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Goodwill and Intangibles - Goodwill (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 USD ($) segment | Dec. 31, 2018 USD ($) item | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Oct. 28, 2018 USD ($)
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | $ 717.6 | $ 699.8 |
Acquired During the Period |  |  | 1.5 | 2.0 |
Foreign Currency Translation and Other |  |  | (7.2) | 15.8 |
Balance at the end of the period |  |  | 711.9 | 717.6 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (167.1) | (167.1) |
Balance at the end of the period |  |  | (167.1) | (167.1) |
Goodwill impairment charges |  |  | 0.0 | 0.0 |
Net Goodwill | $ 544.8 | $ 544.8 | 544.8 | 550.5 | $ 544.3
Number of reporting units | item |  | 8 |  |  |
Number of geographic segments | 3 | 3 |  |  |
Goodwill impairment charges |  |  | 0.0 | 0.0 |
Americas |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | 437.4 | 434.7 |
Acquired During the Period |  |  |  | 2.0 |
Foreign Currency Translation and Other |  |  |  | 0.7 |
Balance at the end of the period |  |  |  | 437.4 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (24.5) | (24.5) |
Balance at the end of the period |  |  |  | (24.5) |
Net Goodwill |  |  |  | 412.9 |
Europe |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | 249.3 | 234.9 |
Foreign Currency Translation and Other |  |  |  | 14.4 |
Balance at the end of the period |  |  |  | 249.3 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (129.7) | (129.7) |
Balance at the end of the period |  |  |  | (129.7) |
Net Goodwill |  |  |  | 119.6 |
Americas |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | 437.4 |  |
Acquired During the Period |  |  | 1.5 |  |
Foreign Currency Translation and Other |  |  | (0.8) |  |
Balance at the end of the period |  |  | 438.1 | 437.4 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (24.5) |  |
Balance at the end of the period |  |  | (24.5) | (24.5) |
Net Goodwill | $ 413.6 | $ 413.6 | 413.6 |  |
Europe |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | 249.3 |  |
Foreign Currency Translation and Other |  |  | (5.6) |  |
Balance at the end of the period |  |  | 243.7 | 249.3 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (129.7) |  |
Balance at the end of the period |  |  | (129.7) | (129.7) |
Net Goodwill | 114.0 | 114.0 | 114.0 |  |
APMEA |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | 30.9 | 30.2 |
Foreign Currency Translation and Other |  |  | (0.8) | 0.7 |
Balance at the end of the period |  |  | 30.1 | 30.9 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (12.9) | (12.9) |
Balance at the end of the period |  |  | (12.9) | (12.9) |
Net Goodwill | 17.2 | 17.2 | 17.2 | $ 18.0 |
Water quality |  |  |  |  |
Accumulated Impairment Losses |  |  |  |  |
Net Goodwill | $ 0.0 | $ 0.0 | $ 0.0 |  |

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