STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 7,989,235	$ 255,196
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Purchases of investments in Man-AHL Diversified Trading Company L.P.	(710,452)	(57,657)
Sales of investments in Man-AHL Diversified Trading Company L.P.	3,598,729	9,603,918
Net gain (loss) on trading activities and net investment loss allocated from investment in Man-AHL Diversified Trading Company L.P.	(9,013,224)	(1,314,435)
Changes in assets and liabilities:
Management fees payable	14,606	(20,800)
Servicing fees payable	4,906	(6,930)
Accrued expenses and other liabilities	106,676	72,433
Net cash provided by operating activities	1,990,476	8,531,725
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from subscriptions	2,601,833	41,699
Payments on redemptions	(4,592,309)	(8,573,424)
Net cash used in financing activities	(1,990,476)	(8,531,725)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	0	0
CASH AND CASH EQUIVALENTS - Beginning of period	0	0
CASH AND CASH EQUIVALENTS - End of period	0	0
Man-AHL Diversified Trading Company L.P. [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	11,856,400	1,664,760
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Purchases of investments in securities		(70,059,018)
Amortization of premium/discount on securities	(312,614)	(527,906)
Sales of investments in securities		81,999,500
Net change in unrealized trading (gains) losses on investments in securities	(137,250)	(45,710)
Net change in unrealized trading (gains) losses on open contracts/agreements	(1,367,282)	1,059,205
Changes in assets and liabilities:
Due from brokers	14,872,612	(1,089,779)
Interest receivable		(16,654)
Net premiums paid on credit default swap agreements	6,529,278	(4,721,120)
Net premiums received on credit default swap agreements	(159,537)	(1,171,839)
Due to brokers	2,098,601
Accrued expenses and other liabilities	105,605	23,815
Net cash provided by operating activities	33,485,813	7,115,254
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from subscriptions	4,334,099	57,658
Payments on redemptions	(3,732,698)	(10,977,443)
Net cash used in financing activities	601,401	(10,919,785)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	34,087,214	(3,804,531)
CASH AND CASH EQUIVALENTS - Beginning of period	1,460,824	7,258,493
CASH AND CASH EQUIVALENTS - End of period	35,548,038	3,453,962
SUPPLEMENTAL DISCLOSURE OF CASH ACTIVITY:
Cash paid for interest during the period	$ 81,472	$ 43,698