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Goodwill And Other Intangible Assets (Fair Values Of Intangible Assets Acquired In Various Business Combinations By Class) (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Schedule of Acquired Intangible Assets by Major Class [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | $ 383,685 | $ 842,268
Finite-lived intangible assets, accumulated amortization | (250,804) | (260,331)
Intangible assets, net (excluding goodwill) | 132,881 | 581,937
Customer relationships [Member] |  |
Schedule of Acquired Intangible Assets by Major Class [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 243,203 | 570,104
Finite-lived intangible assets, accumulated amortization | (173,720) | (174,982)
Marketing assets [Member] |  |
Schedule of Acquired Intangible Assets by Major Class [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 29,876 | 71,308
Finite-lived intangible assets, accumulated amortization | (11,660) | (11,985)
Developed technology [Member] |  |
Schedule of Acquired Intangible Assets by Major Class [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 110,606 | 182,956
Finite-lived intangible assets, accumulated amortization | (65,424) | (69,386)
Content [Member] |  |
Schedule of Acquired Intangible Assets by Major Class [Line Items] |  |
Finite-lived intangible assets, gross carrying amount | 0 | 17,900
Finite-lived intangible assets, accumulated amortization | $ 0 | $ (3,978)

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