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Goodwill And Other Intangible Assets (Schedule Of Intangible Assets With Determinable Useful Lives By Major Category) (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 142,300 $ 142,300
Accumulated Amortization (107,902) (99,927)
Net Carrying Amount 34,398 42,373
Trade Names    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 22,500 22,500
Accumulated Amortization (18,226) (17,379)
Net Carrying Amount 4,274 5,121
Technology and know-how    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 55,300 55,300
Accumulated Amortization (48,613) (45,746)
Net Carrying Amount 6,687 9,554
Customer-related intangibles    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 64,500 64,500
Accumulated Amortization (41,063) (36,802)
Net Carrying Amount $ 23,437 $ 27,698