Acquisition and Discontinued Operations (Summary of Carrying Amount of Major Classes of Assets and Liabilities Related to EMEA and Pacific Rim Businesses) (Details) - USD ($) $ in Millions	Sep. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 10.0
Total current assets discontinued operations	290.3	$ 306.1
Total assets	2,002.5	1,873.5
Current liabilities:
Total current liabilities	117.2	128.5
EMEA and Pacific Rim Business [Member]
Current assets:
Cash and cash equivalents	10.0
Accounts and notes receivable, net	60.6	61.4
Inventories, net	63.9	59.2
Income tax receivable	7.1	3.1
Other current assets	9.4	12.9
Total current assets discontinued operations	151.0	136.6
Property, plant, and equipment, less accumulated depreciation and amortization	102.0	131.3
Prepaid pension costs	26.6	26.1
Goodwill and intangible assets, net	7.0	7.2
Deferred income taxes	2.8	4.0
Other non-current assets	0.9	0.9
Total non-current assets of discontinued operations	139.3	169.5
Total assets	290.3	306.1
Current liabilities:
Accounts payable and accrued expenses	68.5	78.6
Income tax payable	6.5	1.3
Total current liabilities	75.0	79.9
Pension benefit liabilities	35.1	34.7
Other long-term liabilities	1.8	1.8
Deferred income taxes	5.3	12.1
Total non-current liabilities of discontinued operations	42.2	48.6
Total liabilities of discontinued operations	$ 117.2	$ 128.5