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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, 2022 | Dec. 31, 2021
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Intangible Assets |  |
Gross Carrying Amount | $ 142,300 | $ 142,300
Accumulated Amortization | (83,207) | (80,616)
Net Carrying Amount | 59,093 | 61,684
Trade Names |  |
Intangible Assets |  |
Gross Carrying Amount | 22,500 | 22,500
Accumulated Amortization | (14,425) | (13,935)
Net Carrying Amount | 8,075 | 8,565
Technology Know-How |  |
Intangible Assets |  |
Gross Carrying Amount | 55,300 | 55,300
Accumulated Amortization | (39,505) | (38,486)
Net Carrying Amount | 15,795 | 16,814
Customer-Related Intangible Assets |  |
Intangible Assets |  |
Gross Carrying Amount | 64,500 | 64,500
Accumulated Amortization | (29,277) | (28,195)
Net Carrying Amount | $ 35,223 | $ 36,305

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