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Goodwill and Other Intangible Assets - Changes in Carrying Value of Goodwill by Reportable Segment (Parenthetical) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2019 | Apr. 03, 2019 | Dec. 31, 2018
Goodwill [Roll Forward] |  |  |  |
Goodwill | $ 1,262.4 | $ 1,262.4 |  | $ 1,297.1
Impairment charges | 64.0 | 64.0 |  |
Jefferson Wells |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 55.5 | 55.5 |  |
Americas | United States |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 476.5 | 476.5 |  | 476.5
Americas | United States | Jefferson Wells |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 532.0 | 532.0 |  | 532.0
Southern Europe |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill |  |  | $ 31.2 |
Southern Europe | France |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 68.3 | 68.3 |  | 68.9
Southern Europe | Italy |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 4.7 | 4.7 |  | 4.8
Northern Europe | Germany |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill | 67.5 | $ 67.5 |  | $ 129.2
Impairment charges | 60.2 |  |  |
APME | New Zealand |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Impairment charges | $ 3.8 |  |  |

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