Pension and Other Post Retirement Benefit Plans - Schedule of Pension Plans Recognized in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 26, 2025	Sep. 27, 2024	Sep. 29, 2023
Reclassification adjustments:
Total	$ 1,973	$ 44,998	$ 18,297
Pension Plan | U.S. Plans
Arising during the period:
Net actuarial losses (gains)	3,965	1,576	(4,032)
Total	3,965	1,576	(4,032)
Reclassification adjustments:
Net actuarial (losses) gains	(1,104)	1,031	1,335
Prior service benefit	(47)	(321)	(324)
Total	(1,151)	710	1,011
Total	2,814	2,286	(3,021)
Pension Plan | Non-U.S. Plans
Arising during the period:
Net actuarial losses (gains)	8,150	49,685	27,188
Total	8,150	49,685	27,188
Reclassification adjustments:
Net actuarial (losses) gains	(7,785)	(5,601)	(4,802)
Prior service benefit	(1,206)	(1,125)	(1,068)
Total	(8,991)	(6,726)	(5,870)
Total	$ (841)	$ 42,959	$ 21,318