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v3.22.4

Goodwill and Acquired Client Relationships - Schedule of Changes in Acquired Client Relationships (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Intangible assets |  |  |
Impairment Of Intangible Asset Indefinite Lived Excluding Goodwill, Statement Of Income Or Comprehensive Income, Extensible Enumeration, Not Disclosed Flag | Indefinite-lived |  |
Net Book Value |  |  |
Beginning balance, net book value | $ 1,966.4 |  |
Intangible amortization and impairments | (51.6) | $ (35.7) | $ (140.5)
Ending balance, net book value | 1,876.0 | 1,966.4 |
Acquired client relationships |  |  |
Indefinite-lived |  |  |
Beginning balance, net book value | 1,630.3 | 909.0 |
Net investments |  | 725.0 |
Foreign currency translation | (37.2) | (3.7) |
Ending balance, net book value | 1,590.6 | 1,630.3 | 909.0
Net Book Value |  |  |
Intangible amortization and impairments | (2.5) |  |
Acquired client relationships |  |  |
Definite-lived |  |  |
Beginning balance, gross book value | 1,364.2 | 1,166.6 |
Beginning balance, accumulated amortization | (1,028.1) | (1,026.8) |
Beginning balance, net book value | 336.1 | 139.8 |
Net investments |  | 232.0 |
Intangible amortization and impairments | (49.1) | (35.7) |
Foreign currency translation, gross book value | (9.1) | 0.6 |
Foreign currency translation, accumulated depreciation | 7.5 | (0.6) |
Foreign currency translation, net book value | (1.6) |  |
Transfers, gross book value |  | (35.0) |
Transfers, accumulated amortization |  | 35.0 |
Ending balance, gross book value | 1,355.1 | 1,364.2 | 1,166.6
Ending balance, accumulated amortization | (1,069.7) | (1,028.1) | (1,026.8)
Ending balance, net book value | 285.4 | 336.1 | 139.8
Net Book Value |  |  |
Beginning balance, net book value | 1,966.4 | 1,048.8 |
New investments |  | 957.0 |
Intangible amortization and impairments | (51.6) | (35.7) |
Foreign currency translation | (38.8) | (3.7) |
Ending balance, net book value | $ 1,876.0 | $ 1,966.4 | $ 1,048.8

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