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Acquisitions, Goodwill And Other Intangible Assets (Schedule Of Other Intangible Assets) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Acquired Intangible Assets |  |
Accumulated Amortization | $ 214,750 | $ 202,675
Intangible Assets, Gross (Excluding Goodwill) | 753,754 | 722,632
Intangible Assets, Net (Excluding Goodwill) | 539,004 | 519,957
Tradenames |  |
Acquired Intangible Assets |  |
Indefinite-Lived Intangible Assets | 7,600 | 7,600
Purchased research and development |  |
Acquired Intangible Assets |  |
Indefinite-Lived Intangible Assets | 4,687 | 4,687
Customer Relationships |  |
Acquired Intangible Assets |  |
Finite-Lived Intangible Assets, Gross | 501,482 | 487,853
Accumulated Amortization | 136,343 | 127,048
Net Balance | $ 365,139 | $ 360,805
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 | 17 years | 17 years
Patents |  |
Acquired Intangible Assets |  |
Finite-Lived Intangible Assets, Gross | $ 131,232 | $ 116,725
Accumulated Amortization | 55,461 | 53,479
Net Balance | $ 75,771 | $ 63,246
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 | $ 96,980 | $ 93,994
Accumulated Amortization | 16,732 | 16,497
Net Balance | $ 80,248 | $ 77,497
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 | $ 11,464 | $ 11,464
Accumulated Amortization | 5,997 | 5,439
Net Balance | $ 5,467 | $ 6,025
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 | $ 309 | $ 309
Accumulated Amortization | 217 | 212
Net Balance | $ 92 | $ 97
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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