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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of goodwill | Goodwill consisted of the following (in millions):
| Marketplace |  | Finance |  | Total
Balance at December 31, 2021 (1)(2) | $ | 1,357.1 |  |  | $ | 240.9 |  |  | $ | 1,598.0 |
Decrease for disposition activity | (119.2) |  |  | — |  |  | (119.2) |
Foreign currency | (14.3) |  |  | — |  |  | (14.3) |
Balance at December 31, 2022 (1)(2) | $ | 1,223.6 |  |  | $ | 240.9 |  |  | $ | 1,464.5 |
Increase for acquisition activity | 25.9 |  |  | — |  |  | 25.9 |
Impairment | (225.3) |  |  | — |  |  | (225.3) |
Foreign currency | 6.1 |  |  | — |  |  | 6.1 |
Balance at December 31, 2023 (1)(2) | $ | 1,030.3 |  |  | $ | 240.9 |  |  | $ | 1,271.2 |
(1) Marketplace amounts are net of accumulated goodwill impairment charges of $250.8 million, $25.5 million and $25.5 million at December 31, 2023, 2022 and 2021, respectively. (2) Finance amounts are net of accumulated goodwill impairment charges of $161.5 million at December 31, 2023, 2022 and 2021.
Summary of customer relationships | A summary of customer relationships is as follows (in millions):
|  |  | December 31, 2023 |  | December 31, 2022
| Useful Lives (in years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Value |  | Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Value
Customer relationships | 5 - 19 |  | $ | 574.6 |  |  | $ | (438.5) |  |  | $ | 136.1 |  |  | $ | 553.2 |  |  | $ | (417.3) |  |  | $ | 135.9 |
Summary of other intangibles | A summary of other intangibles is as follows (in millions):
|  |  | December 31, 2023 |  | December 31, 2022
| Useful Lives (in years) |  | Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Value |  | Gross Carrying Amount |  | Accumulated Amortization |  | Carrying Value
Tradenames | 1 - Indefinite |  | $ | 123.2 |  |  | $ | (27.9) |  |  | $ | 95.3 |  |  | $ | 148.6 |  |  | $ | (15.2) |  |  | $ | 133.4 |
Computer software & technology | 3 - 13 |  | 533.7 |  |  | (447.5) |  |  | 86.2 |  |  | 488.7 |  |  | (390.8) |  |  | 97.9 |
Total |  |  | $ | 656.9 |  |  | $ | (475.4) |  |  | $ | 181.5 |  |  | $ | 637.3 |  |  | $ | (406.0) |  |  | $ | 231.3 |

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- Definition Tabular disclosure of amortizable finite-lived intangibles assets, in total and by major class, including the gross carrying amount and accumulated amortization, and indefinite-lived intangible assets not subject to amortization, excluding goodwill, in total and by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company. + References No definition available. + Details
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