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Goodwill And Intangible Assets (Components Of Acquired Intangible Assets) (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Oct. 01, 2016
Finite-Lived Intangible Assets |  |
Weighted-Average Life (years) | 12 years |
Gross Carrying Amount | $ 318,697 | $ 329,796
Accumulated Amortization | $ (213,757) | (216,236)
Customer-Related |  |
Finite-Lived Intangible Assets |  |
Weighted-Average Life (years) | 11 years |
Gross Carrying Amount | $ 160,092 | 165,445
Accumulated Amortization | $ (115,978) | (117,434)
Technology-Related |  |
Finite-Lived Intangible Assets |  |
Weighted-Average Life (years) | 9 years |
Gross Carrying Amount | $ 68,014 | 70,277
Accumulated Amortization | $ (51,380) | (52,060)
Program-Related |  |
Finite-Lived Intangible Assets |  |
Weighted-Average Life (years) | 19 years |
Gross Carrying Amount | $ 62,152 | 64,774
Accumulated Amortization | $ (25,754) | (26,018)
Marketing-Related |  |
Finite-Lived Intangible Assets |  |
Weighted-Average Life (years) | 9 years |
Gross Carrying Amount | $ 24,462 | 25,031
Accumulated Amortization | $ (17,725) | (17,649)
Other Intangible Assets |  |
Finite-Lived Intangible Assets |  |
Weighted-Average Life (years) | 10 years |
Gross Carrying Amount | $ 3,977 | 4,269
Accumulated Amortization | $ (2,920) | $ (3,075)

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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