Goodwill and Purchased Intangible Assets - Changes in the Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2024	Dec. 30, 2023
Goodwill [Line Items]
Beginning balance	$ 315,811	$ 315,811
Goodwill from Lumina acquisition		0
Ending balance	329,980	$ 315,811
Lumina Instruments Inc [Member]
Goodwill [Line Items]
Goodwill from Lumina acquisition	$ 14,169