Goodwill and Acquired Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The carrying value of goodwill by segment was as follows (in millions):

	Digital Imaging		Instrumentation		Aerospace and Defense Electronics		Engineered Systems		Total
Balance at December 31, 2023	$	6,877.0	$	944.8	$	163.4	$	17.6	$	8,002.8
Current year acquisitions	63.8		23.3		—		—		87.1
Foreign currency changes and other	(42.0)		(7.5)		(0.2)		—		(49.7)
Balance at June 30, 2024	$	6,898.8	$	960.6	$	163.2	$	17.6	$	8,040.2

Schedule of Carrying Value of Acquired Finite-Lived Intangible Assets

Acquired intangible assets (in millions):	June 30, 2024						December 31, 2023
	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
Proprietary technology	$	1,686.9	$	730.0	$	956.9	$	1,696.6	$	663.0	$	1,033.6
Customer list/relationships	609.0		236.5		372.5		609.5		219.4		390.1
Patents	0.6		0.6		—		0.6		0.6		—
Non-compete agreements	0.9		0.9		—		0.9		0.9		—
Trademarks	12.2		6.6		5.6		10.2		5.8		4.4
Backlog	16.3		16.3		—		16.4		16.4		—
Total intangibles subject to amortization	2,325.9		990.9		1,335.0		2,334.2		906.1		1,428.1
Intangibles not subject to amortization:
Trademarks	847.9		—		847.9		850.0		—		850.0
Total acquired intangible assets	$	3,173.8	$	990.9	$	2,182.9	$	3,184.2	$	906.1	$	2,278.1

Schedule of Carrying Value of Acquired Indefinite-Lived Intangible Assets

Acquired intangible assets (in millions):	June 30, 2024						December 31, 2023
	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
Proprietary technology	$	1,686.9	$	730.0	$	956.9	$	1,696.6	$	663.0	$	1,033.6
Customer list/relationships	609.0		236.5		372.5		609.5		219.4		390.1
Patents	0.6		0.6		—		0.6		0.6		—
Non-compete agreements	0.9		0.9		—		0.9		0.9		—
Trademarks	12.2		6.6		5.6		10.2		5.8		4.4
Backlog	16.3		16.3		—		16.4		16.4		—
Total intangibles subject to amortization	2,325.9		990.9		1,335.0		2,334.2		906.1		1,428.1
Intangibles not subject to amortization:
Trademarks	847.9		—		847.9		850.0		—		850.0
Total acquired intangible assets	$	3,173.8	$	990.9	$	2,182.9	$	3,184.2	$	906.1	$	2,278.1