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Intangible Assets Table (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | $ 1,295.8 |  | $ 1,293.4
Finite-Lived Intangible Assets, Accumulated Amortization | (208.3) |  | (182.3)
Finite-Lived Intangible Assets, Net | 1,087.5 |  | 1,111.1
Amortization of Intangible Assets | 25.0 | $ 24.9 |
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year | 100.0 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Two | 100.0 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Three | 100.0 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Four | 100.0 |  |
Finite-Lived Intangible Assets, Amortization Expense, Year Five | 100.0 |  |
Computer Software, Intangible Asset [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 40.6 |  | 38.0
Finite-Lived Intangible Assets, Accumulated Amortization | (22.9) |  | (20.1)
Finite-Lived Intangible Assets, Net | 17.7 |  | 17.9
Customer Platforms - Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 952.2 |  | 952.2
Finite-Lived Intangible Assets, Accumulated Amortization | (141.1) |  | (123.5)
Finite-Lived Intangible Assets, Net | 811.1 |  | 828.7
Customer Relationships - Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 147.0 |  | 147.0
Finite-Lived Intangible Assets, Accumulated Amortization | (19.0) |  | (16.5)
Finite-Lived Intangible Assets, Net | 128.0 |  | 130.5
Technology-Based Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | 156.0 |  | 156.2
Finite-Lived Intangible Assets, Accumulated Amortization | (25.3) |  | (22.2)
Finite-Lived Intangible Assets, Net | $ 130.7 |  | $ 134.0

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