Operating Segment and Geographic Information (Information About Reportable Segments) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Net sales	$ 908.4	$ 971.2	$ 932.9
Operating income	85.3	144.4	117.2
Total assets	1,517.2	1,646.2	1,598.6
Capital expenditures	57.0	116.8	71.1
Depreciation & amortization	51.1	45.9	43.3
Investment in unconsolidated joint ventures	11.1	14.1	16.3
Equity income in unconsolidated joint ventures	1.8	4.4	7.0
Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	509.7	530.2	534.5
Operating income	2.6	77.1	50.2
Total assets	762.8	854.2	826.7
Capital expenditures	30.5	58.9	38.9
Depreciation & amortization	27.6	21.7	22.9
Investment in unconsolidated joint ventures	0.0	0.0	0.0
Equity income in unconsolidated joint ventures	0.0	0.0	0.0
Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	379.0	420.0	378.0
Operating income	76.1	60.4	60.1
Total assets	742.0	778.7	759.6
Capital expenditures	25.9	57.6	31.8
Depreciation & amortization	22.8	23.5	19.7
Investment in unconsolidated joint ventures	11.1	14.1	16.3
Equity income in unconsolidated joint ventures	1.8	4.4	7.0
Other
Segment Reporting Information [Line Items]
Net sales	19.7	21.0	20.4
Operating income	6.6	6.9	6.9
Total assets	12.4	13.3	12.3
Capital expenditures	0.6	0.3	0.4
Depreciation & amortization	0.7	0.7	0.7
Investment in unconsolidated joint ventures	0.0	0.0	0.0
Equity income in unconsolidated joint ventures	0.0	0.0	0.0
Recognized over time
Segment Reporting Information [Line Items]
Net sales	269.5	259.3	277.8
Recognized over time | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	234.1	227.0	244.1
Recognized over time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	19.6	15.9	14.9
Recognized over time | Other
Segment Reporting Information [Line Items]
Net sales	15.8	16.4	18.8
Recognized at a point in time
Segment Reporting Information [Line Items]
Net sales	638.9	711.9	655.1
Recognized at a point in time | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	275.6	303.2	290.4
Recognized at a point in time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	359.4	404.1	363.1
Recognized at a point in time | Other
Segment Reporting Information [Line Items]
Net sales	$ 3.9	$ 4.6	$ 1.6