XML 49 R34.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Derivative Instruments - Summary of Average Monthly Notional Value of Future Contracts Held (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Weighted Average [Member] | Currency Futures Contracts [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Average Notional Value - Short | $ (58,543,377) | $ (79,117,717) | $ (61,606,439) | $ (85,127,891)

X
- Definition Derivative short notional amount. + References No definition available. + Details
Name: | udn_DerivativeShortNotionalAmount
Namespace Prefix: | udn_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=udn_CurrencyContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |