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Acquisitions - Additional Information (Details) - USD ($) $ in Millions |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Dec. 24, 2021 | Dec. 01, 2020 | Dec. 01, 2020 | May 01, 2019 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Closing payment of net of cash acquired |  |  |  |  | $ 546.8 |  | $ 546.8 |  |
Additional cash payment |  |  |  |  |  |  | 8.0 |  |
Stock Issued During Period, Value, Restricted Stock Award, Gross |  |  |  |  |  |  | 61.5 |  |
Net Sales |  |  |  |  | 1,455.9 | $ 1,317.3 | 4,339.9 | $ 3,939.6 | $ 179.0
Business Combination Provisional Information Initial Accounting Incomplete Adjustment Consideration Transferred |  |  |  |  |  |  | $ 3.5 |  |
Hero Acquisition adjustments |  |  |  |  | 1.3 |  |  |  |
Maximum |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Average life of the intangible assets, years |  |  |  | 20 years |  |  |  |  |
Thera Breath Acquisition |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Additional cash payment | $ 14.0 |  |  |  |  |  |  |  |
Financing term loan period |  |  |  |  |  |  | 3 years |  |
Underwritten public offering senior notes |  |  |  |  | 400.0 |  | $ 400.0 |  |
Thera Breath Acquisition | Maximum |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Business acquisition, period | 4 years |  |  |  |  |  | 4 years |  |
Average life of the intangible assets, years |  |  |  |  |  |  | 20 years |  |
Thera Breath Acquisition | Minimum |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Business acquisition, period | 2 years |  |  |  |  |  | 2 years |  |
Average life of the intangible assets, years |  |  |  |  |  |  | 10 years |  |
Zicam Acquisition |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Additional cash payment |  |  | $ 20.0 |  |  |  |  |  |
Business acquisition, period |  |  | 5 years |  |  |  |  |  |
Zicam Acquisition | Maximum |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Average life of the intangible assets, years |  | 20 years |  |  |  |  |  |  |
Hero working capital adjustment |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Closing payment of net of cash acquired | $ 556.0 |  |  |  |  |  |  |  |
Net Sales |  |  |  |  |  |  | $ 100.0 |  |
Proceeds from term loan for business acquisition |  |  |  |  |  |  | 400.0 |  |
Cash Payments |  |  |  |  |  |  | 3.8 |  |
Business Acquisition Liabilities |  |  |  |  | $ 14.0 |  | $ 14.0 |  |

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