Cash and Securities Segregated Under Federal Regulations and Other Requirements |
9 Months Ended |
|---|---|
Sep. 30, 2026 | |
| Broker-Dealer [Abstract] | |
| Cash and Securities Segregated Under Federal Regulations and Other Requirements | Cash and Securities Segregated Under Federal Regulations and Other Requirements As of September 30, 2026, the Company maintained cash and U.S. Treasury securities in special reserve bank accounts for the exclusive benefit of brokerage customers pursuant to Rule 15c3-3 of the Securities Exchange Act of 1934. The amounts of cash and U.S. Treasury Bills segregated for regulatory purposes were $200.0 million and $379.2 million, respectively, as of September 30, 2026. The amount of U.S. Treasury Bills segregated for regulatory purposes were $498.6 million, as of December 31, 2025.
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