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v3.25.4

Organization - Additional Information (Detail) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 CreationUnit shares | Dec. 31, 2024 shares
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |
General shares, shares issued | 40 | 40
Treasury obligation measurement maximum maturity period | 12 months |
Minimum number of Creation Units that can be purchased | CreationUnit | 1 |
Number of shares issued per Creation Unit | 50,000 |
Invesco Capital Management LLC [Member] |  |
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items] |  |
Purchase agreement transaction date | Feb. 23, 2015 |

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