Restructuring - Schedule of Severance and Other Restructuring Accrual Activity (Details) $ in Millions	6 Months Ended
Jun. 30, 2020 USD ($)
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019	$ 1.2
Restructuring charges	29.2
Payments and other	(23.8)
Balance as of June 30, 2020	6.6
Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019	1.2
Restructuring charges	22.1
Payments and other	(16.9)
Balance as of June 30, 2020	6.4
Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2019	0.0
Restructuring charges	7.1
Payments and other	(6.9)
Balance as of June 30, 2020	0.2
Americas
Restructuring Reserve [Roll Forward]
Restructuring charges	20.9
Payments and other	(17.8)
Americas \| Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges	13.8
Payments and other	(10.9)
Americas \| Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges	7.1
Payments and other	(6.9)
EMEA
Restructuring Reserve [Roll Forward]
Restructuring charges	7.3
Payments and other	(5.0)
EMEA \| Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges	7.3
Payments and other	(5.0)
EMEA \| Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges	0.0
Payments and other	0.0
APAC
Restructuring Reserve [Roll Forward]
Restructuring charges	1.0
Payments and other	(1.0)
APAC \| Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Restructuring charges	1.0
Payments and other	(1.0)
APAC \| Contract Terminations and Other Costs
Restructuring Reserve [Roll Forward]
Restructuring charges	0.0
Payments and other	$ 0.0

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.P.3)
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

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-Topic 230
-SubTopic 10
-Section 45
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-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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