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Derivatives - Fair Values of Derivatives Reported on Condensed Consolidated Statements of Financial Condition (Detail) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Derivatives Fair Value [Line Items] |  |  |
Derivative Assets, Fair Value |  | $ 5,309 | $ 14,783
Derivative Assets, Notional |  | 270,401 | 325,129
Derivative Liabilities, Fair Value |  | 369,770 | 327,390
Derivative Liabilities, Notional |  | 696,318 | 479,122
Derivative Assets, Fair value, Amounts not netted, Cash collateral | [1] | (581) |
Derivative Assets, Fair Value, Total |  | 3,410 | 14,554
Derivative Liabilities, Fair Value, Total |  | 368,452 | 327,160
Forward Foreign Currency Exchange Rate Contracts [Member] |  |  |
Derivatives Fair Value [Line Items] |  |  |
Derivative Assets, Fair Value |  | 1,980 | 1,356
Derivative Assets, Notional |  | 200,158 | 170,103
Derivative Liabilities, Fair Value |  | 1,489 | 921
Derivative Liabilities, Notional |  | 232,388 | 128,098
Derivative Assets, Fair Value, Counterparty and cash collateral netting |  | (575) | (157)
Derivative Liabilities, Fair Value, Counterparty and cash collateral netting |  | (575) | (158)
Total Return Swaps and Other [Member] |  |  |
Derivatives Fair Value [Line Items] |  |  |
Derivative Assets, Fair Value |  | 3,329 | 13,427
Derivative Assets, Notional |  | 70,243 | 155,026
Derivative Liabilities, Fair Value |  | 747 | 72
Derivative Liabilities, Notional |  | 74,890 | 1,398
Derivative Assets, Fair Value, Counterparty and cash collateral netting |  | (743) | (72)
Derivative Liabilities, Fair Value, Counterparty and cash collateral netting |  | (743) | (72)
LGAC Warrants [Member] |  |  |
Derivatives Fair Value [Line Items] |  |  |
Derivative Liabilities, Fair Value |  |  | 115
Derivative Liabilities, Notional |  |  | 11,500
LFI and Other Similar Deferred Compensation Arrangements [Member] |  |  |
Derivatives Fair Value [Line Items] |  |  |
Derivative Liabilities, Fair Value |  | 367,534 | 326,282
Derivative Liabilities, Notional |  | 389,040 | 338,126
Net derivatives in "other assets" and "other liabilities" [Member] |  |  |
Derivatives Fair Value [Line Items] |  |  |
Derivative Assets, Fair Value, Counterparty and cash collateral netting |  | 3,991 | 14,554
Derivative Liabilities, Fair Value, Counterparty and cash collateral netting |  | $ 368,452 | $ 327,160
[1] | Amounts are subject to master netting arrangements but do not meet the criteria for netting on the condensed consolidated statements of financial condition under U.S. GAAP. For some counterparties, the collateral amounts of securities and cash collateral pledged may exceed the derivative assets and derivative liabilities balances. Where this is the case, the total amount reported is limited to the net derivative assets and net derivative liabilities balances with that counterparty.

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- Definition Amount of counterparty and cash collateral netting offset against gross derivative asset. + References No definition available. + Details
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- Definition Derivative fair value of derivative liability amount offset against counterparty and cash collateral netting. + References No definition available. + Details
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