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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 | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Net amounts of recognized assets |  |
Financial instruments owned, at fair value - Domestic government debt | $ 31,141 | $ 31,175
Financial instruments owned, at fair value - Foreign government debt | 14,164 | 7,678
Financial instruments owned, at fair value - Equities | 487 |
Financial instruments owned, at fair value - Equities |  | 466
Netting and Collateral | (75,718) | (66,271)
Assets, net amounts presented in the statements of financial condition | 3,607 | 3,762
Total | 49,399 | 43,081
Net amounts of recognized Liabilities |  |
Netting and Collateral | (75,718) | (66,271)
Liabilities, net amounts presented in the statements of financial condition | 5,756 | 7,633
Contingent consideration | 11,929 | 24,279
Total | 17,685 | 31,912
Assets, gross amounts offset | (75,718) | (66,271)
Goodwill, purchase accounting adjustments | (1,493) |
Trident |  |
Net amounts of recognized Liabilities |  |
Goodwill, purchase accounting adjustments | 2,200 |
Forwards |  |
Net amounts of recognized assets |  |
Netting and Collateral | (50) | (143)
Assets, net amounts presented in the statements of financial condition | 805 | 603
Net amounts of recognized Liabilities |  |
Netting and Collateral | (50) | (143)
Liabilities, net amounts presented in the statements of financial condition | 609 | 569
FX swaps |  |
Net amounts of recognized assets |  |
Netting and Collateral | (793) | (489)
Assets, net amounts presented in the statements of financial condition | 2,674 | 3,134
Net amounts of recognized Liabilities |  |
Netting and Collateral | (793) | (489)
Liabilities, net amounts presented in the statements of financial condition | 5,119 | 5,796
Assets, gross amounts offset | (793) | (489)
Futures |  |
Net amounts of recognized assets |  |
Netting and Collateral | (62,693) | (64,769)
Assets, net amounts presented in the statements of financial condition | 0 | 0
Net amounts of recognized Liabilities |  |
Netting and Collateral | (62,693) | (64,769)
Liabilities, net amounts presented in the statements of financial condition | 28 | 1,268
Interest rate swaps |  |
Net amounts of recognized assets |  |
Netting and Collateral | (12,182) |
Assets, net amounts presented in the statements of financial condition | 128 | 25
Net amounts of recognized Liabilities |  |
Netting and Collateral | (12,182) | (870)
Liabilities, net amounts presented in the statements of financial condition | 0 | 0
Assets, gross amounts offset | (12,182) | (870)
Level 1 |  |
Net amounts of recognized assets |  |
Financial instruments owned, at fair value - Domestic government debt | 31,141 | 31,175
Financial instruments owned, at fair value - Foreign government debt | 0 | 0
Financial instruments owned, at fair value - Equities | 487 |
Financial instruments owned, at fair value - Equities |  | 466
Total | 31,628 | 31,641
Net amounts of recognized Liabilities |  |
Contingent consideration | 0 | 0
Total | 0 | 0
Level 1 | Forwards |  |
Net amounts of recognized assets |  |
Derivative asset | 0 | 0
Net amounts of recognized Liabilities |  |
Derivative liability | 0 | 0
Level 1 | FX swaps |  |
Net amounts of recognized assets |  |
Derivative asset | 0 | 0
Net amounts of recognized Liabilities |  |
Derivative liability | 0 | 0
Level 1 | Futures |  |
Net amounts of recognized assets |  |
Derivative asset | 0 | 0
Net amounts of recognized Liabilities |  |
Derivative liability | 0 | 0
Level 1 | Interest rate swaps |  |
Net amounts of recognized assets |  |
Derivative asset | 0 | 0
Net amounts of recognized Liabilities |  |
Derivative liability | 0 | 0
Level 2 |  |
Net amounts of recognized assets |  |
Financial instruments owned, at fair value - Domestic government debt | 0 | 0
Financial instruments owned, at fair value - Foreign government debt | 14,164 | 7,678
Financial instruments owned, at fair value - Equities | 0 |
Financial instruments owned, at fair value - Equities |  | 0
Total | 93,489 | 77,711
Net amounts of recognized Liabilities |  |
Contingent consideration | 0 | 0
Total | 81,474 | 73,904
Level 2 | Forwards |  |
Net amounts of recognized assets |  |
Derivative asset | 855 | 746
Net amounts of recognized Liabilities |  |
Derivative liability | 659 | 712
Level 2 | FX swaps |  |
Net amounts of recognized assets |  |
Derivative asset | 3,467 | 3,623
Net amounts of recognized Liabilities |  |
Derivative liability | 5,912 | 6,285
Level 2 | Futures |  |
Net amounts of recognized assets |  |
Derivative asset | 62,693 | 64,769
Net amounts of recognized Liabilities |  |
Derivative liability | 62,721 | 66,037
Level 2 | Interest rate swaps |  |
Net amounts of recognized assets |  |
Derivative asset | 12,310 | 895
Net amounts of recognized Liabilities |  |
Derivative liability | 12,182 | 870
Level 3 |  |
Net amounts of recognized assets |  |
Financial instruments owned, at fair value - Domestic government debt | 0 | 0
Financial instruments owned, at fair value - Foreign government debt | 0 | 0
Financial instruments owned, at fair value - Equities | 0 |
Financial instruments owned, at fair value - Equities |  | 0
Total | 0 | 0
Net amounts of recognized Liabilities |  |
Contingent consideration | 11,929 | 24,279
Total | 11,929 | 24,279
Level 3 | Forwards |  |
Net amounts of recognized assets |  |
Derivative asset | 0 | 0
Net amounts of recognized Liabilities |  |
Derivative liability | 0 | 0
Level 3 | FX swaps |  |
Net amounts of recognized assets |  |
Derivative asset | 0 | 0
Net amounts of recognized Liabilities |  |
Derivative liability | 0 | 0
Level 3 | Futures |  |
Net amounts of recognized assets |  |
Derivative asset | 0 | 0
Net amounts of recognized Liabilities |  |
Derivative liability | 0 | 0
Level 3 | Interest rate swaps |  |
Net amounts of recognized assets |  |
Derivative asset | 0 | 0
Net amounts of recognized Liabilities |  |
Derivative liability | $ 0 | $ 0

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