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Fair Value Measurements - Summary of Unobservable Inputs (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Cash payment for obligation | $ 4,600 |  |
Re-sign broker dealers |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Contingent consideration |  | $ 182 | $ 4,232
Re-sign broker dealers | Maximum |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Contingent consideration |  | 207 | 4,826
Deposit program growth |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Contingent consideration |  | 11,568 | 11,568
Deposit program growth | Maximum |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Contingent consideration |  | $ 12,500 | $ 12,500
Probability of Achievement | Re-sign broker dealers |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Measurement input |  | 0.990 | 0.990
Probability of Achievement | Deposit program growth |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Measurement input |  | 1.000 | 1.000
Payment Term (in years) | Re-sign broker dealers |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Payment Term (in years) |  | 10 months 17 days | 1 year 10 months 17 days
Payment Term (in years) | Deposit program growth |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Payment Term (in years) |  | 6 months | 1 year
Discount Rate | Re-sign broker dealers |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Measurement input |  | 0.0640 | 0.0640
Discount Rate | Deposit program growth |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Measurement input |  | 0.0640 | 0.0640

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