Basis of Presentation, Organization and Summary of Significant Accounting Policies (Goodwill and Intangible Assets) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) Segment	Dec. 31, 2018 USD ($)
Indefinite-lived Intangible Assets [Line Items]
Number of reportable segments | Segment	4
Goodwill	$ 262,930	$ 264,885
Indefinite-lived other intangible asset	4,432	4,525
Definite-lived other intangible assets	154,515	172,483
Advanced Connectivity Solutions
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 51,694	51,694
Elastomeric Material Solutions
Indefinite-lived Intangible Assets [Line Items]
Sensitivity analysis, Discount rate used	10.30%
Goodwill	$ 142,030	142,588
Power Electronics Solutions
Indefinite-lived Intangible Assets [Line Items]
Goodwill	66,982	68,379
Other
Indefinite-lived Intangible Assets [Line Items]
Goodwill	$ 2,224	$ 2,224
Elastomer Component Division
Indefinite-lived Intangible Assets [Line Items]
Sensitivity analysis, Discount rate used	11.90%
ACS
Indefinite-lived Intangible Assets [Line Items]
Definite-lived other intangible assets	$ 4,700
ACS | Measurement Input, Long-term Revenue Growth Rate
Indefinite-lived Intangible Assets [Line Items]
Sensitivity analysis, Terminal year growth rate	0.046
Curamik
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived other intangible asset	$ 4,400
Definite-lived other intangible assets	$ 9,500
Curamik | Elastomer Component Division | Measurement Input, Long-term Revenue Growth Rate
Indefinite-lived Intangible Assets [Line Items]
Sensitivity analysis, Terminal year growth rate	0.033
EMS
Indefinite-lived Intangible Assets [Line Items]
Definite-lived other intangible assets	$ 140,400