Capital Assets - Property and Equipment (Details) - USD ($) $ in Thousands	Jan. 02, 2021	Oct. 03, 2020
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 307,845	$ 307,807
Less: Accumulated depreciation	(217,599)	(212,697)
Total property and equipment, net	90,246	95,110	[1]
Land and improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	3,967	3,963
Buildings and improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	72,076	75,689
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 231,802	$ 228,155

[1] The Consolidated Balance Sheet as of October 3, 2020 has been derived from the audited consolidated financial statements at that date.The accompanying Notes to Consolidated Financial Statements (Unaudited) are an integral part of these consolidated financial statements.