Goodwill and Intangible Assets - Summary of Purchased Intangible Assets (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 26, 2025	Dec. 27, 2024
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite and Indefinite-Lived	$ 375.0	$ 375.0
Accumulated Amortization	(211.3)	(190.1)
Total	154.7
Carrying Value, Finite And Indefinite-Lived	163.7	184.9
UCT Tradename
Finite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets acquired	9.0
Customer relationships
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	207.2	207.2
Accumulated Amortization	(131.2)	(117.4)
Total	$ 76.0	89.8
Recipes
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	20 years
Gross Carrying Amount	$ 73.2	73.2
Accumulated Amortization	(25.9)	(23.2)
Total	47.3	50.0
Intellectual property/know-how
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	48.9	48.9
Accumulated Amortization	(26.1)	(22.8)
Total	22.8	26.1
Tradename
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	32.5	32.5
Accumulated Amortization	(23.3)	(22.9)
Total	$ 9.2	9.6
Standard operating procedures
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	20 years
Gross Carrying Amount	$ 8.6	8.6
Accumulated Amortization	(3.0)	(2.7)
Total	$ 5.6	5.9
Developed technology
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	5 years
Gross Carrying Amount	$ 4.6	4.6
Accumulated Amortization	(1.8)	(1.1)
Total	$ 2.8	$ 3.5
Minimum | Customer relationships
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	6 years
Minimum | Intellectual property/know-how
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	7 years
Minimum | Tradename
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	4 years
Maximum | Customer relationships
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	10 years
Maximum | Intellectual property/know-how
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	15 years
Maximum | Tradename
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	6 years