CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Millions	Total Shareholders' Equity Attributable to Bruker Corporation	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests in Consolidated Subsidiaries	Total
Balance at beginning of period at Dec. 31, 2017	$ 725.4	$ 1.7	$ (401.2)	$ 155.9	$ 942.0	$ 27.0	$ 8.1	$ 733.5
Balance (in shares) at Dec. 31, 2017		155,865,977	16,009,099
Increase (Decrease) in Stockholders' Equity
Restricted shares terminated (in shares)		(6,553)	6,553
Stock options exercised	2.9			2.9				2.9
Stock options exercised (in shares)		180,890
Restricted stock units vested (in shares)		42,762
Stock based compensation	2.5			2.5				2.5
Shares issued for acquisition	(0.1)		$ (0.1)					(0.1)
Shares issued for acquisition (in shares)		(2,123)	2,123
Treasury stock acquired (in shares)		(1,055)	1,055
Adoption impact from new revenue standard | ASC 606	5.9				5.9		0.2	6.1
Cash dividends paid to common stockholders	(6.3)				(6.3)			(6.3)
Consolidated net income	27.0				27.0		0.4	27.4
Other comprehensive income (loss)	24.2					24.2	0.1	24.3
Balance at end of period at Mar. 31, 2018	781.5	$ 1.7	$ (401.3)	161.3	968.6	51.2	8.8	790.3
Balance (in shares) at Mar. 31, 2018		156,079,898	16,018,830
Balance at beginning of period at Dec. 31, 2018	896.6	$ 1.7	$ (401.5)	176.9	1,102.5	17.0	8.5	905.1
Balance (in shares) at Dec. 31, 2018		156,609,340	16,024,880
Increase (Decrease) in Stockholders' Equity
Stock options exercised	3.1			3.1				3.1
Stock options exercised (in shares)		167,177
Restricted stock units vested (in shares)		35,072
Stock based compensation	2.7			2.7				2.7
Shares issued for acquisition (in shares)		3,087	(3,087)
Cash dividends paid to common stockholders	(6.3)				(6.3)			(6.3)
Consolidated net income	30.8				30.8		(0.1)	30.7
Other comprehensive income (loss)	(13.7)					(13.7)		(13.7)
Balance at end of period at Mar. 31, 2019	$ 913.2	$ 1.7	$ (401.5)	$ 182.7	$ 1,127.0	$ 3.3	$ 8.4	$ 921.6
Balance (in shares) at Mar. 31, 2019		156,814,676	16,021,793