Shareholders' Equity - Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Consolidated net income	$ 49.7	$ 58.7	$ 111.8	$ 116.5
Foreign currency translation adjustments	(76.9)	14.3	(107.4)	(53.6)
Derivatives designated as hedging instruments, net of tax	41.5	0.4	62.6	48.8
Pension liability adjustments, net of tax	1.6	0.0	2.1	3.3
Comprehensive income	15.9	73.4	69.1	115.0
Less: Comprehensive income (loss) attributable to noncontrolling interests	(0.4)	(0.7)	(0.2)	0.2
Less: Comprehensive loss attributable to redeemable noncontrolling interest	(0.5)	0.0	(0.7)	0.0
Comprehensive income attributable to Bruker Corporation	$ 16.8	$ 74.1	$ 70.0	$ 114.8