Segment Reporting - Narrative (Details) - Revenue Benchmark - Customer Concentration Risk	9 Months Ended	12 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Webull \| Service revenue
Concentration Risk [Line Items]
Concentration risk		74.00%
Bank of America \| Sales Channel, Loyalty Redemption Platform
Concentration Risk [Line Items]
Concentration risk		16.00%
Public Platform LLC ("Public") \| Crypto Services Revenue
Concentration Risk [Line Items]
Concentration risk	18.00%	9.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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