Income Taxes - Deferred Taxes (Details) - USD ($) $ in Millions	Dec. 29, 2024	Dec. 31, 2023
Deferred tax assets:
Stock-based compensation	$ 7.3	$ 9.3
Payroll related accruals	9.4	8.6
Lease accruals	28.7	27.0
Net operating loss carryforwards	33.3	44.7
Tax credit carryforwards	12.7	12.2
Deferred expenses	15.7	12.6
Other	17.0	19.8
Gross deferred tax assets	124.1	134.2
Valuation allowance	(7.6)	(12.6)
Total deferred tax assets, net of valuation allowance	116.5	121.6
Deferred tax liabilities:
Unearned revenue	(3.2)	(2.9)
Operating lease right-of-use assets	(25.5)	(24.2)
Other intangibles	(19.4)	(22.2)
Property and equipment, principally due to differences in depreciation	(6.6)	(6.3)
Other	(2.3)	(2.0)
Total deferred tax liabilities	(57.0)	(57.6)
Net deferred tax asset	$ 59.5	$ 64.0