Accumulated Other Comprehensive Loss (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax [Abstract]
Cost of goods sold	$ 557.0us-gaap_CostOfGoodsAndServicesSold	$ 514.5us-gaap_CostOfGoodsAndServicesSold
Income before income taxes	94.7	96.1
Tax (expense) benefit	(31.3)us-gaap_IncomeTaxExpenseBenefit	(30.8)us-gaap_IncomeTaxExpenseBenefit
(Loss) gain net of tax	(1.2)
Cash flow hedge (loss) gain
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax [Abstract]
Cost of goods sold	0.7	0.4
Income before income taxes	0.7	0.4
Tax (expense) benefit	(0.2)	(0.1)
(Loss) gain net of tax	0.5	0.3
Pension and post retirement benefit plan adjustment
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax [Abstract]
Prior-service costs	0.2	0.1
Actuarial gains/(losses)	(2.9)	(0.9)
Income before income taxes	(2.7)	(0.8)
Tax (expense) benefit	1.0	0.3
(Loss) gain net of tax	(1.7)	(0.5)
Losses reclassified into earnings
Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax [Abstract]
(Loss) gain net of tax	$ (1.2)	$ (0.2)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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