IndexInvestment Owned, Pledged [Fixed List]
| Name | InvestmentOwnedPledgedFlag |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | us-types:investmentPledgedItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Indicates that some or all of the investment is pledged as collateral. This flag has three options: "Investment Pledged", "Entire Investment Pledged" and "Partial Investment Pledged". The first option, "Investment Pledged", does not distinguish if all or part of the investment is pledged. The other options indicate if all of the holding or only a part of the holding is pledged. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Investment Owned, Pledged [Fixed List] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |