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Acquisitions, Goodwill And Other Intangible Assets (Schedule Of Other Intangible Assets) (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | --- | ---
Acquired Intangible Assets |  |  |
Accumulated Amortization | $ 346,165 |  | $ 337,935
Intangible Assets, Gross (Excluding Goodwill) | 769,202 |  | 729,953
Intangible Assets, Net (Excluding Goodwill) | 423,037 |  | 392,018
Tradenames |  |  |
Acquired Intangible Assets |  |  |
Indefinite-Lived Intangible Assets | 7,432 |  | 7,432
Customer relationships |  |  |
Acquired Intangible Assets |  |  |
Finite-Lived Intangible Assets, Gross | 549,255 |  | 508,945
Accumulated Amortization | 246,938 |  | 228,332
Net Balance | $ 302,317 |  | 280,613
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 | $ 99,420 |  | 111,934
Accumulated Amortization | 61,457 |  | 74,010
Net Balance | $ 37,963 |  | 37,924
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 | $ 107,332 |  | 95,879
Accumulated Amortization | 32,563 |  | 30,524
Net Balance | $ 74,769 |  | 65,355
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 | $ 5,154 |  | 5,154
Accumulated Amortization | 4,854 |  | 4,732
Net Balance | $ 300 |  | 422
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 | 353 |  | 337
Net Balance | $ 256 |  | $ 272
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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