Maximum amount of credit spread for open credit default swaps sold.

No definition available.

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- Definition

Minimum amount of credit spread for open credit default swaps sold.

+ References

No definition available.

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- Definition

Derivative asset number of instrument settled.

+ References

No definition available.

+ Details

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- Definition

Number of contracts settled.

+ References

No definition available.

+ Details

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- Definition

Number of contracts traded.

+ References

No definition available.

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- Definition

Number of open credit default swap agreements.

+ References

No definition available.

+ Details

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- Definition

Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

+ References

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-Topic 210
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-Section 55
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payments on the derivative liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Topic 815
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Period Type:	instant

- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Nominal or face amount used to calculate payment on derivative.

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- Details

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- Details

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- Details

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- Details

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Derivative Financial Instruments and Concentrations of Credit Risk - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2020 USD ($) Contract	Mar. 31, 2019 Contract	Dec. 31, 2019 USD ($)
Credit Default Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Basis points, Maximum	44.00%
Basis points, Minimum	281.00%
Cash collateral	$ 1,766,325		$ 3,044,358
Number of open credit default agreements \| Contract	0
Swap Agreements [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Maturity date range for open credit default swaps	Dec. 20, 2024
Man-AHL Diversified Trading Company L.P. [Member] \| Swap Agreements [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cash collateral	$ 0		0
Number of swap contracts \| Contract	635	394
Notional value	$ 49,060,585
Notional value			243,523,554
Man-AHL Diversified Trading Company L.P. [Member] \| Futures Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cash collateral	$ 0		0
Exchange-traded \| Contract	22,338	25,424
Man-AHL Diversified Trading Company L.P. [Member] \| Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cash collateral	$ 0		0
Number of forward contracts, settled \| Contract	65,236	50,551
Notional value	$ 2,042,725,349
Man-AHL Diversified Trading Company L.P. [Member] \| Forward Contracts [Member] \| Previously Reported [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional value			$ 2,674,274,863