Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 27, 2020	Dec. 29, 2019
Gross deferred tax assets:
Right-of-use liabilities	$ 229.8	$ 197.6
Allowances for accounts receivable	1.8	0.9
Accruals and liabilities	3.9	2.3
Employee benefits and compensation	4.4	2.8
Other	2.6	1.8
Total	242.5	205.4
Gross deferred tax liabilities:
Right-of-use assets	(216.6)	(185.8)
Property and equipment	(14.6)	(8.8)
Goodwill and intangible assets	(64.8)	(62.9)
Other	(12.2)	(11.6)
Total	(308.2)	(269.1)
Net deferred tax liabilities	$ (65.7)	$ (63.7)