Operating Segment Information (Income by Reportable Segments) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net sales	$ 202.8	$ 214.2	$ 393.3	$ 427.6
Cost of sales	138.8	141.1	272.3	286.3
Gross margin	64.0	73.1	121.0	141.3
Inventories, net	151.2	150.8	151.2	150.8	$ 142.3
Depreciation expense	7.4	6.6	14.6	13.3
Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	109.0	115.5	213.2	237.6
Cost of sales	78.1	79.5	153.2	166.9
Gross margin	30.9	36.0	60.0	70.7
Inventories, net	85.5	85.2	85.5	85.2
Depreciation expense	4.4	4.4	8.6	8.8
Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	89.4	94.7	172.0	180.4
Cost of sales	57.9	59.0	113.8	113.4
Gross margin	31.5	35.7	58.2	67.0
Inventories, net	64.1	64.0	64.1	64.0
Depreciation expense	2.8	2.0	5.6	4.1
Other
Segment Reporting Information [Line Items]
Net sales	4.4	4.0	8.1	9.6
Cost of sales	2.8	2.6	5.3	6.0
Gross margin	1.6	1.4	2.8	3.6
Inventories, net	1.6	1.6	1.6	1.6
Depreciation expense	0.2	0.2	0.4	0.4
Net sales - recognized over time
Segment Reporting Information [Line Items]
Net sales	41.2	51.4	85.7	105.0
Net sales - recognized over time | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	34.9	46.0	73.8	92.4
Net sales - recognized over time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	2.4	1.5	4.5	3.3
Net sales - recognized over time | Other
Segment Reporting Information [Line Items]
Net sales	3.9	3.9	7.4	9.3
Net sales - recognized at a point in time
Segment Reporting Information [Line Items]
Net sales	161.6	162.8	307.6	322.6
Net sales - recognized at a point in time | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	74.1	69.5	139.4	145.2
Net sales - recognized at a point in time | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	87.0	93.2	167.5	177.1
Net sales - recognized at a point in time | Other
Segment Reporting Information [Line Items]
Net sales	$ 0.5	$ 0.1	$ 0.7	$ 0.3