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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Determinable Useful Lives By Major Category) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Intangible Assets |  |
Gross Carrying Amount | $ 142,300 | $ 142,300
Accumulated Amortization | (75,357) | (69,871)
Net Carrying Amount | 66,943 | 72,429
Trade Name |  |
Intangible Assets |  |
Gross Carrying Amount | 22,500 | 22,500
Accumulated Amortization | (12,946) | (11,932)
Net Carrying Amount | 9,554 | 10,568
Technological Know-How |  |
Intangible Assets |  |
Gross Carrying Amount | 55,300 | 55,300
Accumulated Amortization | (36,384) | (34,091)
Net Carrying Amount | 18,916 | 21,209
Customer-Related Intangible |  |
Intangible Assets |  |
Gross Carrying Amount | 64,500 | 64,500
Accumulated Amortization | (26,027) | (23,848)
Net Carrying Amount | $ 38,473 | $ 40,652

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