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Other Intangible Assets - Schedule of Amortization Expense (Detail) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
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Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | $ 315.1 | $ 291.1 | $ 295.2
Accumulated amortization | (257.8) | (246.1) | $ (237.7)
Product Rights [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 34.0 | 34.0 |
Accumulated amortization | (34.0) | (34.0) |
Brand Names [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 8.9 | 8.9 |
Accumulated amortization | (8.4) | (7.8) |
Technology [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 55.1 | 55.1 |
Accumulated amortization | (42.3) | (40.0) |
Customer Relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 131.6 | 122.9 |
Accumulated amortization | (105.4) | (96.9) |
Internally Developed Software [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 60.5 | 45.2 |
Accumulated amortization | (42.7) | (42.4) |
Other [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount | 25.0 | 25.0 |
Accumulated amortization | $ (25.0) | $ (25.0) |

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