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Goodwill and Other Intangible Assets - Changes in Goodwill by Reportable Segment (Details) $ in Millions | 9 Months Ended
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Sep. 30, 2018 USD ($)
Goodwill [Roll Forward] |
Balance, January 1, 2018 | $ 1,343.0
Goodwill acquired | 6.1
Currency and other impacts | (33.5)
Balance, September 30, 2018 | 1,315.6
Right Management |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 62.1
Balance, September 30, 2018 | 62.1
Reportable segments | Americas |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 519.2
Goodwill acquired | 4.6
Currency and other impacts | (1.5)
Balance, September 30, 2018 | 522.3
Reportable segments | Americas | United States | Reportable subsegments |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 476.5
Balance, September 30, 2018 | 476.5
Reportable segments | Southern Europe |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 121.9
Goodwill acquired | 0.0
Currency and other impacts | (8.2)
Balance, September 30, 2018 | 113.7
Reportable segments | Southern Europe | France | Reportable subsegments |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 76.3
Balance, September 30, 2018 | 69.7
Reportable segments | Southern Europe | Italy | Reportable subsegments |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 5.0
Balance, September 30, 2018 | 4.8
Reportable segments | Northern Europe |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 468.1
Goodwill acquired | 0.0
Currency and other impacts | (16.3)
Balance, September 30, 2018 | 451.8
Reportable segments | APME |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 106.2
Goodwill acquired | 1.5
Currency and other impacts | (7.5)
Balance, September 30, 2018 | 100.2
Reportable segments | Right Management |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 62.1
Goodwill acquired | 0.0
Currency and other impacts | 0.0
Balance, September 30, 2018 | 62.1
Corporate |
Goodwill [Roll Forward] |
Balance, January 1, 2018 | 65.5
Goodwill acquired | 0.0
Currency and other impacts | 0.0
Balance, September 30, 2018 | 65.5
Corporate | Jefferson Wells |
Goodwill [Roll Forward] |
Balance, September 30, 2018 | $ 55.5

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