Goodwill and Other Intangible Assets - Changes in Carrying Value of Goodwill by Reportable Segment (Details) $ in Millions	3 Months Ended
Mar. 31, 2021 USD ($)
Goodwill [Roll Forward]
Balance, December 31, 2020	$ 1,225.8
Acquisitions	2.9
Currency impact	(13.7)
Balance, March 31, 2021	1,215.0
Reportable segments \| Americas
Goodwill [Roll Forward]
Balance, December 31, 2020	536.6
Acquisitions	2.9
Currency impact	0.5
Balance, March 31, 2021	540.0
Reportable segments \| Southern Europe
Goodwill [Roll Forward]
Balance, December 31, 2020	154.9
Currency impact	(7.0)
Balance, March 31, 2021	147.9
Reportable segments \| Northern Europe
Goodwill [Roll Forward]
Balance, December 31, 2020	326.6
Currency impact	(4.9)
Balance, March 31, 2021	321.7
Reportable segments \| APME
Goodwill [Roll Forward]
Balance, December 31, 2020	81.7
Currency impact	(2.3)
Balance, March 31, 2021	79.4
Corporate
Goodwill [Roll Forward]
Balance, December 31, 2020	126.0
Balance, March 31, 2021	$ 126.0

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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