Leases (Supplemental Balance Sheet Lease Information) (Details) - USD ($) $ in Thousands	Mar. 28, 2020	Sep. 28, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 66,193	$ 0
Operating lease - Accrued liabilities and other	13,194
Operating lease - Other long-term liabilities	54,966
Total operating leases liabilities	68,160
Finance leases - Property, plant and equipment, at cost	7,966
Finance leases - Accumulated depreciation	(694)
Finance leases - Property, plant, and equipment, net	7,272
Finance leases - Accrued liabilities and other	929
Finance leases - Other long-term liabilities	6,385
Total finance lease liabilities	$ 7,314
Weighted average remaining lease term - Operating leases	7 years 7 months 6 days
Weighted average remaining lease term - Financing leases	17 years 8 months 12 days
Weighted average discount rate - Operating leases	4.70%
Weighted average discount rate - Finance leases	4.90%