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v3.20.2

Goodwill and Acquired Client Relationships - Schedule of Changes in the Components of Acquired Client Relationships (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Total |  |  |  |  |
Beginning balance, net book value |  |  |  | $ 1,182.0 |
Intangible amortization and impairments | $ (31.9) |  | $ (21.1) | (133.4) | $ (72.0)
Ending balance, net book value | 1,035.2 |  |  | 1,035.2 |
Acquired Client Relationships |  |  |  |  |
Definite-lived |  |  |  |  |
Beginning balance, gross book value |  |  |  | 1,248.8 |
Beginning balance, accumulated amortization |  |  |  | (1,039.0) |
Beginning balance, net book value |  |  |  | 209.8 |
Intangible amortization and impairments |  |  |  | (62.7) |
Foreign currency translation, gross |  |  |  | (3.2) |
Foreign currency translation, accumulated amortization |  |  |  | 1.7 |
Foreign currency translation, net |  |  |  | (1.5) |
Transfers, gross book value |  |  |  | (85.7) |
Transfers, accumulated amortization |  |  |  | 85.7 |
Ending balance, gross book value | 1,159.9 |  |  | 1,159.9 |
Ending balance, accumulated amortization | (1,014.3) |  |  | (1,014.3) |
Ending balance, net book value | 145.6 |  |  | 145.6 |
Indefinite-lived |  |  |  |  |
Beginning balance, net book value |  |  |  | 972.2 |
Intangible impairments | (14.0) | $ (60.3) |  | (70.7) |
Foreign currency translation |  |  |  | (11.9) |
Ending balance, net book value | 889.6 |  |  | 889.6 |
Total |  |  |  |  |
Beginning balance, net book value |  |  |  | 1,182.0 |
Intangible amortization and impairments |  |  |  | (133.4) |
Foreign currency translation |  |  |  | (13.4) |
Ending balance, net book value | $ 1,035.2 |  |  | $ 1,035.2 |

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