Summary of Significant Accounting Policies - Insurance reserves (Details) - USD ($) $ in Millions	Dec. 30, 2023	Dec. 31, 2022
Accounts payable and accrued liabilities
Insurance Reserve [Line Items]
Insurance reserve, current	$ 3.2	$ 2.3
Accrued Payroll and Related Taxes
Insurance Reserve [Line Items]
Insurance reserve, current	5.7	5.4
Other Liabilities
Insurance Reserve [Line Items]
Insurance reserve, noncurrent	$ 11.1	$ 8.6

Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid after one year (or the normal operating cycle, if longer).

No definition available.

Name:	us-gaap_SelfInsuranceReserveNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant