Depreciation and Amortization Expenses by Reportable Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2022	Apr. 02, 2021
Depreciation and Amortization Expenses
Depreciation and amortization expenses	$ 14,044	$ 9,849
Unallocated Corporate and Shared Services
Depreciation and Amortization Expenses
Depreciation and amortization expenses	103	69
Photonics | Operating Segments
Depreciation and Amortization Expenses
Depreciation and amortization expenses	2,777	2,898
Vision | Operating Segments
Depreciation and Amortization Expenses
Depreciation and amortization expenses	4,427	5,275
Precision Motion | Operating Segments
Depreciation and Amortization Expenses
Depreciation and amortization expenses	$ 6,737	$ 1,607