investments. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| elementCreationTaxonomyVersion | 2009 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| SourceName | SEC Simplification | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2020 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2019-10 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2019-07 | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2009/role/commonPracticeRef |
| Topic | 946 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 10 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | S99 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 3 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Subparagraph | (SX 210.6-03(h)(2)) | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://asc.fasb.org/extlink&oid=123726495&loc=d3e600178-122990 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:InvestmentTypeAxis | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote | |
us-gaap:InvestmentsOwnedFederalIncomeTaxNoteLineItems | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote | |
dei:LegalEntityAxis | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable | |
us-gaap:InvestmentTypeAxis | hypercube-dimension | http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:FederalIncomeTaxNoteTextBlock | parent-child | http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNote | |
us-gaap:InvestmentsOwnedFederalIncomeTaxNoteLineItems | all | http://fasb.org/us-gaap/role/disclosure/InvestmentsFederalTaxNoteFederalIncomeTaxNoteTable |