Additional Valuation Information - Summary of the Tiered Valuation Input Levels (Detail) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations	$ 197,911,057	$ 294,000,317
Money Market Mutual Fund	134,166,072	111,534,057
Total Investments in Securities	332,077,129	405,534,374
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	4,940,914	(4,579,458)
Total Investments	337,018,043	400,954,916
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Mutual Fund	134,166,072	111,534,057
Total Investments in Securities	134,166,072	111,534,057
Commodity Futures Contracts, Unrealized Appreciation (Depreciation)	4,940,914	(4,579,458)
Total Investments	139,106,986	106,954,599
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations	197,911,057	294,000,317
Total Investments in Securities	197,911,057	294,000,317
Total Investments	$ 197,911,057	$ 294,000,317