Acquisitions and Divestitures - Fair Value of the Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Combinations and Divestitures [Abstract]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	$ 1.1	$ 0.3	$ 0.4
Business Acquisition Purchase Price Allocation Assets [Abstract]
Accounts receivable	13.3	4.5	10.6
Inventories	48.5	5.4	12.7
Property, plant and equipment	37.9	2.8	19.5
Goodwill	70.8	4.7	18.1
Other intangible assets	63.9	7.5	13.0
Total assets acquired	235.5	25.2	74.3
Liabilities:
Accounts payable, trade	10.2	2.3	3.3
Salaries, wages and benefits	1.1	0.0	1.4
Other current liabilities	1.3	1.0	0.9
Business Combination Pension Liability	2.3	0.0	0.0
business combination postretirement liability assumed	1.1	0.0	0.0
Other non-current liabilities	5.9	0.5	4.5
Total liabilities assumed	21.9	3.8	10.1
Net assets acquired	$ 213.6	$ 21.4	$ 64.2