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Goodwill and other Intangible Assets Schedule of Intangible Assets (Details) - USD ($) | Sep. 30, 2018 | Sep. 24, 2017
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Schedule of Intangible Assets [Line Items] |  |
Business acquisition; headline purchase price |  | $ 7,150,000
Mastheads | $ 21,883,000 | 22,035,000
Other intangible assets, net | 119,819,000 | 136,302,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months | 16,417,000 |
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Two | 15,651,000 |
Finite-Lived Intangible Assets, Amortization Expense, Year Three | 14,488,000 |
Finite-Lived Intangible Assets, Amortization Expense, Year Four | 12,308,000 |
Finite-Lived Intangible Assets, Amortization Expense, Year Five | 11,687,000 |
Customer Lists [Member] |  |
Schedule of Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross | 692,886,000 | 691,994,000
Finite-Lived Intangible Assets, Accumulated Amortization | 594,950,000 | 577,727,000
Finite-Lived Intangible Assets, Net | 97,936,000 | 114,267,000
Noncompete Agreements [Member] |  |
Schedule of Intangible Assets [Line Items] |  |
Finite-Lived Intangible Assets, Gross | 28,524,000 | 28,524,000
Finite-Lived Intangible Assets, Accumulated Amortization | 28,524,000 | 28,524,000
Finite-Lived Intangible Assets, Net | $ 0 | $ 0

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- Definition Schedule of Intangible Assets [Line Items]- Tabular disclosure of assets excluding financial assets and goodwill, lacking physical substance with both finite and infinite lives, by major class. + 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 of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + 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)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the second rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + 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)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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