Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net revenue	$ 470.3	$ 393.9	$ 371.7	$ 375.4	$ 478.2	$ 396.1	$ 396.0	$ 353.5	$ 1,611.3	$ 1,623.8	$ 1,808.9
Gross profit	220.4	185.2	170.1	166.8	211.5	167.5	169.4	160.2	742.5	708.6	763.3
Operating income	76.9	45.9	20.4	34.0	70.7	28.2	31.6	15.2	177.2	145.7	105.4
Net income attributable to Bruker Corporation	$ 69.0	$ 46.5	$ 14.5	$ 23.6	$ 61.4	$ 11.8	$ 21.9	$ 6.5	$ 153.6	$ 101.6	$ 56.7
Net income per common share attributable to Bruker Corporation shareholders:
Basic (in dollars per share)	$ 0.43	$ 0.29	$ 0.09	$ 0.14	$ 0.37	$ 0.07	$ 0.13	$ 0.04	$ 0.95	$ 0.60	$ 0.34
Diluted (in dollars per share)	$ 0.43	$ 0.29	$ 0.09	$ 0.14	$ 0.36	$ 0.07	$ 0.13	$ 0.04	$ 0.95	$ 0.60	$ 0.33
Impairment of assets	$ 0.1		$ 0.7		$ 0.3	$ 2.5	$ 1.8		$ 0.8	$ 4.6	$ 11.5
Gain on bargain purchase									9.2
Oxford Instruments Superconducting Wire LLC
Net income per common share attributable to Bruker Corporation shareholders:
Gain on bargain purchase	$ 9.2								$ 9.2