Goodwill and Other Intangible Assets -Schedule of Goodwill and Identified Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 26, 2023	Sep. 25, 2022	Sep. 26, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 329,504	$ 329,504	$ 330,204
Impairment	0	(700)
Amortizable intangible assets:
Total intangibles, net	441,247	450,877
Customer and newspaper subscriber lists
Amortizable intangible assets:
Customer and newspaper subscriber lists	322,310	323,568
Less accumulated amortization	(236,913)	(228,541)
Amortizable intangible assets, net	85,397	95,027
Mastheads
Non-amortized intangible assets:
Mastheads	$ 26,346	$ 26,346