Organization and Significant Accounting Policies - Narrative - Warranties (Details)	12 Months Ended
	Jan. 03, 2021
Instruments
Product Warranty Liability [Line Items]
Warranty period	1 year
Consumables | Minimum
Product Warranty Liability [Line Items]
Warranty period	6 months
Consumables | Maximum
Product Warranty Liability [Line Items]
Warranty period	12 months