Revenue - Disaggregation (Details) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues disaggregated by Group
Total revenue		$ 638,900,000	$ 608,900,000	$ 1,822,300,000	$ 1,734,400,000
Revenue recognized at a point in time
Revenues disaggregated by Group
Total revenue		557,000,000.0	530,800,000	1,580,200,000	1,503,000,000.0
Revenue recognized over time
Revenues disaggregated by Group
Total revenue		81,900,000	78,100,000	242,100,000	231,400,000
United States
Revenues disaggregated by Group
Total revenue		191,800,000	163,200,000	518,300,000	442,000,000.0
Germany
Revenues disaggregated by Group
Total revenue		51,900,000	55,500,000	177,700,000	186,400,000
Rest of Europe
Revenues disaggregated by Group
Total revenue		151,700,000	155,400,000	425,400,000	459,900,000
CHINA
Revenues disaggregated by Group
Total revenue		111,600,000	105,400,000	291,000,000.0	252,600,000
Rest of Asia Pacific
Revenues disaggregated by Group
Total revenue		85,100,000	86,200,000	271,100,000	273,200,000
Other
Revenues disaggregated by Group
Total revenue		46,800,000	43,200,000	138,800,000	120,300,000
Operating segments | Bruker BioSpin
Revenues disaggregated by Group
Total revenue		175,700,000	186,500,000	493,300,000	494,400,000
Operating segments | Bruker CALID
Revenues disaggregated by Group
Total revenue		207,500,000	194,200,000	601,000,000.0	579,900,000
Operating segments | Bruker Nano
Revenues disaggregated by Group
Total revenue		199,100,000	174,900,000	559,800,000	504,600,000
Operating segments | BEST
Revenues disaggregated by Group
Total revenue		59,300,000	57,000,000.0	178,200,000	166,000,000.0
Eliminations
Revenues disaggregated by Group
Total revenue	[1]	$ (2,700,000)	$ (3,700,000)	$ (10,000,000.0)	$ (10,500,000)

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