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Derivative Instruments - Summary of Average Monthly and Quarterly Notional Value of Future Contracts Outstanding (Detail) - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Commodity Futures Contract [Member] |  |  |
Derivative [Line Items] |  |  |
Average Notional Value | $ 156,166,473 | $ 151,038,898 | $ 105,202,792

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- 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
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