Fair Value of Financial Instruments - Fair Value Hierarchy (Details) - Fair value, recurring - USD ($) $ in Millions	Dec. 26, 2021	Dec. 27, 2020
Assets:
Available-for-sale securities	$ 1.9	$ 2.1
Derivatives	10.9	4.8
Total assets	12.8	6.9
Liabilities:
Derivatives	2.6	12.7
Option agreement	1.7	20.6
Total liabilities	4.3	33.3
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Available-for-sale securities	1.9	2.1
Derivatives	0.0	0.0
Total assets	1.9	2.1
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	10.9	4.8
Total assets	10.9	4.8
Liabilities:
Derivatives	2.6	12.7
Option agreement	0.0	0.0
Total liabilities	2.6	12.7
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	20.6
Total liabilities	$ 1.7	$ 20.6