Segment and Geographic Information (Tables) |
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Mar. 31, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Information Regarding Revenue from External Customers, Significant Segment Expenses and Consolidated Net Income | Information regarding revenues from external customers, other revenues, significant segment expenses, other segment items and Consolidated net income (loss) is as follows:
______________________________________ 1 For the three months ended March 31, 2026 and 2025, Interest income was $10.6 million and $11.6 million, respectively. 2 Other segment items include Occupancy and equipment expense, Fees to related parties expense, Professional and consulting fees expense, Communications expense, Selling and promotion expense, Commissions and floor brokerage expense, Interest expense, Other expenses, Gains (losses) on divestitures and sales of investments, Gains (losses) on equity method investments, Other income (loss), and Provision (benefit) for income taxes, each of which are presented on the Company’s unaudited Condensed Consolidated Statements of Operations. Also included in Other segment items is Fixed asset depreciation and intangible asset amortization. For the three months ended March 31, 2026 and 2025, Fixed asset depreciation and intangible asset amortization was $25.8 million and $21.9 million, respectively.
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| Schedule of Geographic Information Regarding Revenues | Information regarding revenues is as follows (in thousands):
____________________________ 1For the three months ended March 31, 2026 and 2025, the U.K. accounted for 10% or more of total revenues. U.K. revenues for the three months ended March 31, 2026 and 2025 were $363.0 million and $228.2 million, respectively. 2For the three months ended March 31, 2026 and 2025, the U.S. accounted for 10% or more of total revenues. U.S. revenues for the three months ended March 31, 2026 and 2025 were $298.1 million and $229.5 million, respectively.
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| Schedule of Information Regarding Long-Lived Assets in Geographic Areas | Information regarding long-lived assets (defined as: loans, forgivable loans and other receivables from employees and partners, net; fixed assets, net; ROU assets; certain other investments; rent and other deposits; excluding goodwill and other intangible assets, net) in the applicable geographic area is as follows (in thousands):
____________________________ 1As of March 31, 2026 and December 31, 2025, the U.K. accounted for 10% or more of total long-lived assets. U.K. long-lived assets as of March 31, 2026 and December 31, 2025 were $306.2 million and $286.7 million, respectively. 2As of March 31, 2026 and December 31, 2025, the U.S. accounted for 10% or more of total long-lived assets. U.S. long-lived assets as of March 31, 2026 and December 31, 2025 were $311.4 million and $289.7 million, respectively.
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