Earnings Per Share - Computation (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net income attributable to Bruker Corporation, as reported	$ 296.6	$ 277.1	$ 157.8
Weighted average common shares outstanding:
Weighted average common shares outstanding-basic	148.6	151.4	153.4
Effect of dilutive securities:
Stock options, restricted stock awards and restricted stock units	0.8	1.5	1.2
Weighted average common shares outstanding - diluted	149.4	152.9	154.6
Net income per common share attributable to Bruker Corporation shareholders:
Basic	$ 2.00	$ 1.83	$ 1.03
Diluted	$ 1.99	$ 1.81	$ 1.02