v3.26.3
Derivative Financial Instruments and Concentrations of Credit Risk - Schedule of Additional Disclosures Regarding Offsetting of Derivative Liabilities (Detail) - Man-AHL Diversified Trading Company L.P. [Member] - USD ($)
Sep. 30, 2026
Dec. 31, 2025
Swap Agreements [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities $ 669,987  
Gross Amount Offset in the Statements of Financial Condition, Liability (49,272)  
Net Amounts of Liabilities Presented in the Statements of Financial Condition 620,715  
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0  
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged (196,229)  
Net Amount, Liability 424,486  
Swap Agreements [Member] | Goldman Sachs [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 196,229  
Gross Amount Offset in the Statements of Financial Condition, Liability 0  
Net Amounts of Liabilities Presented in the Statements of Financial Condition 196,229  
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0  
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged (196,229)  
Net Amount, Liability 0  
Swap Agreements [Member] | J.P. Morgan Chase [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 407,859  
Gross Amount Offset in the Statements of Financial Condition, Liability (49,272)  
Net Amounts of Liabilities Presented in the Statements of Financial Condition 358,587  
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0  
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0  
Net Amount, Liability 358,587  
Swap Agreements [Member] | Barclays [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 65,899  
Gross Amount Offset in the Statements of Financial Condition, Liability 0  
Net Amounts of Liabilities Presented in the Statements of Financial Condition 65,899  
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0  
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0  
Net Amount, Liability 65,899  
Forward Contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 7,021,360 $ 3,569,661
Gross Amount Offset in the Statements of Financial Condition, Liability (6,558,441) (3,569,661)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 462,919 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 462,919 0
Forward Contracts [Member] | Citigroup [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 2,053,000 778,825
Gross Amount Offset in the Statements of Financial Condition, Liability (1,606,235) (778,825)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 446,765 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 446,765 0
Forward Contracts [Member] | BNP Paribas [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 545,937 181,299
Gross Amount Offset in the Statements of Financial Condition, Liability (545,937) (181,299)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 0 0
Forward Contracts [Member] | BNY Mellon Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 4,858  
Gross Amount Offset in the Statements of Financial Condition, Liability (4,858)  
Net Amounts of Liabilities Presented in the Statements of Financial Condition 0  
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0  
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0  
Net Amount, Liability 0  
Forward Contracts [Member] | J.P. Morgan Chase [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 557,620 80,008
Gross Amount Offset in the Statements of Financial Condition, Liability (541,466) (80,008)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 16,154 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 16,154 0
Forward Contracts [Member] | HSBC [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 2,834,122 1,873,431
Gross Amount Offset in the Statements of Financial Condition, Liability (2,834,122) (1,873,431)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 0 0
Forward Contracts [Member] | Natwest [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 1,025,823 656,098
Gross Amount Offset in the Statements of Financial Condition, Liability (1,025,823) (656,098)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 0 0
Futures Contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 2,327,610 1,585,982
Gross Amount Offset in the Statements of Financial Condition, Liability (2,327,610) (1,585,982)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 0 0
Futures Contracts [Member] | Goldman Sachs [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 132,485 68,823
Gross Amount Offset in the Statements of Financial Condition, Liability (132,485) (68,823)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 0 0
Futures Contracts [Member] | J.P. Morgan Chase [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 802,285 732,200
Gross Amount Offset in the Statements of Financial Condition, Liability (802,285) (732,200)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability 0 0
Futures Contracts [Member] | Bank of America Merrill Lynch [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Liabilities 1,392,840 784,959
Gross Amount Offset in the Statements of Financial Condition, Liability (1,392,840) (784,959)
Net Amounts of Liabilities Presented in the Statements of Financial Condition 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Liability 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Pledged 0 0
Net Amount, Liability $ 0 $ 0