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v3.24.2

Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 29, 2024 | Mar. 30, 2024 | Dec. 30, 2023 | Jul. 01, 2023 | Jun. 29, 2024 | Jul. 01, 2023
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Impairment of intangible assets |  |  |  | $ 174.8 |  |
Intangible asset and equipment impairment charges |  |  |  | 186.9 | $ 44.8 | $ 223.8
Impairment of intangible assets and equipment | $ 0.4 |  |  | 44.3 | 5.6 | 44.3
Impairment, assets held-for-use |  |  |  | 12.1 |  |
Finite-lived intangible assets, fair value |  |  |  | 65.8 |  | 65.8
Property, plant, and equipment, fair value |  |  |  | 4.6 |  | 4.6
Ultrasound imaging assets |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Intangible asset and equipment impairment charges |  |  |  | 26.4 |  |
Ultrasound imaging assets, equipment |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Intangible asset and equipment impairment charges |  |  |  | 5.8 |  |
Mobidiag | Right of use asset |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Intangible asset and equipment impairment charges |  |  | $ 12.5 |  |  |
In-process research and development |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Intangible asset and equipment impairment charges |  |  |  | 10.5 |  |
In-process research and development | Mobidiag |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Intangible asset and equipment impairment charges |  | $ 4.3 |  |  |  |
Intangible assets, current | 22.4 |  | 22.4 |  | 22.4 |
Impairment of intangible assets and equipment |  |  | 4.3 |  |  |
In-process research and development |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Intangible asset and equipment impairment charges |  |  |  | 10.5 |  |
Indefinite-lived intangibles, fair value |  |  |  | 26.5 |  | $ 26.5
Developed technology |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Impairment of intangible assets | 13.3 | 25.9 |  |  |  |
Intangible asset and equipment impairment charges |  |  |  | 153.7 |  |
Finite-lived intangibles | 0.0 | 13.9 |  |  | 0.0 |
Trade Names |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Impairment of intangible assets | 0.4 | 0.9 |  |  |  |
Intangible asset and equipment impairment charges |  |  |  | $ 10.7 |  |
Finite-lived intangibles | 0.0 | $ 0.5 |  |  | 0.0 |
SSI Ultrasound Imaging Business |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Finite-lived intangibles |  |  | $ 0.0 |  |  |
2028 Senior Notes |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Fair value of debt instrument | 382.9 |  |  |  | 382.9 |
2029 Senior Notes |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Fair value of debt instrument | 853.3 |  |  |  | 853.3 |
Credit Agreement |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Borrowed principal | $ 1,200.0 |  |  |  | $ 1,200.0 |
2028 Senior Notes | Senior Notes |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Stated interest rate | 4.625% |  |  |  | 4.625% |
2029 Senior Notes | Senior Notes |  |  |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |  |  |
Stated interest rate | 3.25% |  |  |  | 3.25% |

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