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Other Financial Information Other Financial Information (Property, Plant and Equipment) (Details) - USD ($)
$ in Thousands
Oct. 01, 2021
Oct. 02, 2020
Property, Plant and Equipment [Line Items]    
Property, equipment and improvements, gross $ 862,804 $ 787,258
Accumulated depreciation and amortization (509,687) (467,887)
Property, Equipment and Improvements, net 353,117 319,371
Land    
Property, Plant and Equipment [Line Items]    
Property, equipment and improvements, gross 970 966
Buildings    
Property, Plant and Equipment [Line Items]    
Property, equipment and improvements, gross 52,822 21,550
Equipment    
Property, Plant and Equipment [Line Items]    
Property, equipment and improvements, gross 586,302 560,352
Leasehold improvements    
Property, Plant and Equipment [Line Items]    
Property, equipment and improvements, gross 201,522 187,980
Construction in progress    
Property, Plant and Equipment [Line Items]    
Property, equipment and improvements, gross $ 21,188 $ 16,410