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Additional Valuation Information - Summary of the Tiered Valuation Input Levels (Detail) - USD ($) | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
United States Treasury Obligations |  | $ 147,708,743
Money Market Mutual Fund | $ 144,958,775 | 279,113,690
Total Investments in Securities |  | 426,822,433
Currency Futures Contracts | 261,850 | 7,304,316
Total Investments | 145,220,625 | 434,126,749
Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money Market Mutual Fund | 144,958,775 | 279,113,690
Total Investments in Securities |  | 279,113,690
Currency Futures Contracts | 261,850 | 7,304,316
Total Investments | $ 145,220,625 | 286,418,006
Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
United States Treasury Obligations |  | 147,708,743
Total Investments in Securities |  | 147,708,743
Total Investments |  | $ 147,708,743

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- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479035/940-320-45-2 + Details
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