XML 36 R26.htm IDEA: XBRL DOCUMENT
v3.25.3

Service Providers and Related Party Agreements - Additional Information) (Details) | 15 Months Ended
--- | ---
Sep. 30, 2025
Related Party Transactions [Abstract] |
Sponsor fee per annum on daily net assets | 0.25%
Limited liability company formation state | Delaware
Limited liability company formation date | Feb. 07, 2003

X
- Definition Management fee per annum of daily net assets. + References No definition available. + Details
Name: | qeth_ManagementFeePerAnnumOfDailyNetAssets
Namespace Prefix: | qeth_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Date the limited liability company (LLC) or limited partnership (LP) was formed, in YYYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition State in which the limited liability company or limited partnership was organized. + References No definition available. + Details
Name: | us-gaap_LimitedLiabilityCompanyOrLimitedPartnershipBusinessFormationState
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RelatedPartyTransactionsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration