Business Segment Information (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Schedule of revenue, operating income and total assets by reportable segment

Selected reportable segment information is presented below (in millions):

	2021			2020			2019
Revenue:
BSI Life Science	$	1,510.6		$	1,253.9		$	1,244.9
BSI Nano		697.5			556.1			632.7
BEST		223.8			189.5			209.9
Eliminations (a)		(14.0	)		(12.0	)		(14.9	)
Total revenue	$	2,417.9		$	1,987.5		$	2,072.6
Operating Income:
BSI Life Science	$	385.4		$	273.8		$	290.3
BSI Nano		73.4			23.6			40.4
BEST		22.2			6.2			16.4
Corporate, eliminations and other (b)		(67.7	)		(55.3	)		(46.2	)
Total operating income	$	413.3		$	248.3		$	300.9

(a) Represents product and service revenue between reportable segments.

(b) Represents corporate costs and eliminations not allocated to the reportable segments.

Total assets by segment are as follows (in millions):

	2021			2020
Assets:
BSI Life Science, BSI Nano & Corporate	$	3,560.5		$	2,964.5
BEST		97.9			88.7
Eliminations and other (a)		(8.4	)		(4.2	)
Total assets	$	3,650.0		$	3,049.0

(a) Assets not allocated to the reportable segments and eliminations of intercompany transactions.

Summary of capital expenditures and depreciation and amortization by segment

Total capital expenditures and depreciation and amortization by segment are presented below (in millions):

	2021		2020		2019
Capital Expenditures:
BSI Life Science	$	61.3	$	59.1	$	44.4
BSI Nano		16.8		10.6		18.5
Corporate		4.7		17.4		4.7
BEST		9.2		10.1		5.4
Total capital expenditures	$	92.0	$	97.2	$	73.0

Depreciation and Amortization:
BSI Life Science	$	41.1	$	35.0	$	30.5
BSI Nano		37.4		35.7		35.9
Corporate		4.3		4.0		3.8
BEST		6.3		5.7		5.4
Total depreciation and amortization	$	89.1	$	80.4	$	75.6

Schedule of revenue and property, plant and equipment, net by geographical area

Revenue and long-lived assets (including property, plant and equipment, net and operating lease right of use assets) by geographical area are as follows (in millions):

	2021		2020		2019
Revenue:
United States	$	601.0	$	455.9	$	529.8
Germany		262.6		244.9		213.6
Rest of Europe		658.1		519.8		505.2
Asia Pacific		729.1		629.1		651.0
Other		167.1		137.8		173.0
Total revenue	$	2,417.9	$	1,987.5	$	2,072.6

	2021		2020		2019
Long-lived assets:
United States	$	51.3	$	61.3	$	53.2
Germany		244.0		227.8		175.1
Rest of Europe		141.5		144.7		118.3
Asia Pacific		22.6		22.1		16.4
Other		6.6		7.1		8.7
Total long-lived assets	$	466.0	$	463.0	$	371.7