v3.26.3
STATEMENTS OF CASH FLOWS - USD ($)
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Man-AHL Diversified I L.P [Member]    
Cash Flows from Operating Activities    
Net income/(loss) $ 12,025,925 $ (4,121,983)
Adjustments to reconcile net income/(loss) to net cash provided by/(used in) operating activities:    
Sales of investments in Man-AHL Diversified Trading Company L.P. 9,949,675 13,103,623
Net realized (gains)/losses and change in unrealized (appreciation)/depreciation on trading activities and net investment income/(loss) allocated from investment in Man-AHL Diversified Trading Company L.P. (14,580,590) 1,675,974
Changes in operating assets and liabilities:    
Increase/(decrease) in management fees payable 11,279 (37,130)
Increase/(decrease) in servicing fees payable 3,771 (12,380)
Increase/(decrease) in accrued expenses and other liabilities 68,191 79,009
Net cash provided by/(used in) operating activities 7,478,251 10,687,113
Cash Flows from Financing Activities    
Proceeds from subscriptions 0 62,121
Payments on redemptions (net of change in redemptions payable) (7,478,251) (10,749,234)
Net cash provided by/(used in) financing activities (7,478,251) (10,687,113)
NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH 0 0
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH - Beginning of the period 0 0
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH - End of the period 0 0
Man-AHL Diversified Trading Company L.P. [Member]    
Cash Flows from Operating Activities    
Net income/(loss) 32,502,276 (3,219,634)
Adjustments to reconcile net income/(loss) to net cash provided by/(used in) operating activities:    
Purchases of investments in securities (255,357,417) (214,115,341)
Amortization of premiums/accretion of discount on securities and net realized (gain)/loss on securities (2,983,481) (3,345,971)
Sales/maturities of investments in securities 241,965,279 240,688,726
Net change in unrealized trading (appreciation)/depreciation on investments in securities 87,687 47,454
Net change in unrealized trading (appreciation)/depreciation on open contracts/agreements 4,667,886 1,143,227
Changes in operating assets and liabilities:    
(Increase)/decrease in due from brokers (670,973) (1,056,046)
(Increase)/decrease in interest receivable (8,817) 9,735
(Increase)/decrease in net premiums paid on credit default swap agreements 51,355 (2,370,587)
Increase/(decrease) in net premiums received on credit default swap agreements 1,669,491 (475,986)
Increase/(decrease) in due to brokers 679,875 1,134,600
Increase/(decrease) in collateral balances - due to broker (1,456,955) 5,085,570
Increase/(decrease) in accrued expenses and other liabilities 1,834 (142,076)
Net cash provided by/(used in) operating activities 21,148,040 23,383,671
Cash Flows from Financing Activities    
Proceeds from subscriptions 1,257,000 1,229,999
Payments on redemptions (net of change in redemptions payable) (26,437,596) (22,192,066)
Net cash provided by/(used in) financing activities (25,180,596) (20,962,067)
NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH (4,032,556) 2,421,604
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH - Beginning of the period 43,392,651 36,618,643
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH - End of the period 39,360,095 39,040,247
Supplemental Cash Flow Elements [Abstract]    
Cash paid for interest during the period $ 217,904 $ 224,417