v3.26.3
Derivative Financial Instruments and Concentrations of Credit Risk - Schedule of Additional Disclosures Regarding Offsetting of Derivative Assets (Detail) - Man-AHL Diversified Trading Company L.P. [Member] - USD ($)
Sep. 30, 2026
Dec. 31, 2025
Futures Contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets $ 6,578,870 $ 5,408,798
Gross Amount Offset in the Statements of Financial Condition (2,327,610) (1,585,982)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 4,251,260 3,822,816
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received (3,041,978) (761,453)
Net Amount, Asset 1,209,282 3,061,363
Futures Contracts [Member] | Bank of America Merrill Lynch [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 3,503,257 3,046,528
Gross Amount Offset in the Statements of Financial Condition (1,392,840) (784,959)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 2,110,417 2,261,569
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received (2,110,417) 0
Net Amount, Asset 0 2,261,569
Futures Contracts [Member] | Goldman Sachs [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 1,018,723 1,402,398
Gross Amount Offset in the Statements of Financial Condition (132,485) (68,823)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 886,238 1,333,575
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 (746,752)
Net Amount, Asset 886,238 586,823
Futures Contracts [Member] | J.P. Morgan Chase [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 2,056,890 959,872
Gross Amount Offset in the Statements of Financial Condition (802,285) (732,200)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 1,254,605 227,672
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received (931,561) (14,701)
Net Amount, Asset 323,044 212,971
Forward Contracts [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 7,792,558 8,468,234
Gross Amount Offset in the Statements of Financial Condition (6,558,441) (3,569,661)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 1,234,117 4,898,573
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 0
Net Amount, Asset 1,234,117 4,898,573
Forward Contracts [Member] | J.P. Morgan Chase [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 541,466 1,557,080
Gross Amount Offset in the Statements of Financial Condition (541,466) (80,008)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 0 1,477,072
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 0
Net Amount, Asset 0 1,477,072
Forward Contracts [Member] | BNP Paribas [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 977,444 745,598
Gross Amount Offset in the Statements of Financial Condition (545,937) (181,299)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 431,507 564,299
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 0
Net Amount, Asset 431,507 564,299
Forward Contracts [Member] | BNY Mellon Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 16,531 1,339
Gross Amount Offset in the Statements of Financial Condition (4,858) 0
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 11,673 1,339
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 0
Net Amount, Asset 11,673 1,339
Forward Contracts [Member] | Citigroup [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 1,606,235 1,641,721
Gross Amount Offset in the Statements of Financial Condition (1,606,235) (778,825)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 0 862,896
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 0
Net Amount, Asset 0 862,896
Forward Contracts [Member] | HSBC [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 3,225,042 2,713,002
Gross Amount Offset in the Statements of Financial Condition (2,834,122) (1,873,431)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 390,920 839,571
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 0
Net Amount, Asset 390,920 839,571
Forward Contracts [Member] | Natwest f/k/a Royal Bank of Scotland[Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 1,425,840 1,809,494
Gross Amount Offset in the Statements of Financial Condition (1,025,823) (656,098)
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 400,017 1,153,396
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 0
Net Amount, Asset 400,017 1,153,396
Swap Agreements [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 49,272 348,240
Gross Amount Offset in the Statements of Financial Condition (49,272) 0
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 0 348,240
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 (248,319)
Net Amount, Asset 0 99,921
Swap Agreements [Member] | Barclays [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets   44,084
Gross Amount Offset in the Statements of Financial Condition   0
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition   44,084
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset   0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received   0
Net Amount, Asset   44,084
Swap Agreements [Member] | Goldman Sachs [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets   238,310
Gross Amount Offset in the Statements of Financial Condition   0
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition   238,310
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset   0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received   (238,310)
Net Amount, Asset   0
Swap Agreements [Member] | J.P. Morgan Chase [Member]    
Derivative [Line Items]    
Gross Amounts of Recognized Assets 49,272 65,846
Gross Amount Offset in the Statements of Financial Condition (49,272) 0
Net Amounts of Assets/Liabilities presented in the Statements of Financial Condition 0 65,846
Gross Amounts Not Offset in the Statements of Financial Condition, Financial Instruments, Asset 0 0
Gross Amounts Not Offset in the Statements of Financial Condition, Cash Collateral Received 0 (10,009)
Net Amount, Asset $ 0 $ 55,837