Operating Segment Information (Net Sales by Geographic Area) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting Information [Line Items]
Net sales	$ 202.8	$ 214.2	$ 393.3	$ 427.6
Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	109.0	115.5	213.2	237.6
Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	89.4	94.7	172.0	180.4
Other
Segment Reporting Information [Line Items]
Net sales	4.4	4.0	8.1	9.6
Total Americas
Segment Reporting Information [Line Items]
Net sales	60.7	62.6	121.2	121.7
Total Americas | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	23.3	20.5	46.2	41.5
Total Americas | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	36.6	40.9	73.3	77.9
Total Americas | Other
Segment Reporting Information [Line Items]
Net sales	0.8	1.2	1.7	2.3
United States
Segment Reporting Information [Line Items]
Net sales	57.6	56.2	114.3	110.7
United States | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	22.9	17.8	45.0	38.2
United States | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	33.9	37.4	67.6	70.5
United States | Other
Segment Reporting Information [Line Items]
Net sales	0.8	1.0	1.7	2.0
Other Americas
Segment Reporting Information [Line Items]
Net sales	3.1	6.4	6.9	11.0
Other Americas | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	0.4	2.7	1.2	3.3
Other Americas | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	2.7	3.5	5.7	7.4
Other Americas | Other
Segment Reporting Information [Line Items]
Net sales	0.0	0.2	0.0	0.3
Total APAC
Segment Reporting Information [Line Items]
Net sales	82.9	100.9	158.7	188.6
Total APAC | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	47.4	65.9	93.7	123.9
Total APAC | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	33.6	33.5	61.5	60.5
Total APAC | Other
Segment Reporting Information [Line Items]
Net sales	1.9	1.5	3.5	4.2
China
Segment Reporting Information [Line Items]
Net sales	61.1	65.4	115.6	121.7
China | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	33.9	39.0	67.5	73.3
China | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	25.9	25.4	45.8	45.8
China | Other
Segment Reporting Information [Line Items]
Net sales	1.3	1.0	2.3	2.6
Other APAC
Segment Reporting Information [Line Items]
Net sales	21.8	35.5	43.1	66.9
Other APAC | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	13.5	26.9	26.2	50.6
Other APAC | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	7.7	8.1	15.7	14.7
Other APAC | Other
Segment Reporting Information [Line Items]
Net sales	0.6	0.5	1.2	1.6
Total EMEA
Segment Reporting Information [Line Items]
Net sales	59.2	50.7	113.4	117.3
Total EMEA | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	38.3	29.1	73.3	72.2
Total EMEA | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	19.2	20.3	37.2	42.0
Total EMEA | Other
Segment Reporting Information [Line Items]
Net sales	1.7	1.3	2.9	3.1
Germany
Segment Reporting Information [Line Items]
Net sales	19.5	23.7	36.9	53.7
Germany | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	13.4	16.7	25.0	38.6
Germany | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	5.9	6.9	11.5	14.8
Germany | Other
Segment Reporting Information [Line Items]
Net sales	0.2	0.1	0.4	0.3
Other EMEA
Segment Reporting Information [Line Items]
Net sales	39.7	27.0	76.5	63.6
Other EMEA | Advanced Electronics Solutions
Segment Reporting Information [Line Items]
Net sales	24.9	12.4	48.3	33.6
Other EMEA | Elastomeric Material Solutions
Segment Reporting Information [Line Items]
Net sales	13.3	13.4	25.7	27.2
Other EMEA | Other
Segment Reporting Information [Line Items]
Net sales	$ 1.5	$ 1.2	$ 2.5	$ 2.8