Goodwill and other Intangible Assets Schedule of Intangible Assets (Details) - USD ($)	Dec. 30, 2018	Sep. 30, 2018
Schedule of Intangible Assets [Line Items]
Mastheads	$ 21,883,000	$ 21,883,000
Other intangible assets, net	115,582,000	119,819,000
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	16,069,000
Finite-Lived Intangible Assets, Amortization Expense, Rolling Year Two	15,608,000
Finite-Lived Intangible Assets, Amortization Expense, Year Three	13,706,000
Finite-Lived Intangible Assets, Amortization Expense, Year Four	12,164,000
Finite-Lived Intangible Assets, Amortization Expense, Year Five	11,513,000
Customer Lists [Member]
Schedule of Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	692,982,000	692,886,000
Finite-Lived Intangible Assets, Accumulated Amortization	599,283,000	594,950,000
Finite-Lived Intangible Assets, Net	$ 93,699,000	$ 97,936,000