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Revenues from Contracts with Customers - Summary of Geographic Distribution of Revenue (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Revenues | $ 78,112 | $ 63,749 | $ 225,143 | $ 184,260
UNITED STATES |  |  |  |
Revenues | 46,523 | 34,018 | 131,744 | 105,517
JERSEY |  |  |  |
Revenues | 28,724 | 28,636 | 85,953 | 75,313
IRELAND |  |  |  |
Revenues | $ 2,865 | $ 1,095 | $ 7,446 | 3,065
CANADA |  |  |  |
Revenues |  |  |  | $ 365

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- Definition Revenues from operations, excluding interest and dividend income. Includes revenues from the following sources: investment banking (underwriting and financial advisory), principal transactions (sales and trading, and investment gains and losses), commissions, asset management, and investment advisory and other services. + References No definition available. + Details
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