CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY AND COMPREHENSIVE INCOME (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	Comprehensive Income
Balance at Dec. 31, 2008	$ 312.7	$ 311.9	$ 1.6	$ (0.1)		$ 172.6	$ 137.8	$ 0.8
Balance (in shares) at Dec. 31, 2008			164,068,252	10,469
Increase (Decrease) in Stockholders' Equity
Stock options exercised	1.5	1.5			1.5
Stock options exercised (in shares)			305,958
Stock based compensation	6.3	6.3			6.3
Excess tax benefit related to exercise of stock awards	0.6	0.6			0.6
Treasury stock acquired (in shares)			(2,826)	2,826
Fair value of noncontrolling interests in connection with business combinations	1.0							1.0
Comprehensive income:
Consolidated net income	81.0	81.2				81.2		(0.2)	81.0
Foreign currency translation adjustments	8.6	8.6					8.6		8.6
Unrealized losses on interest rate swap:
Unrealized holding losses arising during the period	(1.2)	(1.2)					(1.2)		(1.2)
Less reclassification adjustments for settlements included in the determination of net income	2.5	2.5					2.5		2.5
Changes in pensions, net of tax of $0.6, $2.6 and $1.4 million for the Year ended 2011, 2010 and 2009 respectively	5.8	5.8					5.8		5.8
Net comprehensive income	96.7	96.9						(0.2)	96.7
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)
Comprehensive income:
Consolidated net income	96.8	95.4				95.4		1.4	96.8
Foreign currency translation adjustments	8.1	8.3					8.3	(0.2)	8.1
Unrealized losses on interest rate swap:
Unrealized holding losses arising during the period	(2.1)	(2.1)					(2.1)		(2.1)
Less reclassification adjustments for settlements included in the determination of net income	2.6	2.6					2.6		2.6
Changes in pensions, net of tax of $0.6, $2.6 and $1.4 million for the Year ended 2011, 2010 and 2009 respectively	(9.9)	(9.9)					(9.9)		(9.9)
Net comprehensive income	95.5	94.3						1.2	95.5
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 acquisition (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)
Comprehensive income:
Consolidated net income	94.0	92.3				92.3		1.7	94.0
Foreign currency translation adjustments	(14.7)	(14.7)					(14.7)		(14.7)
Unrealized losses on interest rate swap:
Unrealized holding losses arising during the period	(0.3)	(0.3)					(0.3)		(0.3)
Less reclassification adjustments for settlements included in the determination of net income	2.2	2.2					2.2		2.2
Changes in pensions, net of tax of $0.6, $2.6 and $1.4 million for the Year ended 2011, 2010 and 2009 respectively	2.9	2.9					2.9		2.9
Net comprehensive income	84.1	82.4						1.7	84.1
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