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Operating Segments and Geographic Information (Contract Assets by Segment) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Contract assets | $ 22,455 | $ 22,728
Advanced Connectivity Solutions |  |
Segment Reporting Information [Line Items] |  |
Contract assets | 0 | 0
Elastomeric Material Solutions |  |
Segment Reporting Information [Line Items] |  |
Contract assets | 1,077 | 943
Power Electronics Solutions |  |
Segment Reporting Information [Line Items] |  |
Contract assets | 19,471 | 19,738
Other |  |
Segment Reporting Information [Line Items] |  |
Contract assets | $ 1,907 | $ 2,047

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