Business Combinations (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023	Mar. 31, 2024	Dec. 31, 2023	Apr. 02, 2023	Jan. 01, 2023
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value	$ 30,540	$ 37,561	$ 30,540	$ 37,561	$ 30,516	$ 40,005	$ 43,834	$ 46,618
Goodwill	6,496,971		6,496,971			6,533,550
Interest Expense	24,717	$ 26,007	49,114	$ 48,745
Diagnostics [Member]
Business Acquisition [Line Items]
Goodwill	$ 1,934,719		$ 1,934,719			$ 1,945,612