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Derivatives - Offsetting of Derivatives Instruments (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Offsetting Assets [Line Items] |  |
Assets, Gross Amounts | $ 73,974 | $ 42,252
Assets, Gross Amounts Offset | (71,095) | (41,321)
Assets, Net Amounts Presented in the Statements of Financial Condition | 2,879 | 931
Liabilities, Gross Amounts | 73,944 | 42,781
Liabilities, Gross Amounts Offset | (71,095) | (41,321)
Liabilities, Net Amounts Presented in the Statements of Financial Condition | 2,849 | 1,460
FX/commodities options |  |
Offsetting Assets [Line Items] |  |
Assets, Gross Amounts |  | 74
Assets, Gross Amounts Offset |  | 0
Assets, Net Amounts Presented in the Statements of Financial Condition |  | 74
FX swaps |  |
Offsetting Assets [Line Items] |  |
Assets, Gross Amounts | 3,025 | 583
Assets, Gross Amounts Offset | (538) | (21)
Assets, Net Amounts Presented in the Statements of Financial Condition | 2,487 | 562
Liabilities, Gross Amounts | 2,028 | 340
Liabilities, Gross Amounts Offset | (538) | (21)
Liabilities, Net Amounts Presented in the Statements of Financial Condition | 1,490 | 319
Futures |  |
Offsetting Assets [Line Items] |  |
Assets, Gross Amounts | 70,497 | 41,257
Assets, Gross Amounts Offset | (70,497) | (41,257)
Assets, Net Amounts Presented in the Statements of Financial Condition | 0 | 0
Liabilities, Gross Amounts | 71,437 | 42,183
Liabilities, Gross Amounts Offset | (70,497) | (41,257)
Liabilities, Net Amounts Presented in the Statements of Financial Condition | 940 | 926
Forwards |  |
Offsetting Assets [Line Items] |  |
Assets, Gross Amounts | 452 | 338
Assets, Gross Amounts Offset | (60) | (43)
Assets, Net Amounts Presented in the Statements of Financial Condition | 392 | 295
Liabilities, Gross Amounts | 479 | 258
Liabilities, Gross Amounts Offset | (60) | (43)
Liabilities, Net Amounts Presented in the Statements of Financial Condition | $ 419 | $ 215

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