| **Derivative Instruments - Narrative (Details) - USD ($) $ in Millions**                                 | 3 Months Ended | 6 Months Ended |        |
|----------------------------------------------------------------------------------------------------------|----------------|----------------|--------|
||
| **Trading Activity, Gains and Losses, Net [Line Items]**                                                 |           |           |   |   |   |
| After-tax gains (losses) associated with currency translation adjustment in other comprehensive income   | $ (1.0)        | $ (24.6)       | $ 1.5  | $ (24.0) |   |
| Designated as hedging instrument | Foreign currency contracts | Other current assets                     |           |           |   |   |   |
| **Trading Activity, Gains and Losses, Net [Line Items]**                                                 |           |           |   |   |   |
| Fair value of derivative instruments, assets                                                             | 4.4            |           | 4.4    |   | $ 6.4 |
| Not Designated as Hedging Instrument | Foreign currency contracts | Other current assets                 |           |           |   |   |   |
| **Trading Activity, Gains and Losses, Net [Line Items]**                                                 |           |           |   |   |   |
| Fair value of derivative instruments, assets                                                             | 0.0            |           | 0.0    |   | $ 0.1 |
| Net Investment Hedges | Non-U.S. | Designated as hedging instrument | Foreign currency forward contracts |           |           |   |   |   |
| **Trading Activity, Gains and Losses, Net [Line Items]**                                                 |           |           |   |   |   |
| After-tax gains (losses) associated with currency translation adjustment in other comprehensive income   | 0.8            | $ 1.7          | (1.3)  | $ (1.4) |   |
| Contractual amounts                                                                                      | $ 0.0          |           | $ 0.0  |   |   |

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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Nominal or face amount used to calculate payment on derivative.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.
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| - Definition
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.
+ References
No definition available.
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