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Restructuring and Related Activities - Restructuring Accrual Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Restructuring Cost and Reserve
Restructuring charges	$ 0.1	$ 6.5	$ 0.3	$ 10.4
Restructuring Reserve [Roll Forward]
Severance and other restructuring reserve, beginning balance			2.6
Restructuring charges			0.3
Payments			(1.9)
Severance and other restructuring reserve, ending balance	1.0		1.0
Severance Pay and Contract Termination and Other Costs
Restructuring Cost and Reserve
Restructuring charges	0.1	7.4	0.3	12.7
Severance Pay and Benefits
Restructuring Reserve [Roll Forward]
Severance and other restructuring reserve, beginning balance			1.9
Restructuring charges			0.3
Payments			(1.5)
Severance and other restructuring reserve, ending balance	0.7		0.7
Contract Termination and Other Costs
Restructuring Reserve [Roll Forward]
Severance and other restructuring reserve, beginning balance			0.7
Restructuring charges			0.0
Payments			(0.4)
Severance and other restructuring reserve, ending balance	0.3		0.3
Cost of Goods Sold, Restructuring Charges | Severance Pay and Contract Termination and Other Costs
Restructuring Cost and Reserve
Restructuring charges	0.0	0.9		2.3
Operating Expense | Severance Pay and Contract Termination and Other Costs
Restructuring Cost and Reserve
Restructuring charges	$ 0.1		$ 0.3
Restructuring Charges | Severance Pay and Contract Termination and Other Costs
Restructuring Cost and Reserve
Restructuring charges		$ 6.5		$ 10.4

X

- Definition

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.

+ References

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Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.

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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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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.

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