Revenue - Disaggregation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues disaggregated by Group
Total revenue	$ 595.0	$ 554.7
Revenue recognized at a point in time
Revenues disaggregated by Group
Total revenue	514.0	480.0
Revenue recognized over time
Revenues disaggregated by Group
Total revenue	81.0	74.7
United States
Revenues disaggregated by Group
Total revenue	155.0	119.0
Germany
Revenues disaggregated by Group
Total revenue	58.5	70.1
Rest of Europe
Revenues disaggregated by Group
Total revenue	143.4	149.8
CHINA
Revenues disaggregated by Group
Total revenue	86.3	66.8
Rest of Asia Pacific
Revenues disaggregated by Group
Total revenue	102.6	113.7
Other
Revenues disaggregated by Group
Total revenue	49.2	35.3
Operating segments | Bruker BioSpin
Revenues disaggregated by Group
Total revenue	157.8	159.4
Operating segments | Bruker CALID
Revenues disaggregated by Group
Total revenue	203.2	192.4
Operating segments | Bruker Nano
Revenues disaggregated by Group
Total revenue	178.5	154.4
Operating segments | BEST
Revenues disaggregated by Group
Total revenue	59.7	52.4
Eliminations
Revenues disaggregated by Group
Total revenue	$ (4.2)	$ (3.9)