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Goodwill (Details) $ in Millions	9 Months Ended
	Sep. 30, 2019 USD ($)
Change in the carrying amount of goodwill
Balance at the beginning of the period	$ 1,870.8
Acquisition	1.0
Purchase price allocation adjustments	(0.5)
Foreign currency translation gain	1.5
Balance at the end of the period	1,872.8
Accumulated impairment losses	$ 0.0

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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