Earnings Per Share - Computation (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Earnings Per Share [Abstract]
Net income attributable to Bruker Corporation	$ 113.1	$ 427.2	$ 296.6
Weighted average common shares outstanding:
Weighted average common shares outstanding - basic	149	146.4	148.6
Effect of dilutive securities:
Stock options, restricted stock awards, restricted stock units and ESPP	0.5	0.8	0.8
Weighted average common shares outstanding - diluted	149.5	147.2	149.4
Net income per common share attributable to Bruker Corporation shareholders:
Basic	$ 0.76	$ 2.92	$ 2
Diluted	$ 0.76	$ 2.9	$ 1.99