Income Taxes - Reconciliation of Income Tax Provision (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Income Tax Disclosure [Abstract]
Income tax at federal statutory rate	$ 0.9	$ 1.4	$ 3.3
State taxes, net of federal tax benefit and valuation allowance	0.5	0.6	0.6
Difference in tax rates between U.S. and foreign	(0.5)	1.3	1.9
Increase (decrease) in valuation allowance	1.2	(80.1)	(3.3)
Nondeductible expense	0.8	0.4	0.5
Increase in reserve for uncertain tax positions	0.9	3.0	7.7
Other	(0.8)	(0.1)	0.4
Officer’s compensation 162(m) limitation	0.9	0.6	0.5
Release of valuation allowance due to acquisitions	0.0	(1.3)	(5.2)
Stock-based compensation	0.0	0.7	(1.6)
Total	$ 3.9	$ (73.5)	$ 4.8