Restructuring and Lease Charges, Net (Schedule of Initial Charges) (Details) $ in Thousands	3 Months Ended
	Apr. 03, 2022 USD ($) employees	Jan. 02, 2022 USD ($) employees	Oct. 03, 2021 USD ($) employees	Jul. 04, 2021 USD ($) employees	Apr. 04, 2021 USD ($) employees
Q1 2022 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employees	81
Restructuring and contract termination charges, net	$ 6,231
Q4 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employees		31
Restructuring and contract termination charges, net		$ 3,366
Q3 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employees			39
Restructuring and contract termination charges, net			$ 786
Q2 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employees				25
Restructuring and contract termination charges, net				$ 1,532
Q1 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Number of Positions Eliminated | employees					77
Restructuring and contract termination charges, net					$ 5,556
Diagnostics [Member] | Employee Severance [Member] | Q1 2022 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net	399
Diagnostics [Member] | Employee Severance [Member] | Q4 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net		77
Diagnostics [Member] | Employee Severance [Member] | Q3 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net			366
Diagnostics [Member] | Employee Severance [Member] | Q2 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net				564
Diagnostics [Member] | Employee Severance [Member] | Q1 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net					1,615
Diagnostics [Member] | Facility Closing [Member] | Q1 2022 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net	0
Diagnostics [Member] | Facility Closing [Member] | Q4 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net		0
Diagnostics [Member] | Facility Closing [Member] | Q3 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net			0
Diagnostics [Member] | Facility Closing [Member] | Q2 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net				0
Diagnostics [Member] | Facility Closing [Member] | Q1 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net					0
Discovery & Analytical Solutions [Member] | Employee Severance [Member] | Q1 2022 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net	5,832
Discovery & Analytical Solutions [Member] | Employee Severance [Member] | Q4 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net		3,139
Discovery & Analytical Solutions [Member] | Employee Severance [Member] | Q3 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net			420
Discovery & Analytical Solutions [Member] | Employee Severance [Member] | Q2 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net				968
Discovery & Analytical Solutions [Member] | Employee Severance [Member] | Q1 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net					3,941
Discovery & Analytical Solutions [Member] | Facility Closing [Member] | Q1 2022 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net	0
Discovery & Analytical Solutions [Member] | Facility Closing [Member] | Q4 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net		$ 150
Discovery & Analytical Solutions [Member] | Facility Closing [Member] | Q3 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net			$ 0
Discovery & Analytical Solutions [Member] | Facility Closing [Member] | Q2 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net				$ 0
Discovery & Analytical Solutions [Member] | Facility Closing [Member] | Q1 2021 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net					0
Discovery & Analytical Solutions [Member] | Facility Relocation [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and contract termination charges, net	$ 1,300				$ 200