Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 30, 2023	Dec. 31, 2022
Property, plant and equipment
Property, plant and equipment - gross	$ 441,932	$ 495,054
Less accumulated depreciation and amortization	384,688	415,172
Property, plant and equipment-net	57,244	79,882
Land
Property, plant and equipment
Property, plant and equipment - gross	1,004	4,180
Buildings
Property, plant and equipment
Property, plant and equipment - gross	7,589	23,404
Machinery and equipment
Property, plant and equipment
Property, plant and equipment - gross	36,046	36,654
Furniture and fixtures
Property, plant and equipment
Property, plant and equipment - gross	68,467	73,721
Computer equipment and software
Property, plant and equipment
Property, plant and equipment - gross	193,604	198,206
Leasehold improvements
Property, plant and equipment
Property, plant and equipment - gross	131,502	153,161
Construction in progress
Property, plant and equipment
Property, plant and equipment - gross	$ 3,720	$ 5,728