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Fair Value of Financial Assets and Liabilities - Fair Value Hierarchy of Financial Assets and Liabilities under U.S. GAAP Guidance (Detail) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Net amounts of recognized assets |  |
Marketable securities | $ 293 | $ 406
Securities owned—Government debt | 37,918 | 40,602
Securities owned—Equities | 787 | 235
Securities owned—Corporate bonds | 445 | 1
Forwards | 837 | 392
FX swaps | 9,582 | 2,487
Futures | 0 | 0
Total | 49,862 | 44,123
Net amounts of recognized Liabilities |  |
FX swaps | 6,083 | 1,490
Forwards | 656 | 419
Futures | 478 | 940
Contingent consideration | 22,791 | 29,756
Total | 30,008 | 32,605
Netting and Collateral |  |
Net amounts of recognized assets |  |
Marketable securities | 0 | 0
Securities owned—Government debt | 0 | 0
Securities owned—Equities | 0 | 0
Securities owned—Corporate bonds | 0 | 0
Forwards | (205) | (60)
FX swaps | (663) | (538)
Futures | (103,886) | (70,497)
Total | (104,754) | (71,095)
Net amounts of recognized Liabilities |  |
FX swaps | (663) | (538)
Forwards | (205) | (60)
Futures | (103,886) | (70,497)
Contingent consideration | 0 | 0
Total | (104,754) | (71,095)
Level 1 |  |
Net amounts of recognized assets |  |
Marketable securities | 293 | 406
Securities owned—Government debt | 37,918 | 40,602
Securities owned—Equities | 787 | 235
Securities owned—Corporate bonds | 0 | 0
Forwards | 0 | 0
FX swaps | 0 | 0
Futures | 0 | 0
Total | 38,998 | 41,243
Net amounts of recognized Liabilities |  |
FX swaps | 0 | 0
Forwards | 0 | 0
Futures | 0 | 0
Contingent consideration | 0 | 0
Total | 0 | 0
Level 2 |  |
Net amounts of recognized assets |  |
Marketable securities | 0 | 0
Securities owned—Government debt | 0 | 0
Securities owned—Equities | 0 | 0
Securities owned—Corporate bonds | 445 | 1
Forwards | 1,042 | 452
FX swaps | 10,245 | 3,025
Futures | 103,886 | 70,497
Total | 115,618 | 73,975
Net amounts of recognized Liabilities |  |
FX swaps | 6,746 | 2,028
Forwards | 861 | 479
Futures | 104,364 | 71,437
Contingent consideration | 0 | 0
Total | 111,971 | 73,944
Level 3 |  |
Net amounts of recognized assets |  |
Marketable securities | 0 | 0
Securities owned—Government debt | 0 | 0
Securities owned—Equities | 0 | 0
Securities owned—Corporate bonds | 0 | 0
Forwards | 0 | 0
FX swaps | 0 | 0
Futures | 0 | 0
Total | 0 | 0
Net amounts of recognized Liabilities |  |
FX swaps | 0 | 0
Forwards | 0 | 0
Futures | 0 | 0
Contingent consideration | 22,791 | 29,756
Total | $ 22,791 | $ 29,756

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