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Business Combination - Narrative (Details) - USD ($) $ in Millions								3 Months Ended	12 Months Ended
	Nov. 29, 2021	Jun. 17, 2021	Mar. 01, 2021	Feb. 22, 2021	Jan. 04, 2021	Sep. 28, 2020	Aug. 23, 2020	Dec. 25, 2021	Sep. 25, 2021	Dec. 26, 2020
Business Acquisition [Line Items]
Goodwill								$ 3,329.4	$ 3,281.6
Bolder Surgical
Business Acquisition [Line Items]
Consideration transferred	$ 160.1
Intangible assets, fair value (percentage)	16.00%
Developed technology	$ 73.6
Customer relationships	21.7
Trade names	1.4
Goodwill	$ 67.6
Bolder Surgical | Developed Technology
Business Acquisition [Line Items]
Intangible assets useful life	10 years
Bolder Surgical | Customer Relationships
Business Acquisition [Line Items]
Intangible assets useful life	10 years
Bolder Surgical | Trade Names
Business Acquisition [Line Items]
Intangible assets useful life	10 years
Mobidiag Oy
Business Acquisition [Line Items]
Consideration transferred		$ 729.6
Developed technology		285.0
Customer relationships		20.9
Trade names		20.0
Goodwill		$ 431.7
Mobidiag Oy | Minimum
Business Acquisition [Line Items]
Intangible assets, fair value (percentage)		15.00%
Mobidiag Oy | Maximum
Business Acquisition [Line Items]
Intangible assets, fair value (percentage)		19.00%
Mobidiag Oy | Developed Technology
Business Acquisition [Line Items]
Intangible assets useful life		11 years 8 months 12 days
Mobidiag Oy | Customer Relationships
Business Acquisition [Line Items]
Intangible assets useful life		9 years 1 month 6 days
Mobidiag Oy | Trade Names
Business Acquisition [Line Items]
Intangible assets useful life		11 years 7 months 6 days
Biotheranostics
Business Acquisition [Line Items]
Consideration transferred				$ 231.3
Intangible assets, fair value (percentage)				18.00%
Intangible assets useful life				10 years
Developed technology				$ 160.3
Trade names				2.1
Goodwill				$ 80.9
Diagenode
Business Acquisition [Line Items]
Consideration transferred			$ 155.1
Intangible assets useful life			10 years
Developed technology			$ 69.8
Customer relationships			9.2
Goodwill			$ 83.5
Diagenode | Developed Technology
Business Acquisition [Line Items]
Intangible assets, fair value (percentage)			14.50%
Diagenode | Customer Relationships
Business Acquisition [Line Items]
Intangible assets, fair value (percentage)			13.50%
Somatex Medical Technologies
Business Acquisition [Line Items]
Consideration transferred					$ 62.9
Developed technology					38.0
Customer relationships					1.2
Trade names					0.9
Goodwill					32.4
Net acquired tangible assets and liabilities					$ 9.6
NXC Imaging
Business Acquisition [Line Items]
Consideration transferred						$ 5.6
NXC Imaging | Customer Relationships
Business Acquisition [Line Items]
Intangible assets useful life						5 years
Acessa Health
Business Acquisition [Line Items]
Contingent consideration							$ 81.8		75.1	$ 4.6
Annual incremental revenue growth period							3 years
Change in contingent consideration								$ 4.1	$ 6.7

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