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Acquisitions - Schedule of Components and Fair Value Allocation of the Consideration Transferred in Connection with Acquisitions (Details) € in Millions, £ in Millions, $ in Millions								12 Months Ended
	Apr. 01, 2022 USD ($)	Apr. 01, 2022 GBP (£)	Jan. 18, 2022 USD ($)	Jan. 18, 2022 EUR (€)	Nov. 17, 2021 USD ($)	Nov. 17, 2021 EUR (€)	Aug. 24, 2021 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Consideration Transferred:
Fair value of redeemable noncontrolling interest - other shareholders								$ 0.0	$ 0.0	$ 0.0
Total consideration transferred								26.8	14.4
Allocation of Consideration Transferred:
Goodwill								457.6	339.5	320.4	$ 293.0
BSI Nano
Allocation of Consideration Transferred:
Goodwill								292.1	238.9	$ 228.0	$ 208.5
PreOmics GmbH [Member]
Consideration Transferred:
Total consideration transferred			$ 52.1	€ 46.1
PreOmics GmbH [Member] \| Bruker CALID
Consideration Transferred:
Cash paid								52.1
Cash acquired								(16.0)
Fair value of hybrid financial instruments - founders								20.9
Fair value of redeemable noncontrolling interest - other shareholders								6.8
Contingent consideration								0.0
Working capital adjustment								0.0
Total consideration transferred								63.8
Allocation of Consideration Transferred:
Accounts receivable								0.4
Inventories								0.6
Other current assets								0.7
Property, plant and equipment								1.3
Other assets								0.4
Goodwill								47.0
Liabilities assumed								(7.9)
Total consideration transferred								63.8
PreOmics GmbH [Member] \| Bruker CALID \| Technology
Allocation of Consideration Transferred:
Intangible assets								12.5
PreOmics GmbH [Member] \| Bruker CALID \| Customer relationships
Allocation of Consideration Transferred:
Intangible assets								6.9
PreOmics GmbH [Member] \| Bruker CALID \| Backlog
Allocation of Consideration Transferred:
Intangible assets								0.0
PreOmics GmbH [Member] \| Bruker CALID \| Trade name
Allocation of Consideration Transferred:
Intangible assets								1.9
Optimal [Member]
Consideration Transferred:
Contingent consideration	$ 0.4	£ 0.3
Optimal [Member] \| Bruker BioSpin
Consideration Transferred:
Cash paid								40.3
Cash acquired								(6.2)
Fair value of hybrid financial instruments - founders								0.0
Fair value of redeemable noncontrolling interest - other shareholders								0.0
Contingent consideration								0.4
Working capital adjustment								0.0
Total consideration transferred								34.5
Allocation of Consideration Transferred:
Accounts receivable								1.9
Inventories								0.0
Other current assets								0.8
Property, plant and equipment								0.1
Other assets								0.8
Goodwill								18.6
Liabilities assumed								(8.8)
Total consideration transferred								34.5
Optimal [Member] \| Bruker BioSpin \| Technology
Allocation of Consideration Transferred:
Intangible assets								5.9
Optimal [Member] \| Bruker BioSpin \| Customer relationships
Allocation of Consideration Transferred:
Intangible assets								12.9
Optimal [Member] \| Bruker BioSpin \| Backlog
Allocation of Consideration Transferred:
Intangible assets								1.1
Optimal [Member] \| Bruker BioSpin \| Trade name
Allocation of Consideration Transferred:
Intangible assets								1.2
Inscopix Inc [Member] \| BSI Nano
Consideration Transferred:
Cash paid								101.5
Cash acquired								(12.1)
Fair value of hybrid financial instruments - founders								0.0
Fair value of redeemable noncontrolling interest - other shareholders								0.0
Contingent consideration								0.0
Working capital adjustment								(0.6)
Total consideration transferred								90.0
Allocation of Consideration Transferred:
Accounts receivable								3.2
Inventories								2.5
Other current assets								0.9
Property, plant and equipment								0.5
Other assets								4.7
Goodwill								52.2
Liabilities assumed								(24.6)
Total consideration transferred								90.0
Inscopix Inc [Member] \| BSI Nano \| Technology
Allocation of Consideration Transferred:
Intangible assets								26.6
Inscopix Inc [Member] \| BSI Nano \| Customer relationships
Allocation of Consideration Transferred:
Intangible assets								20.8
Inscopix Inc [Member] \| BSI Nano \| Backlog
Allocation of Consideration Transferred:
Intangible assets								0.0
Inscopix Inc [Member] \| BSI Nano \| Trade name
Allocation of Consideration Transferred:
Intangible assets								$ 3.2
SCI Instruments
Consideration Transferred:
Contingent consideration							$ 1.0
SCI Instruments \| BSI Nano
Consideration Transferred:
Cash paid									28.0
Contingent consideration									1.0
Working capital adjustment									(0.6)
Total consideration transferred									28.4
Allocation of Consideration Transferred:
Cash									0.0
Accounts receivable									0.0
Inventories									1.0
Other current assets									0.0
Property, plant and equipment									0.0
Goodwill									12.6
Deferred taxes									0.0
Liabilities assumed									(0.3)
Total consideration transferred									28.4
SCI Instruments \| BSI Nano \| Technology
Allocation of Consideration Transferred:
Intangible assets									7.1
SCI Instruments \| BSI Nano \| Customer relationships
Allocation of Consideration Transferred:
Intangible assets									6.4
SCI Instruments \| BSI Nano \| Backlog
Allocation of Consideration Transferred:
Intangible assets									1.2
SCI Instruments \| BSI Nano \| Trade name
Allocation of Consideration Transferred:
Intangible assets									0.4
Molecubes NV
Consideration Transferred:
Contingent consideration					$ 0.4	€ 0.4
Total consideration transferred					$ 21.1	€ 18.7
Molecubes NV \| Bruker BioSpin
Consideration Transferred:
Cash paid									21.1
Contingent consideration									0.4
Working capital adjustment									0.0
Total consideration transferred									21.5
Allocation of Consideration Transferred:
Cash									1.1
Accounts receivable									1.2
Inventories									1.5
Other current assets									0.3
Property, plant and equipment									0.1
Goodwill									14.1
Deferred taxes									1.6
Liabilities assumed									1.6
Total consideration transferred									21.5
Molecubes NV \| Bruker BioSpin \| Technology
Allocation of Consideration Transferred:
Intangible assets									3.4
Molecubes NV \| Bruker BioSpin \| Customer relationships
Allocation of Consideration Transferred:
Intangible assets									2.4
Molecubes NV \| Bruker BioSpin \| Backlog
Allocation of Consideration Transferred:
Intangible assets									0.1
Molecubes NV \| Bruker BioSpin \| Trade name
Allocation of Consideration Transferred:
Intangible assets									$ 0.5