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Special Charges Special Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Special charges for workforce reductions and advisory costs	$ 0.3	$ 2.3	$ 0.9	$ 4.7
Termination benefit costs			0.8
Other Restructuring Costs			0.1	$ 3.3
Contract Termination [Member]
Termination benefit costs			0.1
Restructuring liability, noncurrent	$ 3.3		$ 3.3

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Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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+ References

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+ References

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