Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

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 Life Science			BSI Nano			BEST		Total
Balance at December 31, 2018	$	72.0		$	203.7		$	—	$	275.7
Current period additions/adjustments		13.1			6.3			0.3		19.7
Foreign currency impact		(0.9	)		(1.5	)		—		(2.4	)
Balance at December 31, 2019		84.2			208.5			0.3		293.0
Current period additions/adjustments		—			13.7			—		13.7
Foreign currency impact		7.9			5.8			—		13.7
Balance at December 31, 2020		92.1			228.0			0.3		320.4
Current period additions/adjustments		13.4			16.6			—		30.0
Foreign currency impact		(5.2	)		(5.7	)		—		(10.9	)
Balance at December 31, 2021	$	100.3		$	238.9		$	0.3	$	339.5

Summary of intangible assets

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

	2021							2020
	Gross					Net		Gross					Net
	Carrying		Accumulated			Carrying		Carrying		Accumulated			Carrying
	Amount		Amortization			Amount		Amount		Amortization			Amount
Existing technology and related patents	$	310.4	$	(206.8	)	$	103.6	$	309.8	$	(194.6	)	$	115.2
Customer relationships		156.1		(58.2	)		97.9		148.3		(45.4	)		102.9
Trade names		15.5		(5.8	)		9.7		15.2		(4.4	)		10.8
Other		1.8		(1.2	)		0.6		0.3		(0.1	)		0.2
Intangible assets	$	483.8	$	(272.0	)	$	211.8	$	473.6	$	(244.5	)	$	229.1

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):

2022	$	32.8
2023		29.7
2024		27.5
2025		26.6
2026		28.4
Thereafter		66.8
Total	$	211.8