Other Charges (Gain), Net - Restructuring Plans (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring charges
Restructuring expenses	$ 1.9	$ (6.8)	$ 5.7	$ (1.4)
Gain related to the sale of building		7.8		7.8
Cost of revenues
Restructuring charges
Restructuring expenses	0.2	0.6	1.3	4.1
Other charges, net
Restructuring charges
Restructuring expenses	$ 1.7	$ (7.4)	$ 4.4	$ (5.5)

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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Data Type:	xbrli:monetaryItemType
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