Other Expense, Net (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Extinguishment of Debt [Line Items]
Interest income	$ 0.0	$ 0.1	$ 0.1	$ 0.3
Realized gain on investments	0.1	0.0	0.4	0.5
Loss on extinguishment of debt	0.0	0.0	(11.1)	0.0
All other, net	(0.1)	(1.0)	0.2	(0.9)
Other expense, net	$ 0.0	$ (0.9)	(10.4)	$ (0.1)
Senior Notes Due 2020 \| Senior Notes
Extinguishment of Debt [Line Items]
Redemption Premium			8.2
Write off of Deferred Debt Issuance Cost			$ 2.9

This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 50
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Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

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Amount of expense related to nonoperating activities, classified as other.

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The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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