Acquisitions - Consideration transferred and reportable segment (Details) - USD ($) $ in Millions								12 Months Ended
	Nov. 17, 2021	Sep. 23, 2021	Sep. 09, 2021	Jul. 01, 2021	Mar. 18, 2021	Feb. 18, 2021	Oct. 15, 2018	Dec. 31, 2021	Dec. 31, 2020
Acquisitions
Consideration	$ 14.4						$ 6.1	$ 4.5
Cash paid for acquisitions, net of cash acquired	$ 12.9						$ 5.4	$ 4.5
Smart Tip B.v.
Acquisitions
Consideration									$ 3.1
Cash paid for acquisitions, net of cash acquired									2.4
Integrated Proteomics Applications, Inc.
Acquisitions
Consideration									3.0
Cash paid for acquisitions, net of cash acquired									$ 3.0
Creative Instruments
Acquisitions
Consideration				$ 1.0
Cash paid for acquisitions, net of cash acquired				$ 1.0
SVXR Inc
Acquisitions
Consideration			$ 13.4
Cash paid for acquisitions, net of cash acquired			$ 11.9
Glycopath Inc
Acquisitions
Consideration						$ 2.0
Cash paid for acquisitions, net of cash acquired						$ 2.0
Ion Path Inc
Acquisitions
Consideration					$ 2.0
Cash paid for acquisitions, net of cash acquired					$ 2.0
Olaris Inc
Acquisitions
Consideration		$ 0.5
Cash paid for acquisitions, net of cash acquired		$ 0.5