Benefit Plans - Change in Plan Assets (Details) - Pension Plan - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024
Change in plan assets
Fair value of plan assets, beginning of year	$ 118,283	$ 105,989
Actual return on plan assets	3,385	21,080
Employer contribution	900	0
Benefits paid	(8,030)	(8,786)
Fair value of plan assets, end of year	$ 114,538	$ 118,283