Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income
Consolidated net income	$ 16.9	$ 39.9	$ 45.9	$ 64.9
Foreign currency translation adjustments	37.6	11.9	12.3	(4.0)
Unrealized losses on interest rate swap:
Unrealized holding losses arising during the period				(0.2)
Less reclassification adjustments for settlements included in the determination of net income		0.2		1.1
Pension liability adjustments	(1.0)	(0.2)	0.7	0.1
Net comprehensive income	53.5	51.8	58.9	61.9
Less: Comprehensive income attributable to noncontrolling interests	0.3	0.1	1.0	0.2
Comprehensive income attributable to Bruker Corporation	53.2	51.7	57.9	61.7
Foreign Currency Translation:
Balance at beginning of period			170.3
Other comprehensive income before reclassifications			12.3
Net current period other comprehensive income (loss)	37.6	11.9	12.3	(4.0)
Balance at end of period	182.6		182.6
Pension Liability Adjustment
Balance at beginning of period			(32.5)
Other comprehensive income before reclassifications			1.8
Realized loss on reclassification			(1.1)
Net current period other comprehensive income (loss)	(1.0)	(0.2)	0.7	0.1
Balance at end of period	(31.8)		(31.8)
Accumulated Other Comprehensive Income
Balance at beginning of period			137.8
Other comprehensive income before reclassifications			14.1
Realized loss on reclassification			(1.1)
Net current period other comprehensive income			13.0
Balance at end of period	150.8		150.8
Realized loss on reclassification, tax			$ 0.2