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.

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No definition available.

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The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

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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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Nominal or face amount used to calculate payment on derivative.

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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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Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Net assets associated with foreign currency derivatives	$ (1.0)		$ (1.0)		$ 5.4
Maturity period of derivatives (in months)			15 months
Estimated amount of net gains (losses) associated with derivative instruments, net of tax, in next twelve months			$ (1.9)
Designated as Hedging Instrument \| Foreign Exchange Forward \| Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	134.9		134.9
Designated as Hedging Instrument \| United Kingdom, Pounds \| Foreign Exchange Forward \| Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	74.7		74.7
Designated as Hedging Instrument \| Australia, Dollars \| Foreign Exchange Forward \| Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	39.4		39.4
Designated as Hedging Instrument \| Euro Member Countries, Euro \| Foreign Exchange Forward \| Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	9.2		9.2
Designated as Hedging Instrument \| No currency \| Foreign Exchange Forward \| Cash Flow Hedges
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Notional Amount	11.6		11.6
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) on derivatives not designated as hedging instruments	$ 1.4	$ (2.2)	$ 1.3	$ (5.3)