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Derivatives - Summary of Gains and (Losses) on Derivative Contracts (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Principal transactions |  |
Gain (loss), net on derivative contract | $ 19,442 | $ 19,210 | $ 11,266
FX/commodities options |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Gain (loss), net on derivative contract | 230 | 331 | 225
FX swaps |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Gain (loss), net on derivative contract | 2,619 | 2,466 | 182
Interest rate swaps |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Gain (loss), net on derivative contract | 3,454 | 25 | 0
Futures |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Gain (loss), net on derivative contract | 13,139 | 16,388 | 10,902
Forwards |  |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |  |
Gain (loss), net on derivative contract | $ 0 | $ 0 | $ (43)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4A + Details
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- Definition Indicates line item in statement of income or comprehensive income that includes gain (loss) from derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480434/815-10-50-4A + Details
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