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Goodwill and Identifiable Intangible Assets, net - Summary of Identifiable Intangible Assets, net (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 322.7 | $ 308.4
Accumulated Amortization | (164.0) | (135.2)
Net | 158.7 | 173.2
Total identifiable intangible assets, net |  |
Gross Carrying Value | 331.6 | 317.3
Net | 167.6 | 182.1
Trademarks and tradenames with indefinite lives |  |
Indefinite-lived Intangible Assets [Line Items] |  |
Trademarks and tradenames with indefinite lives | 8.9 | 8.9
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 102.0 | 102.0
Accumulated Amortization | (34.9) | (30.5)
Net | 67.1 | 71.5
Trademarks and tradenames with indefinite lives |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 30.9 | 31.1
Accumulated Amortization | (7.5) | (4.3)
Net | 23.4 | 26.8
Software |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 109.3 | 95.3
Accumulated Amortization | (78.7) | (62.8)
Net | 30.6 | 32.5
Technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 67.0 | 66.8
Accumulated Amortization | (32.1) | (27.2)
Net | 34.9 | 39.6
Contracts |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 13.5 | 13.2
Accumulated Amortization | (10.8) | (10.4)
Net | $ 2.7 | $ 2.8

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