Long-Term Debt and Credit Arrangements (Finance Lease Obligations) (Details) - Finance Lease Obligations [Member]	12 Months Ended
Dec. 26, 2020 yr
Minimum [Member]
Debt Instrument [Line Items]
Term of Capital Lease Obligation (in months)	3
Maximum [Member]
Debt Instrument [Line Items]
Term of Capital Lease Obligation (in months)	6

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration