Amount, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Restructuring Activities And Related Impairments - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Inventory write-off	$ 11.1	$ 0.0	$ 0.0
Portion of treatment unit business \| Disposal by abandonment
Restructuring Cost and Reserve [Line Items]
Non-cash loss on disposal of partial business unit	19.3
Impairment of intangible assets	9.2
Inventory write-off	9.0
Other restructuring related activities \| Disposal by abandonment
Restructuring Cost and Reserve [Line Items]
Non-cash loss on disposal of partial business unit	$ 26.8