Restructuring and Restructuring Related Charges (Summary Of Restructuring-Related Costs) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Severance and other restructuring costs	$ 7.8	$ 0.8	$ 0.8
Inventory obsolescence and other	4.6	0.5	0.0
Total restructuring and restructuring-related costs	12.4	1.3	0.8
Amount of total that represents cash charges	$ 7.8	$ 0.8	$ 0.8

Inventory Obsolescence And Other Costs

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- 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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Amount, after cash payment, 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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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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