Goodwill and Other Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) $ in Thousands	12 Months Ended
	Sep. 25, 2022 USD ($)	Sep. 26, 2021 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, gross amount	$ 1,618,933	$ 1,617,174
Accumulated impairment losses	(1,288,729)	(1,288,729)
Goodwill [Roll Forward]
Goodwill, beginning of year	330,204	328,445
Measurement period adjustments	0	1,759
Disposal	(700)	0
Goodwill, end of year	$ 329,504	$ 330,204