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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 |

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