Revenue - Summary of Net Revenue by Line of Business (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2022	Jan. 03, 2021	Dec. 29, 2019
Disaggregation Of Revenue [Line Items]
Collaborations and Other Revenue	$ 31.4	$ 28.8	$ 23.9
Net Revenue	2,042.8	1,766.2	1,801.5
Clinical Laboratories
Disaggregation Of Revenue [Line Items]
Total Product Revenue	1,340.9	1,148.3	1,142.3
Transfusion Medicine
Disaggregation Of Revenue [Line Items]
Total Product Revenue	664.3	580.6	598.0
Other Product Revenue
Disaggregation Of Revenue [Line Items]
Total Product Revenue	$ 6.2	$ 8.5	$ 37.3