Additional Valuation Information - Summary of the Tiered Valuation Input Levels (Detail) - USD ($)		Mar. 31, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations		$ 39,949,853	$ 37,999,954
Exchange-Traded Fund		10,048,360	10,055,500
Money Market Mutual Fund		181,661,958	61,746,467
Total Investments in Securities		231,660,171	109,801,921
Commodity Futures Contracts, Appreciation	[1]	46,651,978	6,161,107
Total Other Investments			6,161,107
Total Investments		278,312,149	115,963,028
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Exchange-Traded Fund		10,048,360	10,055,500
Money Market Mutual Fund		181,661,958	61,746,467
Total Investments in Securities		191,710,318	71,801,967
Commodity Futures Contracts, Appreciation	[1]	46,651,978	6,161,107
Total Other Investments			6,161,107
Total Investments		238,362,296	77,963,074
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations		39,949,853	37,999,954
Total Investments in Securities		39,949,853	37,999,954
Total Investments		$ 39,949,853	$ 37,999,954

[1] Unrealized appreciation (depreciation).