Leases (Supplemental Balance Sheet Lease Information) (Details) - USD ($) $ in Thousands	Sep. 27, 2025	Jun. 28, 2025	Mar. 29, 2025	Dec. 28, 2024	Sep. 28, 2024	Jun. 29, 2024	Mar. 30, 2024	Dec. 30, 2023	Sep. 30, 2023
Leases [Abstract]
Operating lease right-of-use assets	$ 52,799	$ 52,877	$ 55,354	$ 56,744	$ 52,591	$ 57,669	$ 57,074	$ 59,489	$ 56,067
Operating leases - Accrued liabilities and other	11,697				11,124
Operating leases - Other long-term liabilities	52,549				53,228
Total operating lease liabilities	$ 64,246				$ 64,352
Operating leases - Accrued liabilities and other	Accrued liabilities and other				Accrued liabilities and other
Operating leases - Other long-term liabilities	Other Liabilities, Noncurrent				Other Liabilities, Noncurrent
Total operating lease liabilities	Liabilities				Liabilities
Finance leases - Property, plant and equipment, at cost	$ 157,533				$ 124,770
Finance leases - Accumulated depreciation	(27,186)				(17,101)
Finance leases - Property, plant and equipment, net	$ 130,347				$ 107,669
Finance leases - Property, plant and equipment, at cost	Property, Plant and Equipment, Net				Property, Plant and Equipment, Net
Finance leases - Accrued liabilities and other	$ 14,920				$ 8,713
Finance leases - Other long-term liabilities	119,155				101,683
Total finance lease liabilities	$ 134,075				$ 110,396
Finance leases - Accrued liabilities and other	Accrued liabilities and other				Accrued liabilities and other
Finance leases - Other long-term liabilities	Other Liabilities, Noncurrent				Other Liabilities, Noncurrent
Total finance lease liabilities	Liabilities				Liabilities
Weighted average remaining lease term - Operating leases	6 years 2 months 12 days				6 years 2 months 12 days
Weighted average remaining lease term - Finance leases	17 years 7 months 6 days				20 years 1 month 6 days
Weighted average discount rate - Operating leases	5.30%				5.20%
Weighted average discount rate - Finance leases	6.40%				6.40%