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Revenues from Contracts with Customers - Summary of Geographic Distribution of Revenue (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Revenues |  | $ 78,368 | $ 71,256
UNITED STATES |  |  |
Revenues |  | 46,229 | 40,699
JERSEY |  |  |
Revenues | [1] | 28,598 | 28,416
IRELAND |  |  |
Revenues |  | $ 3,541 | $ 2,141
[1] | Advisory fees previously reported have been revised due to an immaterial error correction. These revisions had no effect on previously reported net income. See Note 2 for additional information.

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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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