Restructuring (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023	Sep. 28, 2024
Mobidiag
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accelerated depreciation		$ 7.2
Lease asset impairment charges		12.5
Severance costs	$ 1.7	1.8	$ 11.9
Expected cost	15.5
Danbury closure
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Severance costs	1.1	$ 0.5
Expected cost	$ 8.8