Revenue from Contract with Customer (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 2,750,571	$ 3,311,822	$ 3,827,808
Contract with Customer, Asset, Net, Current	52,648	56,631
Contract with Customer, Liability, Current	(22,504)	(30,133)
Contract with Customer, Asset and Liability [Abstract]
Contract with Customer, Asset, Net, Current	52,648	56,631
Contract with Customer, Liability, Current	(22,504)	(30,133)
Americas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,215,613	1,662,643	1,806,672
Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	747,024	831,811	1,216,810
Asia [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	787,934	817,368	804,326
Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,458,231	2,018,913	2,931,939
Diagnostics [Member] | Customer Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax		330,700	638,600
Diagnostics [Member] | Americas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	543,875	979,473	1,362,213
Diagnostics [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	438,457	534,343	982,476
Diagnostics [Member] | Asia [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	475,899	505,097	587,250
Life Sciences [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,292,340	1,292,909	895,869
Life Sciences [Member] | Americas [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	671,738	683,170	444,459
Life Sciences [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	308,567	297,468	234,334
Life Sciences [Member] | Asia [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	312,035	312,271	217,076
Life Sciences reagents [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	732,789	691,344	399,518
Life Sciences reagents [Member] | Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Life Sciences reagents [Member] | Life Sciences [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	732,789	691,344	399,518
Life Sciences instruments [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	381,262	405,554	329,584
Life Sciences instruments [Member] | Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Life Sciences instruments [Member] | Life Sciences [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	381,262	405,554	329,584
Life Sciences software [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	178,289	196,011	166,767
Life Sciences software [Member] | Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Life Sciences software [Member] | Life Sciences [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	178,289	196,011	166,767
Reproductive health [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	501,302	516,574	514,863
Reproductive health [Member] | Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	501,302	516,574	514,863
Reproductive health [Member] | Life Sciences [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Applied genomics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	228,443	393,602	619,357
Applied genomics [Member] | Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	228,443	393,602	619,357
Applied genomics [Member] | Life Sciences [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Immunodiagnostics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	728,486	1,108,737	1,797,719
Immunodiagnostics [Member] | Diagnostics [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	728,486	1,108,737	1,797,719
Immunodiagnostics [Member] | Life Sciences [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 0	$ 0	$ 0