Investments in Affiliates - Additional Information (Detail) - USD ($)		6 Months Ended
		Jun. 30, 2022	Dec. 31, 2021
Investments In And Advances To Affiliates [Line Items]
Treasury obligation measurement maximum maturity period		12 months
United States Treasury Obligations, at value		$ 118,067,526	$ 37,999,954
US Treasury and Government [Member]
Investments In And Advances To Affiliates [Line Items]
United States Treasury Obligations, at value	[1]	$ 118,067,526	$ 37,999,954
US Treasury and Government [Member] | Affiliated Investments [Member]
Investments In And Advances To Affiliates [Line Items]
Treasury obligation measurement minimum maturity period		1 month
Treasury obligation measurement maximum maturity period		12 months
Minimum [Member] | US Treasury and Government [Member] | Affiliated Investments [Member]
Investments In And Advances To Affiliates [Line Items]
United States Treasury Obligations, at value		$ 300,000,000

[1] Security may be traded on a discount basis. The interest rate shown represents the discount rate at the most recent auction date of the security prior to period end.