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Goodwill (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill.

Schedule of changes in the carrying amount of goodwill

​

​	​	​
​	(in millions)
Balance at January 1, 2019	$	1,870.8
Acquisitions	​	131.8
Purchase price allocation adjustments	​	(1.9)
Effect of foreign currency translation	​	3.1
Balance at December 31, 2019	​	2,003.8
Acquisition	​	6.9
Purchase price allocation adjustments	​	(77.2)
Effect of foreign currency translation	​	1.7
Balance at December 31, 2020	​	1,935.2
Acquisitions	​	172.0
Effect of foreign currency translation	​	0.4
Balance at December 31, 2021	$	2,107.6

X

- References

No definition available.

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X

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267

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