CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Millions, except Share data, unless otherwise specified	Total	Total Shareholders' Equity Attributable to Bruker Corporation	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Noncontrolling Interests in Consolidated Subsidiaries
Balance at Dec. 31, 2009	$ 418.8	$ 417.2	$ 1.6	$ (0.1)	$ 8.4	$ 253.8	$ 153.5	$ 1.6
Balance (in shares) at Dec. 31, 2009			164,371,384	13,295
Increase (Decrease) in Stockholders' Equity
Stock options exercised	6.0	6.0			6.0
Stock options exercised (in shares)			861,747
Stock based compensation	6.9	6.9			6.9
Excess tax benefit related to exercise of stock awards	0.3	0.3			0.3
Treasury stock acquired				(0.1)	0.1
Treasury stock acquired (in shares)			(3,924)	3,924
Distributions to noncontrolling interests	(0.1)							(0.1)
Consolidated net income	96.8	95.4				95.4		1.4
Other comprehensive loss	(1.3)	(1.1)					(1.1)	(0.2)
Balance at Dec. 31, 2010	527.4	524.7	1.6	(0.2)	21.7	349.2	152.4	2.7
Balance (in shares) at Dec. 31, 2010			165,229,207	17,219
Increase (Decrease) in Stockholders' Equity
Shares issued in connection with acquisitions	2.9	2.9			2.9
Shares issued in connection with acquisitions (in shares)			134,362
Restricted shares issued in connection with acquisitions (in shares)			156,823
Stock options exercised	3.4	3.4	0.1		3.3
Stock options exercised (in shares)			354,559
Stock based compensation	7.9	7.9			7.9
Excess tax benefit related to exercise of stock awards	0.2	0.2			0.2
Treasury stock acquired (in shares)			(3,046)	3,046
Distributions to noncontrolling interests	(1.0)							(1.0)
Consolidated net income	94.0	92.3				92.3		1.7
Other comprehensive loss	(9.9)	(9.9)					(9.9)
Balance at Dec. 31, 2011	624.9	621.5	1.7	(0.2)	36.0	441.5	142.5	3.4
Balance (in shares) at Dec. 31, 2011			165,871,905	20,265
Increase (Decrease) in Stockholders' Equity
Restricted shares issued in connection with acquisitions (in shares)			188,028
Stock options exercised	4.5	4.5			4.5
Stock options exercised (in shares)			545,778
Stock based compensation	7.8	7.8			7.8
Treasury stock acquired (in shares)			(1,284)	1,284
Distributions to noncontrolling interests	(0.6)							(0.6)
Consolidated net income	78.2	77.5				77.5		0.7
Other comprehensive loss	(5.1)	(4.7)					(4.7)	(0.4)
Balance at Dec. 31, 2012	$ 709.7	$ 706.6	$ 1.7	$ (0.2)	$ 48.3	$ 519.0	$ 137.8	$ 3.1
Balance (in shares) at Dec. 31, 2012			166,604,427	21,549