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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, 2023
Dec. 31, 2022
Indefinite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount $ 142,300 $ 142,300
Accumulated Amortization (95,631) (90,753)
Net Carrying Amount 46,669 51,547
Trade names    
Indefinite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 22,500 22,500
Accumulated Amortization (16,815) (15,869)
Net Carrying Amount 5,685 6,631
Technology and know-how    
Indefinite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 55,300 55,300
Accumulated Amortization (44,154) (42,371)
Net Carrying Amount 11,146 12,929
Customer-related intangibles    
Indefinite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 64,500 64,500
Accumulated Amortization (34,662) (32,513)
Net Carrying Amount $ 29,838 $ 31,987