Fair Value of Financial Instruments - Fair Value Hierarchy (Details) - USD ($) $ in Millions	Oct. 01, 2023	Dec. 25, 2022	Sep. 25, 2022
Assets:
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Prepaid expenses and other current assets, Assets, Noncurrent, Excluding Property, Plant, And Equipment And Finance Lease Right-of-Use Asset, After Accumulated Depreciation And Amortization	Prepaid expenses and other current assets, Assets, Noncurrent, Excluding Property, Plant, And Equipment And Finance Lease Right-of-Use Asset, After Accumulated Depreciation And Amortization	Prepaid expenses and other current assets, Assets, Noncurrent, Excluding Property, Plant, And Equipment And Finance Lease Right-of-Use Asset, After Accumulated Depreciation And Amortization
Fair value, recurring
Assets:
Available-for-sale securities	$ 1.2	$ 1.7	$ 0.0
Derivatives	8.3	7.9	38.8
Total assets	9.5	9.6	38.8
Liabilities:
Derivatives	2.1	2.9	0.4
Option agreement	1.7	1.7	1.7
Total liabilities	3.8	4.6	2.1
Fair value, recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Available-for-sale securities	1.2	1.7	0.0
Derivatives	0.0	0.0	0.0
Total assets	1.2	1.7	0.0
Liabilities:
Derivatives	0.0	0.0	0.0
Option agreement	0.0	0.0	0.0
Total liabilities	0.0	0.0	0.0
Fair value, recurring | Significant Other Observable Inputs (Level 2)
Assets:
Available-for-sale securities	0.0	0.0	0.0
Derivatives	8.3	7.9	38.8
Total assets	8.3	7.9	38.8
Liabilities:
Derivatives	2.1	2.9	0.4
Option agreement	0.0	0.0	0.0
Total liabilities	2.1	2.9	0.4
Fair value, recurring | Significant Unobservable Inputs (Level 3)
Assets:
Available-for-sale securities	0.0	0.0	0.0
Derivatives	0.0	0.0	0.0
Total assets	0.0	0.0	0.0
Liabilities:
Derivatives	0.0	0.0	0.0
Option agreement	1.7	1.7	1.7
Total liabilities	$ 1.7	$ 1.7	$ 1.7