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Goodwill and Other Intangible Assets, Net - Components of Goodwill and Other Intangible Assets, Net (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | $ 865,180 | $ 819,917 | $ 740,743
Intangibles : |  |  |
Total intangibles | 349,718 | 314,285 |
Total goodwill and other intangibles assets | 1,214,898 | 1,134,202 |
Accumulated amortization: |  |  |
Total accumulated amortization | (206,294) | (182,500) |
Goodwill and other intangible assets, net | 1,008,604 | 951,702 |
Client lists |  |  |
Intangibles : |  |  |
Total intangibles | 338,237 | 302,822 |
Accumulated amortization: |  |  |
Total accumulated amortization | (196,412) | (173,286) |
Other intangibles |  |  |
Intangibles : |  |  |
Total intangibles | 11,481 | 11,463 |
Accumulated amortization: |  |  |
Total accumulated amortization | $ (9,882) | $ (9,214) |

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