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Intangible Assets, including Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2020 | Mar. 01, 2020 | Jan. 01, 2020
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Increase in Intangible Assets, net | $ 12.5 |  |
Decrease in value of intangible assets denominated in a foreign currency as a result of foreign exchange rate fluctuations | 20.7 |  |
Goodwill increase | 15.3 |  |
Decrease in value of goodwill denominated in a foreign currency as a result of foreign exchange rate fluctuations | 8.1 |  |
HCL |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets recorded in connection with acquisition | 27.6 |  |
Intangible assets |  | $ 27.6 |
Goodwill recorded in connection with acquisition | 19.1 |  |
MEPC |  |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets |  |  | $ 7.8
Goodwill recorded in connection with acquisition | $ 4.2 |  |

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