IndexInvestment Sold, Not yet Purchased, Unrestricted, Carrying Value Per Unit at Date When Enforceable Right to Acquire was Obtained (Deprecated 2020-01-31)
| Name | InvestmentSoldNotYetPurchasedUnrestrictedCarryingValuePerUnitAtDateWhenEnforceableRightToAcquireWasObtained |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | srt-types:perUnitItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| The carrying value per unit of investment of unrestricted investment of the same issue as the restricted investment during the preceding year at the date on which an enforceable right to acquire the investments was obtained. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Investment Sold, Not yet Purchased, Unrestricted, Carrying Value Per Unit at Date When Enforceable Right to Acquire was Obtained (Deprecated 2020-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |