Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	Dec. 28, 2019	Dec. 29, 2018
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 249,702	$ 234,236
Less: Accumulated depreciation	(133,582)	(120,571)
Construction in progress	17,424	13,203
Property, Plant and Equipment, Net	133,544	126,868
Operating lease ROU assets	12,310
Total	145,854	126,868
Machinery and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	144,820	134,244
Office furniture and equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	19,808	17,902
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	54,979	54,592
Building and land improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	16,510	9,781
Land [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 13,585	$ 17,717