Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Apr. 01, 2022	Sep. 24, 2021
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	$ 1,093,530	$ 1,072,322
Less: accumulated depreciation	(565,907)	(537,941)
Property, Plant And Equipment, Net	527,623	534,381
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	41,993	42,041
Building [Member]
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	284,232	284,146
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	88,794	88,549
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	134,771	128,008
Computer Systems and Software [Member]
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	265,021	258,981
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	33,713	33,565
Equipment Leased to Other Party [Member]
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	227,461	214,109
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant And Equipment, Gross	$ 17,545	$ 22,923