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Investments in Affiliates - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Investments In And Advances To Affiliates [Line Items]    
Treasury obligation measurement maximum maturity period 12 months  
United States Treasury Obligations, Value $ 54,072,308 $ 53,851,960
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  
Minimum [Member] | United States Treasury Obligations [Member] | Affiliated Investments [Member]    
Investments In And Advances To Affiliates [Line Items]    
United States Treasury Obligations, Value $ 300,000,000