IndexInvestments in and Advance to Affiliate, Noncash Dividend [true false] (Deprecated 2020-01-31)
| Name | InvestmentsInAndAdvancesToAffiliatesNoncashDividendsFlag |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:booleanItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Indicates a non-cash dividend. Explain the circumstances in the "Schedule of Investments, Investment Notes". | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Investments in and Advance to Affiliate, Noncash Dividend [true false] (Deprecated 2020-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |