Debt - Covenant Compliance (Details)	9 Months Ended
Sep. 30, 2018
Debt
Actual leverage ratio	0.68
Actual interest coverage ratio	20.9

The entity's actual interest coverage ratio, calculated as defined in the terms of the debt agreement.

No definition available.

Name:	brkr_DebtInstrumentActualInterestCoverageRatio
Namespace Prefix:	brkr_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration