Nature Of Operations And Significant Accounting Policies (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2017 USD ($) Segment	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Property, Plant and Equipment [Line Items]
Other Assets, Noncurrent	$ 114.6	$ 95.0
Assets	3,593.5	3,428.0	$ 3,336.9
Long-term Debt, Excluding Current Maturities	494.1	745.3
Liabilities and Equity	3,593.5	3,428.0
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax	$ 115.8	0.0	0.0
Number of reporting segments | Segment	4
Increase (decrease) in cost of sales by changes in level of LIFO inventories	$ 0.4	$ 1.8	1.5
Percentage of inventories cost, LIFO method	32.00%	34.00%
Higher value of LIFO inventories if valued under FIFO	$ 13.6	$ 13.3
Depreciation expense	$ 41.0	40.2	$ 39.1
Number of reporting units | Segment	7
Estimated cost of capital, minimum	10.00%
Estimated cost of capital, maximum	13.00%
Estimated cost of capital, weighted	11.00%
Hypothetical decrease to fair values of each reporting unit	10.00%
Estimated amortization expense for intangible assets, year 2013	$ 28.9
Finite-Lived Intangible Assets, Amortization Expense, Year Two	26.2
Estimated amortization expense for intangible assets, year 2015	22.0
Finite-Lived Intangible Assets, Amortization Expense, Year Four	19.6
Estimated amortization expense for intangible assets, year 2017 and thereafter	151.4
Intangible assets, net	276.8	$ 282.2
Intangibles with indefinite useful lives	$ 28.7
Minimum [Member] | Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful life- minimum, years	10 years
Minimum [Member] | Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful life- minimum, years	3 years
Maximum [Member] | Buildings And Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful life- minimum, years	25 years
Maximum [Member] | Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, estimated useful life- minimum, years	10 years