Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Summary of comprehensive income
Consolidated net income	$ 12.9	$ 6.3	$ 42.9	$ 33.1
Foreign currency translation adjustments	(10.2)	(84.1)	(47.3)	(84.7)
Pension liability adjustments	2.3	1.1	11.1	1.0
Other				0.3
Net comprehensive income (loss)	5.0	(76.7)	6.7	(50.3)
Less: Comprehensive income attributable to noncontrolling interests	1.2	0.8	2.4	2.5
Comprehensive income (loss) attributable to Bruker Corporation	$ 3.8	$ (77.5)	$ 4.3	$ (52.8)