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Goodwill And Intangible Assets (Components Of Intangible Assets) (Details) - USD ($) $ in Thousands | Jun. 29, 2024 | Sep. 30, 2023
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Finite-Lived Intangible Assets |  |
Weighted- Average Life (years) | 12 years |
Gross Carrying Amount | $ 259,727 | $ 263,639
Accumulated Amortization | $ (193,305) | (192,002)
Customer-related |  |
Finite-Lived Intangible Assets |  |
Weighted- Average Life (years) | 11 years |
Gross Carrying Amount | $ 130,286 | 133,269
Accumulated Amortization | $ (94,104) | (93,648)
Technology-related |  |
Finite-Lived Intangible Assets |  |
Weighted- Average Life (years) | 9 years |
Gross Carrying Amount | $ 67,374 | 69,242
Accumulated Amortization | $ (55,006) | (56,106)
Program-related |  |
Finite-Lived Intangible Assets |  |
Weighted- Average Life (years) | 23 years |
Gross Carrying Amount | $ 38,363 | 37,465
Accumulated Amortization | $ (23,485) | (21,672)
Marketing-related |  |
Finite-Lived Intangible Assets |  |
Weighted- Average Life (years) | 8 years |
Gross Carrying Amount | $ 21,896 | 21,890
Accumulated Amortization | $ (19,104) | (18,995)
Other Intangible Assets |  |
Finite-Lived Intangible Assets |  |
Weighted- Average Life (years) | 10 years |
Gross Carrying Amount | $ 1,808 | 1,773
Accumulated Amortization | $ (1,606) | $ (1,581)

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