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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The amount of acquisition cost of a business combination allocated to inventory, including finished goods, work-in-process, and raw materials.

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The amount of acquisition cost of a business combination allocated to receivables.

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Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The amount of identifiable intangible assets recognized as of the acquisition date.

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Acquisitions (Details 2) (Nano surfaces business, USD $) In Millions, except Per Share data	3 Months Ended	9 Months Ended
	Sep. 30, 2010	Sep. 30, 2010	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2010	Oct. 31, 2010
Acquisitions
Cash consideration						$ 230.4
Cash consideration financed through revolving credit agreement						167.6
Purchase price paid into escrow						22.9
Payment for net assets in China			7.2
Acquisition Date Fair Values
Accounts receivable				21.8	21.8
Inventory				33.5	33.5
Other current assets				8.1	8.1
Property, plant and equipment				18.0	18.0
Intangible assets				112.5	110.5
Goodwill				49.0	51.0
Liabilities assumed				(12.5)	(12.5)
Total consideration transferred				230.4	230.4
Pro forma financial information
Revenue	342.1	980.8
Net income attributable to Bruker Corporation	16.7	54.5
Net income per common share attributable to Bruker Corporation shareholders:
Basic (in dollars per share)	$ 0.10	$ 0.33
Diluted (in dollars per share)	$ 0.10	$ 0.33
Measurement Period Adjustments
Acquisition Date Fair Values
Intangible assets				2.0
Goodwill				$ (2.0)