Investments in Affiliates - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Investments In And Advances To Affiliates [Line Items]
United States Treasury Obligations, Value	$ 55,916,139	$ 146,181,951
Treasury obligation measurement maximum maturity period	12 months
United States Treasury Obligations [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
United States Treasury Obligations [Member] | Affiliated Investments [Member] | Minimum [Member]
Investments In And Advances To Affiliates [Line Items]
United States Treasury Obligations, Value	$ 300,000,000