Business Combinations - Summary of Unaudited Pro Forma Financial Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2018
Business Acquisition [Line Items]
Loss on foreign currency forward transactions	$ 29.0	$ 29.0
Hermes
Business Acquisition [Line Items]
Revenue	307.4	614.7
Net Income	$ 60.2	$ 120.3

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of decrease in the fair value of derivatives recognized in the income statement.

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