Business Combinations (Narrative) (Details) - USD ($) $ in Thousands	Sep. 29, 2024	Jun. 30, 2024	Dec. 31, 2023	Oct. 01, 2023	Jul. 02, 2023	Jan. 01, 2023
Business Acquisition [Line Items]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value	$ 31,085	$ 30,540	$ 40,005	$ 37,377	$ 37,561	$ 46,618
Goodwill	6,558,660		6,533,550
Diagnostics [Member]
Business Acquisition [Line Items]
Goodwill	$ 1,950,415		$ 1,945,612