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Goodwill and other Intangible Assets Schedule of Intangible Assets (Details) - USD ($)
Jun. 24, 2018
Sep. 24, 2017
Schedule of Intangible Assets [Line Items]    
Mastheads $ 21,883,000 $ 22,035,000
Other intangible assets, net 123,995,000 136,302,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 16,766,000  
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Two 15,695,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Three 15,269,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Four 12,379,000  
Finite-Lived Intangible Assets, Amortization Expense, Year Five 11,898,000  
Customer Lists [Member]    
Schedule of Intangible Assets [Line Items]    
Finite-Lived Intangible Assets, Gross 692,764,000 691,994,000
Finite-Lived Intangible Assets, Accumulated Amortization 590,652,000 577,727,000
Finite-Lived Intangible Assets, Net 102,112,000 114,267,000
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