Summary Operating Results of Discontinued Operations for the Periods Prior to Disposition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operations	$ 259,890	$ 17,101	$ 22,583
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	513,591	56,503	53,721
Analytical, Food and Enterprise Services businesses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	176,324	1,298,376	1,239,361
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	125,219	859,330	822,048
Disposal Group, Including Discontinued Operation, General and Administrative Expense	78,613	306,032	268,760
Disposal Group, Including Discontinued Operations, Research and development expenses	10,434	64,605	74,632
Disposal Group, Including Discontinued Operation, Operating Income (Loss)	(37,942)	68,409	73,921
Income from discontinued operations before income taxes	773,481	73,604	76,304
(Loss) gain on disposition of discontinued operations before income taxes	811,472	0	0
Discontinued Operation, Other (Expense) Income, net	(49)	5,195	2,383
Discontinued Operation, Total Other (Expense) Income	811,423	5,195	2,383
Discontinued operations	259,890	17,101	22,583
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	$ 513,591	$ 56,503	$ 53,721