Derivative Finanicial Instruments and Concentrations of Credit Risk - Additional Information (Detail)	12 Months Ended
Dec. 31, 2021 USD ($) Contract	Dec. 31, 2020 USD ($) Contract
Derivative Instruments, Gain (Loss) [Line Items]
Number of open credit default agreements \| Contract	0
Credit Default Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Basis points, Maximum	292.00%	293.00%
Basis points, Minimum	48.00%	48.00%
Cash collateral	$ 6,116,957	$ 668,956
Swap Agreements [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Maturity date range for open credit default swaps	Dec. 20, 2026	Dec. 20, 2025
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	1,532	1,385
Notional value	$ 245,000,000	$ 96,409,493
Man-AHL Diversified Trading Company L.P. [Member] \| Futures Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cash collateral	$ 0	$ 0
Exchange-traded \| Contract	94,336	72,578
Notional value	$ 783,553,575	$ 652,317,267
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	128,715	151,092
Notional value	$ 2,356,720,575	$ 1,436,289,478

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

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- Definition

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

+ References

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- Definition

Derivative asset number of instrument settled.

+ References

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Number of contracts settled.

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Number of contracts traded.

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- Definition

Number of open credit default swap agreements.

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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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- 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.

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- Definition

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

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- Definition

Nominal or face amount used to calculate payment on derivative.

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