Financial Highlights - Schedule of Net Asset Value Per Share (Detail) - $ / shares |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
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| Net Asset Value | ||
| Net asset value per Share, beginning of period | $ 21.35 | $ 22.05 |
| Net realized and change in unrealized gain (loss) on United States Treasury Obligations, Affiliated Investments and Commodity Futures Contracts | 0.96 | 0.68 |
| Net investment income (loss) | 0.19 | 0.25 |
| Net income (loss) | 1.15 | 0.93 |
| Net asset value per Share, end of period | 22.5 | 22.98 |
| Market value per Share, beginning of period | 21.38 | 22.06 |
| Market value per Share, end of period | $ 22.52 | $ 22.97 |
| Ratio to average Net Assets | ||
| Net investment income (loss) | 3.40% | 4.52% |
| Expenses, after waivers | 0.83% | 0.83% |
| Expenses, prior to waivers | 0.89% | 0.88% |
| Total Return, at net asset value | 5.39% | 4.22% |
| Total Return, at market value | 5.33% | 4.13% |
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- Definition Average net assets to expenses prior to waivers. No definition available.
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- Definition Market value per share. No definition available.
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- Definition Return at market value. No definition available.
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- Definition Percentage, after deduction of voluntary fee waiver, of expense to average net assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- References No definition available.
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- Definition Per share or unit amount of realized and unrealized gain (loss) on investment. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Per share or unit amount of investment income (loss) and realized and unrealized gain (loss) on investment. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Per share or unit amount, after investment expense, of dividend and interest investment income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Percentage of investment income (loss) to average net assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Percentage increase (decrease) in fund net asset value, assuming reinvestment of dividends and capital gain distributions. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Net asset value per share or per unit of investments in certain entities that calculate net asset value per share. Includes, but is not limited to, by unit, membership interest, or other ownership interest. Investment includes, but is not limited to, investment in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. Excludes fair value disclosure. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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