Pension and Other Post Retirement Benefit Plans - Schedule of Accumulated Benefit Obligation (Details) - Pension Plan - USD ($) $ in Thousands	Sep. 26, 2025	Sep. 27, 2024
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation at the end of the year	$ 280,165	$ 295,691
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation at the end of the year	$ 1,415,467	$ 1,499,884