Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Oct. 03, 2020	Sep. 29, 2019	Sep. 28, 2019
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 901,979		$ 856,533
Less: accumulated depreciation	(518,318)		(472,309)
Total property, plant and equipment, net	383,661	$ 382,391	384,224
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	334,083		289,051
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	403,894		381,656
Computer hardware and software
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	147,723		136,227
Capital assets in progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 16,279		$ 49,599