Shareholders' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2000
Additional share-based compensation disclosures
Total stock-based compensation	$ 9.4	$ 6.6	$ 7.8
Stock options
Additional share-based compensation disclosures
Total stock-based compensation	6.7	5.3	6.5
Stock options | Minimum
Stock-Based Compensation
Vesting period	3 years
Stock options | Maximum
Stock-Based Compensation
Vesting period	5 years
Restricted stock
Additional share-based compensation disclosures
Total stock-based compensation	2.7	1.3	1.3
The 2000 Plan
Stock-Based Compensation
Plan expiration term				10 years
Bruker Corporation Stock Plan
Stock-Based Compensation
Common stock authorized for issuance (in shares)	8,000,000
Bruker Corporation Stock Plan | Minimum
Stock-Based Compensation
Vesting period	3 years
Bruker Corporation Stock Plan | Maximum
Stock-Based Compensation
Vesting period	5 years
Bruker Corporation Stock Plan | Stock options
Stock option, Number of Shares
Outstanding at the beginning of the period (in shares)	4,877,564
Granted (in shares)	1,003,170
Exercised (in shares)	(851,820)
Forfeited (in shares)	(218,326)
Outstanding at the end of the period (in shares)	4,810,588	4,877,564
Exercisable at the end of the period (in shares)	2,544,726
Exercisable and expected to vest at the end of the period (in shares)	4,695,029
Stock options, Weighted Average exercise price
Outstanding at the beginning of the period (in dollars per share)	$ 13.12
Granted (in dollars per share)	$ 20.70
Exercised (in dollars per share)	$ 9.62
Forfeited (in dollars per share)	$ 18.61
Outstanding at the end of the period (in dollars per share)	$ 15.24	$ 13.12
Exercisable at the end of the period (in shares)	$ 12.31
Exercisable and expected to vest at the end of the period (in dollars per share)	$ 15.16
Stock options, Weighted Average Remaining Contractual Term
Outstanding at the end of the period	6 years 4 months 24 days
Exercisable at the end of the period	4 years 8 months 12 days
Exercisable and expected to vest at the end of the period	6 years 4 months 24 days
Stock options, Aggregate Intrinsic Value
Outstanding at the end of the period (in dollars)	22.6
Exercisable at the end of the period (in dollars)	18.7
Exercisable and expected to vest at the end of the period (in dollars)	22.4
Fair value of the Company's common stock price (in dollars per share)	$ 19.62
Weighted average fair values of options granted (in dollars per share)	$ 10.81	$ 10.37	$ 7.11
Intrinsic value of options exercised	10.0	8.1	3.8
Additional share-based compensation disclosures
Expected pre-tax stock-based compensation expense	18.7
Weighted average remaining service period	2 years 3 months 18 days
Bruker Corporation Stock Plan | Restricted stock
Restricted stock, Number of Shares
Outstanding at the beginning of the period (in shares)	357,948
Granted (in shares)	112,129
Vested (in shares)	(160,352)
Outstanding at the end of the period (in shares)	309,725	357,948
Restricted stock, Weighted-average grant date fair value
Outstanding at the beginning of the period (in dollars per share)	$ 16.65
Granted (in dollars per share)	$ 20.68
Vested (in dollars per share)	$ 18.41
Outstanding at the end of the period (in dollars per share)	$ 17.20	$ 16.65
Additional share-based compensation disclosures
Expected pre-tax stock-based compensation expense	4.6
Weighted average remaining service period	2 years 10 months 24 days
Fair value of shares vested	$ 3.0	$ 1.4	$ 1.2
Bruker Corporation Stock Plan | Restricted stock | Minimum
Stock-Based Compensation
Period of service restrictions	3 years
Bruker Corporation Stock Plan | Restricted stock | Maximum
Stock-Based Compensation
Period of service restrictions	5 years