Revenue Recognition - Disaggregation of Net Sales by Place of Manufacture and to Location of Customer (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	$ 459.6	$ 499.8	$ 1,587.8	$ 1,443.4
Point of origin
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	459.6	499.8	1,587.8	1,443.4
Point of origin | Reportable Geographical Components | United States
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	330.3	297.6	980.4	787.5
Point of origin | Reportable Geographical Components | Germany
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	213.5	254.2	762.0	724.2
Point of origin | Reportable Geographical Components | Canada
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	105.1	88.6	313.1	288.8
Point of origin | Reportable Geographical Components | Belgium
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	76.0	69.6	256.3	212.0
Point of origin | Reportable Geographical Components | Norway
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	64.7	63.4	211.1	198.5
Point of origin | Eliminations
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	(330.0)	(273.6)	(935.1)	(767.6)
Point of destination
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	459.6	499.8	1,587.8	1,443.4
Point of destination | Europe
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	197.5	248.0	731.6	712.1
Point of destination | North America
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	182.5	174.3	558.4	476.9
Point of destination | Other
Entity Wide Information Revenue From External Customer [Line Items]
Net sales	$ 79.6	$ 77.5	$ 297.8	$ 254.4