Stock Ownership Plans - Summary of Restricted Stock Activity (Details) - Restricted Stock - $ / shares shares in Thousands	12 Months Ended
	Sep. 25, 2022	Sep. 26, 2021	Sep. 27, 2020
Number of Shares
Outstanding, beginning of year (in shares)	154	155	148
Granted (in shares)	78	46	72
Vested (in shares)	(66)	(45)	(61)
Forfeited (in shares)	(1)	(2)	(4)
Outstanding, end of year (in shares)	165	154	155
Weighted Average Grant Date Fair Value
Outstanding, beginning of year (in dollars per share)	$ 16.70	$ 21.50	$ 24.90
Granted (in dollars per share)	30.01	11.20	16.20
Vested (in dollars per share)	20.93	27.30	23.40
Forfeitures (in dollars per share)	23.60	16.10	24.40
Outstanding, end of year (in dollars per share)	$ 21.21	$ 16.70	$ 21.50