Equity (Details 2) (USD $) In Millions, unless otherwise specified	9 Months Ended
Sep. 30, 2014	Dec. 31, 2013
Schedule of accumulated other comprehensive loss
Balance at the beginning of the period	$ (6.7)
Current-period change	(11.6)
Balance at the end of the period	(18.3)
Deferred tax assets in accumulated other comprehensive income, unrealized gain on investments	0.1	0.1
Deferred tax assets in accumulated other comprehensive income, pension and postretirement benefit adjustments	6.9	6.9
Foreign Currency Translation Gain (Loss)
Schedule of accumulated other comprehensive loss
Balance at the beginning of the period	3.2
Current-period change	(11.8)
Balance at the end of the period	(8.6)
Unrealized Gain on Investments, Net of Tax
Schedule of accumulated other comprehensive loss
Balance at the beginning of the period	0.2
Current-period change	0.2
Balance at the end of the period	0.4
Pension and Postretirement Benefit Adjustments, Net of Tax
Schedule of accumulated other comprehensive loss
Balance at the beginning of the period		(10.1)
Balance at the end of the period	$ (10.1)	$ (10.1)

- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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