| Document and Entity Information | Apr. 13, 2021 |
| Cover [Abstract] | |
| Entity Registrant Name | BRUKER CORP |
| Amendment Flag | false |
| Entity Central Index Key | 0001109354 |
| Document Type | 8-K |
| Document Period End Date | Apr. 13, 2021 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 000-30833 |
| Entity Tax Identification Number | 04-3110160 |
| Entity Address, Address Line One | 40 Manning Road |
| Entity Address, City or Town | Billerica |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 01821 |
| City Area Code | (978) |
| Local Phone Number | 663-3660 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.01 par value per share |
| Trading Symbol | BRKR |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
