Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Changes in the Carrying Value of Goodwill

Goodwill (in millions):	Digital Imaging		Instrumentation		Aerospace and Defense Electronics		Engineered Systems		Total
Balance at January 3, 2022	$	6,867.5	$	935.9	$	165.7	$	17.6	$	7,986.7
Current year acquisitions	78.5		—		—		—		78.5
Foreign currency changes and other	(165.6)		(22.7)		(3.9)		—		(192.2)
Balance at January 1, 2023	6,780.4		913.2		161.8		17.6		7,873.0
Current year acquisitions	55.5		21.1		—		—		76.6
Foreign currency changes and other	41.1		10.5		1.6		—		53.2
Balance at December 31, 2023	$	6,877.0	$	944.8	$	163.4	$	17.6	$	8,002.8

Schedule of Carrying Value of Other Acquired Intangible Assets

In the fourth quarter of 2023, the Company performed a quantitative test for all reporting units. The results of our annual impairment tests of goodwill indicated that no impairment existed in 2023, 2022 or 2021.

	2023						2022
	Gross carrying amount		Accumulated amortization		Net carrying amount		Gross carrying amount		Accumulated amortization		Net carrying amount
Acquired intangible assets (in millions):
Proprietary technology	$	1,696.6	$	663.0	$	1,033.6	$	1,667.7	$	497.4	$	1,170.3
Customer list/relationships	609.5		219.4		390.1		596.1		177.0		419.1
Patents	0.6		0.6		—		0.6		0.6		—
Non-compete agreements	0.9		0.9		—		0.9		0.9		—
Definite-lived trademarks	10.2		5.8		4.4		7.1		4.4		2.7
Backlog	16.4		16.4		—		16.1		15.8		0.3
Acquired intangible assets subject to amortization	2,334.2		906.1		1,428.1		2,288.5		696.1		1,592.4
Acquired intangible assets not subject to amortization:
Indefinite-lived trademarks	850.0		—		850.0		848.2		—		848.2
Total acquired intangible assets	$	3,184.2	$	906.1	$	2,278.1	$	3,136.7	$	696.1	$	2,440.6

Schedule of Estimated Remaining Useful Lives by Asset Category

The estimated remaining useful lives by asset category as of December 31, 2023, are as follows:

Acquired intangibles subject to amortization	Weighted average remaining useful life in years
Proprietary technology	6.6
Customer list/relationships	9.8
Trademarks	3.0
Total acquired intangibles subject to amortization	7.2