Business Segment Information - Schedule of Segment Operating Results and Other Financial Data (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 282.7	$ 303.0
Segment Profit	20.5	16.6
Other income (expense), net	1.4	(1.5)
Income from continuing operations before income taxes	17.9	10.6
Operating segments
Segment Reporting Information [Line Items]
Net sales	284.0	304.0
Segment Profit	29.1	27.0
Intersegment sales
Segment Reporting Information [Line Items]
Net sales	(1.3)	(1.0)
Corporate expense
Segment Reporting Information [Line Items]
Segment Profit	(8.5)	(9.6)
Interest expense, net	(4.0)	(4.5)
Other income (expense), net	1.3	(2.3)
Sealing Products
Segment Reporting Information [Line Items]
Net sales	214.9	223.7
Sealing Products | Operating segments
Segment Reporting Information [Line Items]
Net sales	216.1	224.5
Segment Profit	25.7	20.8
Engineered Products
Segment Reporting Information [Line Items]
Net sales	67.8	79.3
Engineered Products | Operating segments
Segment Reporting Information [Line Items]
Net sales	67.9	79.5
Segment Profit	$ 3.4	$ 6.2