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Acquisitions, Goodwill And Other Intangible Assets (Schedule Of Other Intangible Assets) (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Acquired Intangible Assets |  |  |
Accumulated Amortization | $ 281,839 |  | $ 255,723
Intangible Assets, Gross (Excluding Goodwill) | 744,251 |  | 759,043
Intangible Assets, Net (Excluding Goodwill) | 462,412 |  | 503,320
Tradenames |  |  |
Acquired Intangible Assets |  |  |
Indefinite-Lived Intangible Assets | 7,600 |  | 7,600
Customer Relationships |  |  |
Acquired Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | 508,625 |  | 520,273
Accumulated Amortization | 180,810 |  | 163,562
Net Balance | $ 327,815 |  | 356,711
Customer Relationships | Minimum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 6 years | 6 years |
Customer Relationships | Maximum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 20 years | 20 years |
Patents |  |  |
Acquired Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | $ 118,914 |  | 121,167
Accumulated Amortization | 67,164 |  | 62,841
Net Balance | $ 51,750 |  | 58,326
Patents | Minimum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 3 years | 3 years |
Patents | Maximum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 20 years | 20 years |
Tradenames |  |  |
Acquired Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | $ 98,169 |  | 97,810
Accumulated Amortization | 25,503 |  | 21,380
Net Balance | $ 72,666 |  | 76,430
Tradenames | Minimum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 3 years | 3 years |
Tradenames | Maximum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 20 years | 20 years |
Non-compete Agreements |  |  |
Acquired Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | $ 10,334 |  | 11,584
Accumulated Amortization | 8,085 |  | 7,698
Net Balance | $ 2,249 |  | 3,886
Non-compete Agreements | Minimum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 3 years | 3 years |
Non-compete Agreements | Maximum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 6 years | 6 years |
Other |  |  |
Acquired Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | $ 609 |  | 609
Accumulated Amortization | 277 |  | 242
Net Balance | $ 332 |  | $ 367
Other | Minimum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 2 years | 2 years |
Other | Maximum |  |  |
Acquired Intangible Assets |  |  |
Estimated Useful Life in Years | 12 years | 12 years |

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