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Segment Information - Reported Revenue and Profit Before Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Revenue |  |
Total revenue | $ (234,530) | $ (213,261)
Income (loss) before income taxes |  |
Income (Loss) before income taxes from continuing operations | 9,625 | (7,025)
Private Client Division |  |
Revenue |  |
Total revenue | (154,094) | (137,389)
Income (loss) before income taxes |  |
Income (Loss) before income taxes from continuing operations | $ 40,162 | 28,762
Asset management fees | 90.00% |
Asset Management |  |
Revenue |  |
Total revenue | $ (17,644) | (18,666)
Income (loss) before income taxes |  |
Income (Loss) before income taxes from continuing operations | $ 3,718 | 3,711
Asset management fees | 10.00% |
Capital markets |  |
Revenue |  |
Total revenue | $ (61,529) | (55,903)
Income (loss) before income taxes |  |
Income (Loss) before income taxes from continuing operations | (6,057) | (12,614)
Corporate/Other |  |
Revenue |  |
Total revenue | (1,263) | (1,303)
Income (loss) before income taxes |  |
Income (Loss) before income taxes from continuing operations | $ (28,198) | $ (26,884)

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