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.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Restructuring Charges - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 4.8	$ 21.4	$ 13.7	$ 36.7
2020 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			14.2
2020 Restructuring Plan \| Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 4.8		8.9
2020 Restructuring Plan \| Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charges			5.3
Asset impairment charges			$ 5.3