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Goodwill and Other Purchased Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Changes to goodwill by segment

Changes to goodwill by segment were as follows (in millions):

			Life Science						Clinical Diagnostics						Total
Balances as of December 31, 2024:
Goodwill			$	333.3					$	412.4					$	745.7
Accumulated impairment losses			(41.8)						(293.4)						(335.2)
Goodwill, net			291.5						119.0						410.5
Acquisitions			161.9						—						161.9
Foreign currency adjustments			—						9.2						9.2
Period change, net			161.9						9.2						171.1
Balances as of June 30, 2025:
Goodwill			495.2						421.6						916.8
Accumulated impairment losses			(41.8)						(293.4)						(335.2)
Goodwill, net			$	453.4					$	128.2					$	581.6

Schedule of identifiable purchased intangible assets with definite lives

Information regarding our identifiable purchased intangible assets with finite and indefinite lives is as follows (in millions):

			June 30, 2025
			Weighted-Average Remaining Amortization Period (in years)						Gross Carrying Amount						Accumulated Amortization						Net Carrying Amount
Customer relationships/lists			4.8						$	115.5					$	(106.7)					$	8.8
Know how			0.3						175.0						(173.8)						1.2
Developed product technology			11.1						316.1						(151.3)						164.8
Licenses			3.5						59.8						(48.4)						11.4
Tradenames			4.1						6.1						(5.1)						1.0
Covenants not to compete			0.8						6.5						(5.9)						0.6
Total finite-lived intangible assets									679.0						(491.2)						187.8
In-process research and development									209.1						—						209.1
Total purchased intangible assets									$	888.1					$	(491.2)					$	396.9

			December 31, 2024
			Weighted-Average Remaining Amortization Period (in years)						Gross Carrying Amount						Accumulated Amortization						Net Carrying Amount
Customer relationships/lists			4.6						$	102.9					$	(95.6)					$	7.3
Know how			0.8						163.4						(160.0)						3.4
Developed product technology			11.5						215.5						(140.4)						75.1
Licenses			4.0						58.7						(45.6)						13.1
Tradenames			4.6						5.9						(4.8)						1.1
Covenants not to compete			1.3						6.4						(5.5)						0.9
Total finite-lived intangible assets									552.8						(451.9)						100.9
In-process research and development									192.7						—						192.7
Total purchased intangible assets									$	745.5					$	(451.9)					$	293.6

Finite-lived Intangible Assets Amortization Expense [Table Text Block]

Amortization expense related to purchased intangible assets was as follows (in millions):

			Three Months Ended												Six Months Ended
			June 30,												June 30,
			2025						2024						2025						2024
Amortization expense			$	5.2					$	5.3					$	10.2					$	10.8

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Tabular disclosure of the characteristics, including initial carrying value, residual amount, weighted average useful life, of finite-lived intangible assets acquired during the period by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by nature or by their use in the operations of the company.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
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Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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