Goodwill and Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 28, 2024	Dec. 29, 2023
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite and Indefinite-Lived	$ 375.6	$ 375.6
Accumulated Amortization	(175.6)	(160.3)
Carrying Value, Finite-Lived	191.0
Carrying Value, Finite And Indefinite-Lived	200.0	215.3
Customer relationships
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-Lived	207.2	207.2
Accumulated Amortization	(107.5)	(97.5)
Carrying Value, Finite-Lived	$ 99.7	109.7
Customer relationships | Minimum
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	6 years
Customer relationships | Maximum
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	10 years
Recipes
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	20 years
Gross Carrying Amount, Finite-Lived	$ 73.2	73.2
Accumulated Amortization	(21.4)	(19.5)
Carrying Value, Finite-Lived	51.8	53.7
Intellectual property/know-how
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite-Lived	48.9	48.9
Accumulated Amortization	(20.6)	(18.4)
Carrying Value, Finite-Lived	$ 28.3	30.5
Intellectual property/know-how | Minimum
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	7 years
Intellectual property/know-how | Maximum
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	15 years
Tradename
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount, Finite and Indefinite-Lived	$ 32.5	32.5
Accumulated Amortization	(22.5)	(22.1)
Carrying Value, Finite And Indefinite-Lived	$ 10.0	10.4
Tradename | Minimum
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	4 years
Tradename | Maximum
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	6 years
Standard operating procedures
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	20 years
Gross Carrying Amount, Finite-Lived	$ 8.6	8.6
Accumulated Amortization	(2.5)	(2.3)
Carrying Value, Finite-Lived	$ 6.1	6.3
Developed technology
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	5 years
Gross Carrying Amount, Finite-Lived	$ 4.6	4.6
Accumulated Amortization	(0.6)	(0.2)
Carrying Value, Finite-Lived	$ 4.0	4.4
Backlog
Finite Lived Intangible Assets [Line Items]
Useful Life (In years)	1 year
Gross Carrying Amount, Finite-Lived	$ 0.6	0.6
Accumulated Amortization	(0.5)	(0.3)
Carrying Value, Finite-Lived	$ 0.1	$ 0.3