Discontinued Operations Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on disposition of discontinued operations before income taxes	$ 0	$ (859)	$ 179,615
(Benefit from) provision for income taxes on discontinued operations and dispositions	195	(1,311)	44,522
Disposal Group, Including Discontinued Operation, Liabilities, Current	2,112	2,165
Fluid Sciences Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on disposition of discontinued operations before income taxes	0	(66)	$ 0
Medical Imaging Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Period of Continuing Involvement after Disposal			12 years
(Loss) gain on disposition of discontinued operations before income taxes	$ 0	(793)	$ 179,615
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation			43,100
Disposal Group, Including Discontinued Operation, Consideration			277,400
Disposal Group, Including Discontinued Operation, Working Capital Adjustment			4,200
Pre-tax gain on disposition of discontinued operations			179,600
Suzhou PerkinElmer Medical Laboratory Co. Ltd [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on disposition of discontinued operations before income taxes			(1,100)
Disposal Group, Including Discontinued Operation, Consideration			$ 2,300
Multispectral Imaging Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on disposition of discontinued operations before income taxes		13,000
Disposal Group, Including Discontinued Operation, Consideration		$ 37,300