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 |
|---|---|---|
| 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 |