Additional Valuation Information - Summary of the Tiered Valuation Input Levels (Detail) - USD ($)	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations	$ 293,540,679	$ 342,956,644
Exchange-Traded Fund	119,581,885	119,734,949
Money Market Mutual Fund	287,780,331	248,080,509
Total Investments in Securities	700,902,895	710,772,102
Commodity Futures Contracts, Appreciation	7,935,283	15,443,843
Commodity Futures Contracts, Depreciation	(64,305,875)	(32,743,090)
Commodity Futures Contracts	(56,370,592)	(17,299,247)
Total Investments	644,532,303	693,472,855
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Exchange-Traded Fund	119,581,885	119,734,949
Money Market Mutual Fund	287,780,331	248,080,509
Total Investments in Securities	407,362,216	367,815,458
Commodity Futures Contracts, Appreciation	7,935,283	15,443,843
Commodity Futures Contracts, Depreciation	(64,305,875)	(32,743,090)
Commodity Futures Contracts	(56,370,592)	(17,299,247)
Total Investments	350,991,624	350,516,211
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations	293,540,679	342,956,644
Total Investments in Securities	293,540,679	342,956,644
Total Investments	$ 293,540,679	$ 342,956,644