Assets and Liabilities Held for Sale (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]
Receivables, net	$ 21.0
Inventories, net	30.4
Prepayments and other current assets	10.3
Property, plant and equipment, net	47.7
Goodwill	7.3
Other intangible assets, net	21.1
Other assets	0.5
Impairment of carrying value	71.0
Total assets held for sale	67.3	$ 0.0
Accounts payable and accrued expenses	24.6
Other liabilities	4.9
Total liabilities held for sale	$ 29.5	$ 0.0