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Acquisitions, Goodwill And Other Intangible Assets (Schedule Of Other Intangible Assets) (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Acquired Intangible Assets |  |  |
Accumulated Amortization | $ 328,852 |  | $ 293,289
Intangible Assets, Gross (Excluding Goodwill) | 741,670 |  | 742,048
Intangible Assets, Net (Excluding Goodwill) | 412,818 |  | 448,759
Tradenames |  |  |
Acquired Intangible Assets |  |  |
Indefinite-Lived Intangible Assets | 7,432 |  | 7,600
Customer Relationships |  |  |
Acquired Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | 513,628 |  | 509,505
Accumulated Amortization | 218,930 |  | 189,967
Net Balance | $ 294,698 |  | 319,538
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 | $ 114,248 |  | 114,864
Accumulated Amortization | 72,384 |  | 67,602
Net Balance | $ 41,864 |  | 47,262
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 | $ 99,849 |  | 99,366
Accumulated Amortization | 31,796 |  | 26,978
Net Balance | $ 68,053 |  | 72,388
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 | $ 5,904 |  | 10,104
Accumulated Amortization | 5,417 |  | 8,453
Net Balance | $ 487 |  | 1,651
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 | 325 |  | 289
Net Balance | $ 284 |  | $ 320
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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