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Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Assets (Liabilities), at Fair Value, Net			$ (19.7)
Derivative, Fair Value, Net	$ 0.1
Maturity period of derivatives (in months)	18 months
Estimated amount of net gains associated with derivative instruments, net of tax	$ (3.6)
Foreign Exchange [Member] | Cash Flow Hedges [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	264.2
Hedges outstanding for British pounds	130.6
Hedges outstanding for Brazilian reals	40.6
Hedges outstanding for Australian dollars	38.5
Hedges outstanding for euros	31.7
Singapore Dollars Hedges Outstanding	10.0
Hedges outstanding for other currencies	12.8
Not Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	4.4	$ (13.5)
Not Designated as Hedging Instrument [Member] | Foreign Exchange [Member] | Fair Value Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	135.4
Hedges outstanding for British pounds	10.9
Hedges outstanding for Brazilian reals	8.4
Hedges outstanding for Australian dollars	6.2
Hedges outstanding for Indonesian rupiah	8.8
Mexican Pesos Hedges Outstanding	8.0
Hedges outstanding for euros	76.7
Hedges outstanding for Swiss francs	12.1
Hedges outstanding for other currencies	$ 4.3

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- Definition

Australian dollars hedges outstanding

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Brazilian Reals Hedges Outstanding

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British pounds hedges outstanding

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Euros Hedges Outstanding

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- Definition

Indonesian Rupiah Hedges Outstanding

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Mexican Pesos Hedges Outstanding

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Other currencies hedges outstanding

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Singapore dollars hedges outstanding

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Swiss Francs Hedges Outstanding

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- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

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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.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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