Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2025

Goodwill and Other Intangible Assets

Schedule of changes in the carrying amount of goodwill by segment

	Harsh				Interconnect
	Environment		Communications		and Sensor
	Solutions		Solutions		Systems		Total
Goodwill at December 31, 2024	$	3,180.0	$	2,951.5	$	2,104.7	$	8,236.2
Acquisition-related		100.4		888.5		0.3		989.2
Foreign currency translation		9.6		8.8		30.5		48.9
Goodwill at March 31, 2025	$	3,290.0	$	3,848.8	$	2,135.5	$	9,274.3

Summary of the Company's amortizable intangible assets

Other than goodwill noted above, the Company’s intangible assets as of March 31, 2025 and December 31, 2024 were as follows:

	March 31, 2025							December 31, 2024
	Weighted	Gross				Net		Gross				Net
	Average	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Life (years)	Amount		Amortization		Amount		Amount		Amortization		Amount
Customer relationships	12	$	1,523.1	$	547.5	$	975.6	$	1,296.4	$	519.8	$	776.6
Proprietary technology	14		930.8		183.8		747.0		350.3		170.9		179.4
Backlog and other	1		174.1		164.3		9.8		154.1		154.1		—
Total intangible assets (definite-lived)	12		2,628.0		895.6		1,732.4		1,800.8		844.8		956.0
Trade names (indefinite-lived)			269.1				269.1		269.1				269.1
Total		$	2,897.1	$	895.6	$	2,001.5	$	2,069.9	$	844.8	$	1,225.1

Summary of the Company's indefinite-lived intangible assets

Other than goodwill noted above, the Company’s intangible assets as of March 31, 2025 and December 31, 2024 were as follows:

	March 31, 2025							December 31, 2024
	Weighted	Gross				Net		Gross				Net
	Average	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Life (years)	Amount		Amortization		Amount		Amount		Amortization		Amount
Customer relationships	12	$	1,523.1	$	547.5	$	975.6	$	1,296.4	$	519.8	$	776.6
Proprietary technology	14		930.8		183.8		747.0		350.3		170.9		179.4
Backlog and other	1		174.1		164.3		9.8		154.1		154.1		—
Total intangible assets (definite-lived)	12		2,628.0		895.6		1,732.4		1,800.8		844.8		956.0
Trade names (indefinite-lived)			269.1				269.1		269.1				269.1
Total		$	2,897.1	$	895.6	$	2,001.5	$	2,069.9	$	844.8	$	1,225.1