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Revenues from Contracts with Customers - Summary of Geographic Distribution of Revenue (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2021 | [1] | Sep. 30, 2021 | [1] | Jun. 30, 2021 | [1] | Mar. 31, 2021 | [1] | Dec. 31, 2020 | [1] | Sep. 30, 2020 | [1] | Jun. 30, 2020 | [1] | Mar. 31, 2020 | [1] | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Revenues | $ 79,175 | $ 78,112 | $ 75,775 | $ 71,256 | $ 65,651 | $ 63,749 | $ 57,312 | $ 63,200 | $ 304,318 | $ 249,912 | $ 266,528
UNITED STATES |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 179,016 | 142,074 | 170,827
JERSEY |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 114,623 | 103,061 | 88,547
IRELAND |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 10,679 | 4,412 | 4,714
CANADA |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 0 | $ 365 | $ 2,440
[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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