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v3.24.2.u1

Goodwill and Acquired Client Relationships - Schedule of Changes in the Components of Acquired Client Relationships (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Total |  |  |  |
Beginning balance, Net Book Value |  |  | $ 1,812.4 |
Intangible amortization and impairments | $ (7.3) | $ (12.5) | (14.5) | $ (25.0)
Ending balance, Net Book Value | 1,795.6 |  | 1,795.6 |
Acquired Client Relationships |  |  |  |
Indefinite-lived |  |  |  |
Beginning balance, Net Book Value |  |  | 1,603.1 |
Foreign currency translation |  |  | (2.3) |
Ending balance, Net Book Value | 1,600.8 |  | 1,600.8 |
Acquired Client Relationships |  |  |  |
Definite-lived |  |  |  |
Beginning balance, Gross Book Value |  |  | 1,260.5 |
Beginning balance, Accumulated Amortization |  |  | (1,051.2) |
Beginning balance, Net Book Value |  |  | 209.3 |
Intangible amortization and impairments | (7.3) | $ (12.5) | (14.5) | $ (25.0)
Foreign currency translation, Gross Book Value |  |  | (1.8) |
Foreign currency translation, Accumulated Amortization |  |  | 1.8 |
Foreign currency translation, Net Book Value |  |  | 0.0 |
Ending balance, Gross Book Value | 1,258.7 |  | 1,258.7 |
Ending balance, Accumulated Amortization | (1,063.9) |  | (1,063.9) |
Ending balance, Net Book Value | 194.8 |  | 194.8 |
Total |  |  |  |
Beginning balance, Net Book Value |  |  | 1,812.4 |
Intangible amortization and impairments |  |  | (14.5) |
Foreign currency translation |  |  | (2.3) |
Ending balance, Net Book Value | $ 1,795.6 |  | $ 1,795.6 |

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