Segment Reporting and Geographical Area Data - Segment Reporting on Basis of Geographical Location (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ 1,948.8	$ 1,963.7	$ 1,483.4
Income before income taxes	174.4	184.6	134.4
Long-lived assets at year end	367.6	310.2	304.9
Goodwill	399.3	358.8	364.3
Identifiable assets at year end	1,707.4	1,603.7	1,570.9
United States & North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	1,272.8	1,244.9	821.6
Income before income taxes	107.8	109.1	54.6
Long-lived assets at year end	156.4	147.0	137.3
Identifiable assets at year end	630.2	570.9	464.9
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	958.9	1,049.4	927.5
Income before income taxes	81.7	68.4	72.5
Long-lived assets at year end	193.9	163.0	167.4
Identifiable assets at year end	605.9	626.3	698.4
Rest of World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	51.0	67.7	66.4
Income before income taxes	(15.1)	7.1	7.3
Long-lived assets at year end	17.3	0.2	0.2
Identifiable assets at year end	72.0	47.7	43.3
Sales Between Areas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net sales	$ (333.9)	$ (398.3)	$ (332.1)