Acquisitions and Divestitures - Purchase Price Allocation Identifiable Intangible Assets (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Business Acquisition Purchase Price Allocation Identifiable Intangible Assets [Line Items]
Document Period End Date	Jun. 30, 2017
Business Acquisition Purchase price allocation identifiable intangible assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 29.5
Accounts receivable	8.4	$ 8.4
Inventories	17.8	17.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	5.1	5.3
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	0.6
Property, plant and equipment	16.5	16.5
Goodwill	28.8	29.9
Other intangible assets	27.9	27.9
Total assets acquired	104.6	105.9
Accounts payable, trade	8.1	8.1
Salaries, wages and benefits	1.3	1.3
Other current liabilities	3.8	4.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	2.2	2.2
Deferred Taxes, Business Combination, Valuation Allowance, Available to Reduce Goodwill	10.4	10.4
Other non-current liabilities	6.3	7.6
Total liabilities assumed	32.1	34.0
Net assets acquired	72.5	71.9
Goodwill, Purchase Accounting Adjustments	(1.1)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets	$ 0.1	$ 0.1
Know-how [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Intangible Assets, Weighted Average Life	20 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 8.5
Computer Software, Intangible Asset [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Intangible Assets, Weighted Average Life	3 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 0.2
Noncompete Agreements [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Intangible Assets, Weighted Average Life	5 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 0.2
Customer Relationships [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Intangible Assets, Weighted Average Life	19 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 19.1
Trade names [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Intangible Assets, Weighted Average Life	14 years
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 1.5
2017 Acquisitions [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Accounts receivable	7.5
Inventories	11.9
Property, plant and equipment	4.0
Goodwill	15.1
Other intangible assets	29.5
Total assets acquired	68.0
Accounts payable, trade	2.1
Salaries, wages and benefits	0.3
Other current liabilities	2.1
Total liabilities assumed	4.5
Net assets acquired	63.5
Other Current Liabilities [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	(0.6)
Assets, Total [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	(1.3)
Liabilities, Total [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	(1.9)
Other Noncurrent Liabilities [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	(1.3)
Other Current Assets [Member]
Business Acquisition Purchase price allocation identifiable intangible assets
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred	$ (0.2)