Business Segment Information - Schedule of Revenue, Operating Income and Total Assets by Reportable Segment (Details) $ in Millions		3 Months Ended
		Mar. 31, 2023 USD ($) Segment	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Business segment information
Number of reportable segments | Segment		4
Total revenue		$ 685.3	$ 595.0
Operating Income (loss)		122.7	96.5
Assets		3,763.9		$ 3,611.8
Operating segments
Business segment information
Assets		3,637.6		3,508.4
Eliminations
Business segment information
Total revenue	[1]	(3.5)	(4.2)
Corporate, eliminations and other
Business segment information
Operating Income (loss)	[2]	(19.7)	(18.3)
Assets	[3]	(43.6)		(7.7)
BSI Life Science | Operating segments
Business segment information
Operating Income (loss)		47.4	37.8
BSI BioSpin | Operating segments
Business segment information
Total revenue		180.3	157.8
BSI CALID | Operating segments
Business segment information
Total revenue		236.7	203.2
Operating Income (loss)		57.6	48.1
BSI Nano | Operating segments
Business segment information
Total revenue		209.6	178.5
Operating Income (loss)		29.4	22.3
BEST | Operating segments
Business segment information
Total revenue		62.2	59.7
Operating Income (loss)		8.0	$ 6.6
Assets		$ 169.9		$ 111.1

[1] Represents product and service revenue between reportable segments.

[2] Represents corporate costs and eliminations not allocated to the reportable segments.

[3] Assets not allocated to the reportable segments and eliminations of intercompany transactions.