Nature of Operations and Significant Accounting Policies (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Property, Plant and Equipment [Line Items]
Deferred Tax Assets, Other Comprehensive Loss	$ 135.4	$ 122.2	$ 115.8
Other Assets, Noncurrent	211.3	101.4
Assets	4,423.7	4,042.7	3,593.5
Long-term Debt, Excluding Current Maturities	842.0	942.3
Liabilities and Equity	$ 4,423.7	4,042.7
Number of reporting segments | segment	4
Allowance for doubtful accounts receivable	$ 7.2	7.6
Increase (decrease) in cost of sales by changes in level of LIFO inventories	$ 6.7	$ (2.5)	0.4
Percentage of inventories cost, LIFO method	27.70%	28.20%
Higher value of LIFO inventories if valued under FIFO	$ 17.1	$ 9.9
Depreciation expense	$ 71.6	72.7	41.0
Number of reporting units | segment	8
Estimated cost of capital, minimum	9.50%
Estimated cost of capital, maximum	12.50%
Estimated cost of capital, weighted	10.60%
Estimated amortization expense for intangible assets, year 2013	$ 40.9
Finite-Lived Intangible Assets, Amortization Expense, Year Two	38.4
Estimated amortization expense for intangible assets, year 2015	38.1
Finite-Lived Intangible Assets, Amortization Expense, Year Four	38.1
Estimated amortization expense for intangible assets, year 2017 and thereafter	279.7
Intangible assets, net	505.1	481.8	$ 276.8	$ 282.2
Intangibles with indefinite useful lives	$ 69.9	$ 69.9
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