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Goodwill and Other Intangible Assets Changes in Carrying Value of Goodwill (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Value of Goodwill

The changes in the carrying value of goodwill for our reportable segments, IAN and DXTRA, for the years ended December 31, 2020 and 2019 are listed below.

						IAN						DXTRA												Total 1
Balance as of December 31, 2018						$	4,201.5					$	674.4											$	4,875.9
Acquisitions						2.1						0.7												2.8
Foreign currency and other						14.5						1.2												15.7
Balance as of December 31, 2019						$	4,218.1					$	676.3											$	4,894.4
Acquisitions						23.5						0.5												24.0
Foreign currency and other						22.9						4.2												27.1
Balance as of December 31, 2020						$	4,264.5					$	681.0											$	4,945.5

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- References

No definition available.

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- 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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