Other (Expense) Income, Net (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument, Redemption
Interest income		$ 0.1	$ 0.4	$ 1.0
Unrealized gains on financial derivatives		0.0	0.0	3.6
Realized gain on investments		0.8	0.8	1.0
Loss on extinguishment of debt		(11.1)	0.0	0.0
All other, net		(0.1)	(3.0)	1.1
Other (expense) income, net		(10.3)	$ (1.8)	$ 6.7
Senior Notes \| Senior Notes Due 2020
Debt Instrument, Redemption
Redemption Premium	$ 8.2	8.2
Write off of Deferred Debt Issuance Cost	$ 2.9	$ 2.9

Unrealized Gain (Loss) on Financial Derivatives

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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

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The net realized gains or losses on investments during the period, not including gains or losses on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

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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.

+ References

No definition available.

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

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