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Goodwill (Details) - USD ($) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023
Goodwill [Line Items] |  |
Goodwill | $ 465,697,000 | $ 465,697,000
Goodwill impairment | 0 | $ 0
Rayliant Global Advisors Limited |  |
Goodwill [Line Items] |  |
Equity securities without readily determinable fair values | 109,000,000 |
Equity method investment, difference between carrying amount and underlying equity | $ 101,000,000 |

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