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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Determinable Useful Lives By Major Category) (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Intangible Assets |  |
Gross Carrying Amount | $ 142,300 | $ 142,300
Accumulated Amortization | (61,371) | (58,446)
Net Carrying Amount | 80,929 | 83,854
Trade Name |  |
Intangible Assets |  |
Gross Carrying Amount | 22,500 | 22,500
Accumulated Amortization | (10,385) | (9,861)
Net Carrying Amount | 12,115 | 12,639
Technological Know-How |  |
Intangible Assets |  |
Gross Carrying Amount | 55,300 | 55,300
Accumulated Amortization | (30,416) | (29,112)
Net Carrying Amount | 24,884 | 26,188
Customer-Related Intangible |  |
Intangible Assets |  |
Gross Carrying Amount | 64,500 | 64,500
Accumulated Amortization | (20,570) | (19,473)
Net Carrying Amount | $ 43,930 | $ 45,027

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