Earnings Per Share - Computation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income attributable to Bruker Corporation	$ 7.6	$ 57.1	$ 58.5	$ 133.6
Weighted average common shares outstanding:
Weighted average common shares outstanding - basic	147.4	146.8	146.3	146.8
Effect of dilutive securities:
Stock options and restricted stock units	0.6	0.9	0.7	0.8
Weighted average common shares outstanding - diluted	148	147.7	147	147.6
Net income per common share attributable to Bruker Corporation shareholders:
Basic	$ 0.05	$ 0.39	$ 0.4	$ 0.91
Diluted	$ 0.05	$ 0.39	$ 0.4	$ 0.91