Other Intangible Assets - Schedule of Amortization Expense (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
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)