Fair Value of Financial Instruments - Fair Value Hierarchy (Details) - Fair value, recurring - USD ($) $ in Millions	Dec. 31, 2023	Dec. 25, 2022
Assets:
Available-for-sale securities	$ 1.1	$ 1.7
Derivatives	0.7	7.9
Total assets	1.8	9.6
Liabilities:
Derivatives	3.9	2.9
Option agreement	1.7	1.7
Total liabilities	5.6	4.6
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Available-for-sale securities	1.1	1.7
Derivatives	0.0	0.0
Total assets	1.1	1.7
Liabilities:
Derivatives	0.0	0.0
Option agreement	0.0	0.0
Total liabilities	0.0	0.0
Significant Other Observable Inputs (Level 2)
Assets:
Available-for-sale securities	0.0	0.0
Derivatives	0.7	7.9
Total assets	0.7	7.9
Liabilities:
Derivatives	3.9	2.9
Option agreement	0.0	0.0
Total liabilities	3.9	2.9
Significant Unobservable Inputs (Level 3)
Assets:
Available-for-sale securities	0.0	0.0
Derivatives	0.0	0.0
Total assets	0.0	0.0
Liabilities:
Derivatives	0.0	0.0
Option agreement	1.7	1.7
Total liabilities	$ 1.7	$ 1.7