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Goodwill and Other Intangible Assets - Changes in Goodwill by Reportable Segment (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2019 USD ($)
Goodwill [Roll Forward] |
Balance, December 31, 2018 | $ 1,297.1
Goodwill acquired | 0.4
Currency and other impacts | (3.9)
Balance, March 31, 2019 | 1,293.6
Jefferson Wells |
Goodwill [Roll Forward] |
Balance, March 31, 2019 | 55.5
Americas | United States |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 476.5
Balance, March 31, 2019 | 476.5
Southern Europe | France |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 68.9
Balance, March 31, 2019 | 67.4
Southern Europe | Italy |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 4.8
Balance, March 31, 2019 | 4.6
Reportable segments | Americas |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 519.9
Goodwill acquired | 0.4
Currency and other impacts | 0.8
Balance, March 31, 2019 | 521.1
Reportable segments | Southern Europe |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 112.2
Goodwill acquired | 0.0
Currency and other impacts | (1.9)
Balance, March 31, 2019 | 110.3
Reportable segments | Northern Europe |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 435.4
Goodwill acquired | 0.0
Currency and other impacts | (2.8)
Balance, March 31, 2019 | 432.6
Reportable segments | APME |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 102.0
Goodwill acquired | 0.0
Currency and other impacts | 0.0
Balance, March 31, 2019 | 102.0
Reportable segments | Right Management |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 62.1
Goodwill acquired | 0.0
Currency and other impacts | 0.0
Balance, March 31, 2019 | 62.1
Corporate |
Goodwill [Roll Forward] |
Balance, December 31, 2018 | 65.5
Goodwill acquired | 0.0
Currency and other impacts | 0.0
Balance, March 31, 2019 | $ 65.5

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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