Restructuring and Other Expense - Schedule of Restructuring and Other Expense (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restructuring and Related Activities [Abstract]
Severance and related	$ 3.9us-gaap_SeveranceCosts1	$ 2.1us-gaap_SeveranceCosts1	$ 16.9us-gaap_SeveranceCosts1
Lease termination costs	0.3us-gaap_BusinessExitCosts1	0.7us-gaap_BusinessExitCosts1	0.6us-gaap_BusinessExitCosts1
Other	1.2us-gaap_OtherRestructuringCosts	2.4us-gaap_OtherRestructuringCosts	2.2us-gaap_OtherRestructuringCosts
Total restructuring	5.4us-gaap_RestructuringCharges	5.2us-gaap_RestructuringCharges	19.7us-gaap_RestructuringCharges
Settlement of UK pension plan	0.5	10.6	0
Gain on sale of fixed assets held for sale	0	(9.8)	(0.7)
Acquisition and integration related costs	0	2.8	3.7
Pension settlement/curtailment	0.2	2.1	2.4
Contingent consideration fair value adjustment	0	(0.6)	(8.6)
Intangible asset abandonment	0	0	1.9
Asset disposals / write down	1.8	0	0
Other expenses	5.7us-gaap_OperatingCostsAndExpenses	1.0us-gaap_OperatingCostsAndExpenses	2.7us-gaap_OperatingCostsAndExpenses
Total	$ 13.6	$ 11.3	$ 21.1

Business Combination, Acquisition and Integration Related Costs

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Business Combination, Contingent Consideration Arrangements, Adjustment

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Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments Related to Restructuring

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Intangible Assets Accelerated Amortization

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Restructuring, Settlement, Impairment and Other Expenses, Including Business Combinations Acquisition and Integration Costs, Excluding Goodwill

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

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-Section 45

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-Topic 420

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-Section S99

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.

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Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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-Publisher FASB

-Name Accounting Standards Codification

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-Section 25

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