Shareholders' Equity - Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2016	Mar. 31, 2015
Summary of comprehensive income
Consolidated net income	$ 23.6	$ 6.9
Foreign currency translation adjustments	33.6	(72.9)
Pension liability adjustments	(1.0)	8.3
Net comprehensive income (loss)	56.2	(57.7)
Less: Comprehensive income attributable to noncontrolling interests	0.2	0.4
Comprehensive income (loss) attributable to Bruker Corporation	$ 56.0	$ (58.1)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.

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