Comprehensive Income or Loss	9 Months Ended
Sep. 25, 2021
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Comprehensive Income or Loss	J. Comprehensive Income or Loss Comprehensive income or loss represents net income or loss, plus a defined benefit plans liability adjustment, net of tax effect, and foreign currency translation adjustment. The foreign currency translation adjustments for the interim periods ended September 25, 2021 and September 26, 2020 were not material. During the thirteen weeks ended September 26, 2020, the Company incurred a $1.1 million settlement loss, net of tax, as a result of terminating a defined benefit plan.

The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-URI http://asc.fasb.org/topic&trid=2134417

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(21))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(23))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

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