Shareholders' Equity - Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Consolidated net income	$ 88.7	$ 88.4	$ 223.9	$ 200.2
Foreign currency translation adjustments	(52.2)	(88.3)	(16.1)	(195.7)
Derivatives designated as hedging instruments, net of tax	21.5	42.9	(5.1)	105.5
Pension liability adjustments, net of tax	0.0	1.6	0.8	3.7
Comprehensive income	58.0	44.6	203.5	113.7
Less: Comprehensive income (loss) attributable to noncontrolling interests	0.3	(0.3)	2.9	(0.5)
Less: Comprehensive loss attributable to redeemable noncontrolling interest	(0.8)	(0.6)	(1.1)	(1.3)
Comprehensive income attributable to Bruker Corporation	$ 58.5	$ 45.5	$ 201.7	$ 115.5