Business Segment Information - Information by Segment (Details) $ in Millions		12 Months Ended
	Feb. 26, 2020 USD ($)	Dec. 31, 2021 USD ($) Segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Business segment information
Number of reportable segments | Segment		3
Total revenue		$ 2,417.9	$ 1,987.5	$ 2,072.6
Operating Income		413.3	248.3	300.9
Assets		3,650.0	3,049.0
Capital Expenditures	$ 12.3	92.0	97.2	73.0
Depreciation and Amortization		89.1	80.4	75.6
Operating segments
Business segment information
Assets		3,560.5	2,964.5
Eliminations
Business segment information
Total revenue		(14.0)	(12.0)	(14.9)
Corporate, eliminations and other
Business segment information
Operating Income		(67.7)	(55.3)	(46.2)
Assets		(8.4)	(4.2)
BSI Life Science
Business segment information
Capital Expenditures		61.3	59.1	44.4
Depreciation and Amortization		41.1	35.0	30.5
BSI Life Science | Operating segments
Business segment information
Total revenue		1,510.6	1,253.9	1,244.9
Operating Income		385.4	273.8	290.3
BSI Nano
Business segment information
Capital Expenditures		16.8	10.6	18.5
Depreciation and Amortization		37.4	35.7	35.9
BSI Nano | Operating segments
Business segment information
Total revenue		697.5	556.1	632.7
Operating Income		73.4	23.6	40.4
BEST
Business segment information
Capital Expenditures		9.2	10.1	5.4
Depreciation and Amortization		6.3	5.7	5.4
BEST | Operating segments
Business segment information
Total revenue		223.8	189.5	209.9
Operating Income		22.2	6.2	16.4
Assets		97.9	88.7
Corporate
Business segment information
Capital Expenditures		4.7	17.4	4.7
Depreciation and Amortization		$ 4.3	$ 4.0	$ 3.8