Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in the carrying amount of goodwill

The following table sets forth the changes in the carrying amount of goodwill by segment (in millions):

	BSI BioSpin			BSI CALID			BSI Nano			BEST		Total
Balance at December 31, 2020	$	30.8		$	61.3		$	228.0		$	0.3	$	320.4
Current period additions/adjustments		12.8			0.6			16.6			—		30.0
Foreign currency impact		(1.2	)		(4.0	)		(5.7	)		—		(10.9	)
Balance at December 31, 2021		42.4			57.9			238.9			0.3		339.5
Current period additions/adjustments		18.6			55.3			58.0			—		131.9
Foreign currency impact		(3.2	)		(5.8	)		(4.8	)		—		(13.8	)
Balance at December 31, 2022		57.8			107.4			292.1			0.3		457.6
Current period additions/adjustments		25.8			83.8			(0.5	)		—		109.1
Foreign currency impact		2.9			10.3			2.7			—		15.9
Balance at December 31, 2023	$	86.5		$	201.5		$	294.3		$	0.3	$	582.6

Summary of intangible assets

The following is a summary of intangible assets (in millions):

	2023							2022
	Gross					Net		Gross					Net
	Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
	Amount		Amortization			Amount		Amount		Amortization			Amount
Existing technology and related patents	$	428.3	$	(250.4	)	$	177.9	$	354.7	$	(219.0	)	$	135.7
Customer relationships		227.4		(93.5	)		133.9		192.3		(72.1	)		120.2
Trade names		28.4		(10.1	)		18.3		22.3		(7.4	)		14.9
Other		2.2		(1.8	)		0.4		1.0		(0.9	)		0.1
Intangible assets	$	686.3	$	(355.8	)	$	330.5	$	570.3	$	(299.4	)	$	270.9

Schedule of estimated future amortization expense related to amortizable intangible assets

The estimated future amortization expense related to amortizable intangible assets is as follows (in millions):

2024	$	46.9
2025		46.4
2026		43.7
2027		36.6
2028		35.9
2029		31.6
Thereafter		86.4
Total	$	327.5