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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The current portion of nonphysical assets, excluding financial assets, if these assets are classified into the current and noncurrent portions.

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Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 30, 2023	Dec. 31, 2022
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Intangible asset impairment charge	$ 4.3	$ 0.0
Right of use asset
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Intangible asset impairment charge	12.5
In-process research and development \| Mobidiag
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Intangible asset impairment charge	4.3
Intangible Assets, Current	22.4
2028 Senior Notes
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value of debt instrument	386.3
2029 Senior Notes
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Fair value of debt instrument	858.0
Credit Agreement
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Borrowed principal	$ 1,200.0
2028 Senior Notes \| Senior Notes
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Stated interest rate	4.625%
2029 Senior Notes \| Senior Notes
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Stated interest rate	3.25%